Time management: Rybka vs IvanHoe

kingliveson · Post by **kingliveson** » Sun Jul 11, 2010 6:59 pm

Ivanhoe v Rybka R009, Blitz:4'+2  2010                

1   IvanHoe 9.55b x64  +79/=160/-61 53.00%  159.0/300
2   Deep Rybka 4 x64   +61/=160/-79 47.00%  141.0/300

† 150 Positions (test suite)
† 3-4-5 Nalimov/Robbobase
† 128 MB Hash
† Ponder Off
† Athlon 64 X2 6000+ @ 3100 MHz
† 2 Cores
† 4+2 Time Control

Rybka
TC Buffer 3
TC Normal Move Time 100
TC Max Move Time 150

IvanHoe
TimeEasyFactor 18
TimeOrdinaryFactor 69
TimeAbsolutePercent 23
BufferTime 2000
Pawn Hash 8 MB
AllowInstantMoveFromHash Off

Game data available: http://chess.cygnitec.com/pgn/

After 500+ games using these settings, do we yet have enough games to convince skeptics?! Rybka 4 is either slightly weaker than newer IvanHoe releases or they are on par. I have not tested compiles by others -- though a speed comparison showed them to be minimum 5 % slower. Only unmodified builds from source are used for these matches.

kingliveson · Post by **kingliveson** » Thu Jul 15, 2010 12:43 am

Code: Select all

MS, 40'/40+40'/40+40'  2010                   

1   Rybka 4 w32        +13/=31/-6 57.00%   28.5/50
2   IvanHoe 9.55b w32  +6/=31/-13 43.00%   21.5/50

† 25 Positions (test suite)
† No EGTB
† 256 MB Hash
† Ponder Off
† AMD Turion(tm) 64 Mobile Technology ML-37
† 1 CPU
† 40/40 Repeating Time Control

Rybka
TC Buffer 3
TC Normal Move Time 100
TC Max Move Time 150

IvanHoe
TimeEasyFactor 14
TimeOrdinaryFactor 64
TimeAbsolutePercent 24
BufferTime 2000
Pawn Hash 16 MB
AllowInstantMoveFromHash Off

Game data available: http://chess.cygnitec.com/pgn/

Clearly, something did not work right.

BB+ · Post by **BB+** » Thu Jul 15, 2010 2:24 am

Code: Select all
1   Rybka 4 w32        +13/=31/-6 57.00%   28.5/50
2   IvanHoe 9.55b w32  +6/=31/-13 43.00%   21.5/50
Clearly, something did not work right.

Or it could just be variance [I get about an 16.7% chance of a 50-50 match-up being +13-6 or worse (one way or the other) after 19 decisive results].The only comment I could make is that "TimeOrdinaryFactor 64" looks a bit low (compared to the default, at least), though you probably have a better idea about it than I do.

kingliveson · Post by **kingliveson** » Thu Jul 15, 2010 3:53 am

BB+ wrote:
Code: Select all
1   Rybka 4 w32        +13/=31/-6 57.00%   28.5/50
2   IvanHoe 9.55b w32  +6/=31/-13 43.00%   21.5/50
Clearly, something did not work right.
Or it could just be variance [I get about an 16.7% chance of a 50-50 match-up being +13-6 or worse (one way or the other) after 19 decisive results].The only comment I could make is that "TimeOrdinaryFactor 64" looks a bit low (compared to the default, at least), though you probably have a better idea about it than I do.

I doubt my understanding of the time control is better. TimeOrdinaryFactor 64 is probably too low especially given that these were long games. Though it's only 50 games, Rybka winning twice as many +1 shows dominance here.

kingliveson · Post by **kingliveson** » Mon Jul 19, 2010 3:51 am

Code: Select all

Rybka vs IvanHoe, 4'/40+4'/40+4'/40                           

1   Deep Rybka 4 SSE42 x64  +14/=25/-11 53.00%   26.5/50
2   IvanHoe 9.53b x64       +11/=25/-14 47.00%   23.5/50

† 25 Positions (test suite)
† 3-4-5 Nalimov/Robbobase
† 256 MB Hash
† Ponder Off
† Phenom II 940
† 4 Cores
† 40/4 Repeating Time Control

Rybka
TC Buffer 3
TC Normal Move Time 100
TC Max Move Time 150

IvanHoe
Pawn Hash 64 MB

Game data available: http://chess.cygnitec.com/pgn/

Rybka still showing muscles -- though more games are needed.

kingliveson · Post by **kingliveson** » Tue Jul 20, 2010 1:38 am

Some long games -- but old laptop could not handle the heat and froze before the 50 matches were completed.

MS, 40'/40+40'/40+40'  2010
                       123456789012345678901234567890
1   IvanHoe 9.54b w32   ½0½½010½1100½001½011½11½½½01½½  15.0/30  225.00
2   Rybka 4 w32        ½1½½101½0011½110½100½00½½½10½½   15.0/30  225.00

† 15 Positions
† No EGTB
† 256 MB Hash
† Ponder Off
† AMD Turion(tm) 64 Mobile Technology ML-37
† 1 CPU
† 40/40 Repeating Time Control

Rybka
TC Buffer 3
TC Normal Move Time 100
TC Max Move Time 150

IvanHoe
Pawn Hash 64 MB

Game data available: http://chess.cygnitec.com/pgn/

kingliveson · Post by **kingliveson** » Sat Jul 24, 2010 4:57 am

Code: Select all

IvanHoe vs Rybka, Blitz:1'  2010                      

1   IvanHoe 9.53b x64       +154/=294/-152 50.17%  301.0/600
2   Deep Rybka 4 SSE42 x64  +152/=294/-154 49.83%  299.0/600

† 50/100/150 Positions (test suite)
† EGTB Off
† Ponder Off
† 128 MB Hash
† Phenom II 940
† 4 Cores
† 1+0 Time Control

Rybka
TC Buffer 2
TC Normal Move Time 72
TC Max Move Time 115

IvanHoe
Pawn Hash 32 MB

Time management settings used for Rybka is considered best (from what we are told) for bullets. Also, these tests were done in attempt to derive a more adaptive time management with slightly modified IvanHoe time management code. Rather than forcing end users to tweak time management parameters, it's better handled via source code.

Game data available: http://chess.cygnitec.com/pgn/

kingliveson · Post by **kingliveson** » Sun Jul 25, 2010 3:54 pm

Code: Select all

Ivanhoe v Rybka R010, 4'/40+4'/40+4'/40  2010                       

1   IvanHoe 9.53b x64  +61/=143/-46 53.00%  132.5/250
2   Deep Rybka 4 x64   +46/=143/-61 47.00%  117.5/250

† 150/25/50 Positions (test suite)
† 3-4-5 Nalimov/Robbobase
† 128 MB Hash
† Ponder Off
† Athlon 64 X2 6000+ @ 3100 MHz
† 2 Cores
† 40/4 Repeating Time Control

Rybka
TC Buffer 3
TC Normal Move Time 100
TC Max Move Time 150

IvanHoe
Pawn Hash 16 MB

Code: Select all

Ivanhoe v Rybka R010, 4'/40+4'/40+4'/40  2010*

1   IvanHoe 9.53b x64  +22/=57/-21 50.50%   50.5/100
2   Deep Rybka 4 x64   +21/=57/-22 49.50%   49.5/100

Code: Select all

Ivanhoe v Rybka R010, 4'/40+4'/40+4'/40  2010                       

1   Deep Rybka 4 x64   +13/=27/-10 53.00%   26.5/50
2   IvanHoe 9.53b x64  +10/=27/-13 47.00%   23.5/50

Code: Select all

Ivanhoe v Rybka R010, 4'/40+4'/40+4'/40  2010                       

1   IvanHoe 9.53b x64  +29/=59/-12 58.50%   58.5/100
2   Deep Rybka 4 x64   +12/=59/-29 41.50%   41.5/100

These tests were done in attempt to derive a more adaptive time management with slightly modified IvanHoe time management code.
*Tournament was set for 300 rounds, but ended after 100.

Game data available: http://chess.cygnitec.com/pgn/

kingliveson · Post by **kingliveson** » Sun Jul 25, 2010 6:54 pm

IvanHoe Time Management 5301  2010 

                               1            2            3            4
1 Deep Rybka 4 SSE42 x64  ***********  51.0 - 49.0  53.0 - 47.0  53.0 - 47.0  157.0/300
2 IvanHoe 9.53b x64 TMR   49.0 - 51.0  ***********  49.5 - 50.5  50.0 - 50.0  148.5/300
3 IvanHoe 9.53b x64 TMD   47.0 - 53.0  50.5 - 49.5  ***********  50.0 - 50.0  147.5/300
4 IvanHoe 9.53b x64 TMN   47.0 - 53.0  50.0 - 50.0  50.0 - 50.0  ***********  147.0/300

† 50 Positions (test suite)
† EGTB Off
† Ponder Off
† 128 MB Hash
† Phenom II 940
† 4 Cores
† 1+0 Time Control

Rybka
TC Buffer 2
TC Normal Move Time 72
TC Max Move Time 115

IvanHoe
Pawn Hash 16 MB

Time management settings used for Rybka is considered best for bullets. Also, these tests were done with slightly modified IvanHoe time management code.

Game data available: http://chess.cygnitec.com/pgn/

kingliveson · Post by **kingliveson** » Sat Aug 21, 2010 7:20 pm

Interesting IvanHoe time management settings:

BufferTime 2000
AllowInstantMoveFromHash true
TimeImitateOpponent true
TimeMoreWhenLosing true
TimeMoreWhenWinning true
TimeEasyFactor 10 (default 15)
TimeOrdinaryFactor 25 (default 75)
TimeAbsolutePercent 15 (default 25)

Code: Select all

IvanHoe vs Rybka, Blitz:1'  2010                            

1   IvanHoe 9.52b x64       +18/=22/-10 58.00%   29.0/50
2   Deep Rybka 4 SSE42 x64  +10/=22/-18 42.00%   21.0/50

Code: Select all

IvanHoe vs Houdini, Blitz:1'  2010                            

1   Houdini 1.03a x64 POPCNT 4_CP  +13/=26/-11 52.00%   26.0/50
2   IvanHoe 9.52b x64              +11/=26/-13 48.00%   24.0/50

Code: Select all

IvanHoe vs Houdini, Blitz:5'  2010                                  

1   Houdini 1.03a x64 POPCNT 4_CP  +10/=30/-10 50.00%   25.0/50  625.00
2   IvanHoe 9.52b x64              +10/=30/-10 50.00%   25.0/50  625.00

† 25 Positions (test suite)
† 3-4-5 Nalimov/RobboBases*
† Ponder Off
† 128 MB Hash
† Pawn Hash 16 MB
† Phenom II 940
† 4 Cores

Tiny sample with same settings, 256 MB Hash, 32 MB Pawn Hash, and 10 minutes time control:

[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "1"] 
[White "IvanHoe 9.52b x64"] 
[Black "Houdini 1.03a x64 POPCNT 4_CP"] 
[Result "1/2-1/2"] 
[ECO "A00"] 
[Annotator "-0.31;-0.31"] 
[PlyCount "126"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=21.4 plies; 5,917kN/s B=21.5 plies; 5, 
730kN/s} 1. h3 e5 2. c3 d5 3. d4 Nc6 4. Be3 Nf6 {Both last book move} 5. dxe5 { 
-0.31/20 7} Nxe5 {-0.31/22 23} 6. Nd2 {-0.44/21 11} Bd6 {-0.28/20 9} 7. Qc2 { 
-0.33/22 46 (Ngf3)} O-O {-0.33/19 9} 8. O-O-O {-0.42/22 64 (Ngf3)} Ng6 {-0.32/ 
20 13} 9. Ngf3 {-0.43/21 37 (g4)} a5 {-0.34/19 10 (Re8)} 10. Kb1 {-0.31/20 14} 
a4 {-0.28/19 13} 11. a3 {-0.40/21 26} Re8 {-0.30/19 8} 12. c4 {-0.37/20 5} dxc4 
{-0.31/19 8} 13. Nxc4 {-0.40/20 25} Be6 {-0.28/20 11} 14. Ka1 {-0.42/20 33 
(Bg5)} b5 {-0.45/18 13 (Ra6)} 15. Nxd6 {-0.49/18 7} cxd6 {-0.44/17 0} 16. Nd4 { 
-0.56/20 17} Rc8 {-0.50/20 15 (Ne5)} 17. Nxe6 {-0.49/18 4} Rxe6 {-0.46/22 29} 
18. Qb1 {-0.54/21 19 (Qf5)} Ne4 {-0.46/20 8 (Ne5)} 19. g4 {-0.58/19 12} b4 {-0. 
50/19 7} 20. Rd3 {-0.49/18 4 (axb4)} Qh4 {-0.44/18 6 (Rf6)} 21. Rd4 {-0.53/18 7 
} Nxf2 {-0.48/19 8} 22. Bxf2 {-0.53/16 0} Qxf2 {-0.47/18 0} 23. Rxb4 {-0.44/19 
11} Re3 {-0.45/20 10 (d5)} 24. Ka2 {-0.52/20 4} Ne7 {-0.52/19 8} 25. Qd1 {-0. 
71/20 22 (Rxa4)} Nc6 {-0.56/19 6} 26. Rb7 {-0.64/21 8} Na5 {-0.56/19 6} 27. Qc2 
{-0.53/21 4} Ree8 {-0.46/19 7} 28. Re7 {-0.67/21 6} Rf8 {-0.41/20 13} 29. Qf5 { 
-0.62/21 3} Qxf5 {-0.42/20 8 (Qb6)} 30. gxf5 {-0.47/20 3} Rc2 {-0.35/22 5} 31. 
Bg2 {-0.53/22 3} Rb8 {-0.40/23 5} 32. Rb1 {-0.53/23 13} Kf8 {-0.32/23 20} 33. 
Ra7 {-0.74/22 11} Nc4 {-0.37/22 12} 34. Rb7 {-0.49/21 3 (Rxa4)} Rxb7 {-0.50/19 
0} 35. Bxb7 {-0.49/19 0} Ne3 {-0.30/18 7 (Rxe2)} 36. Ba6 {-0.54/19 2} Ke7 {-0. 
24/20 12} 37. Rg1 {-0.43/22 4} Kf6 {-0.22/23 5} 38. Bd3 {-0.42/23 5} Rc7 {-0. 
09/22 39 (Rc5)} 39. b3 {-0.08/18 2 (Rg3)} axb3+ {0.00/19 5} 40. Kxb3 {-0.05/19 
2} Rb7+ {0.00/22 6 (Nd5)} 41. Kc3 {0.00/19 2} h6 {0.00/21 6 (h5)} 42. Kd4 {0. 
00/21 2} Re7 {0.00/22 5} 43. Rg3 {0.00/22 3} Nxf5+ {0.00/23 5} 44. Bxf5 {0.00/ 
20 0} Kxf5 {0.00/22 0} 45. Rxg7 {0.00/23 2} Kf6 {0.00/24 3} 46. Rg2 {0.00/24 2} 
Ra7 {0.00/24 3} 47. Rg3 {0.00/25 2} Ke6 {0.00/26 5} 48. Re3+ {0.00/25 3} Kd7 { 
0.00/26 4} 49. Rb3 {0.00/25 2 (Kc4)} Ra4+ {0.00/24 4 (f5)} 50. Kd5 {0.00/24 1} 
Ra5+ {0.00/26 5} 51. Kc4 {0.00/24 1 (Kd4)} f5 {0.00/24 3 (Re5)} 52. Rf3 {0.00/ 
23 3 (Rc3)} Rc5+ {0.00/24 3 (Kc6)} 53. Kd4 {0.00/24 2} Ra5 {0.00/25 3 (Re5)} 
54. Kc4 {0.00/25 1} h5 {0.00/24 3 (Kc6)} 55. Re3 {0.00/22 2} Kc6 {0.00/24 5} 
56. Kb3 {0.00/23 3 (Kb4)} f4 {0.00/23 3 (Rd5)} 57. Re4 {0.00/22 1 (Rc3+)} Rb5+ 
{0.00/24 3} 58. Kc3 {0.00/23 1 (Ka4)} Rf5 {0.00/24 3} 59. Rc4+ {0.00/23 2} Kb6 
{0.00/25 3 (Kb5)} 60. Rb4+ {0.00/24 2 (Rd4)} Kc7 {0.00/23 4 (Kc6)} 61. Rc4+ { 
0.00/24 2} Kb6 {0.00/27 2} 62. Rb4+ {0.00/26 2 (Rd4)} Kc7 {0.00/27 2 (Kc6)} 63. 
Rc4+ {0.00/25 1} Kb6 {0.00/28 2 Draw accepted} 1/2-1/2 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "2"] 
[White "Houdini 1.03a x64 POPCNT 4_CP"] 
[Black "IvanHoe 9.52b x64"] 
[Result "0-1"] 
[ECO "A00"] 
[Annotator "-0.33;-0.39"] 
[PlyCount "118"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=18.5 plies; 5,530kN/s B=18.8 plies; 5, 
916kN/s} 1. h3 e5 2. c3 d5 3. d4 Nc6 4. Be3 Nf6 {Both last book move} 5. dxe5 { 
-0.33/20 10} Nxe5 {-0.39/20 8} 6. Nd2 {-0.30/22 48} Bd6 {-0.36/20 7} 7. Ngf3 { 
-0.28/22 43 (Qc2)} Nxf3+ {-0.36/20 8 (Ng6)} 8. exf3 {-0.31/21 11} O-O {-0.35/ 
21 12} 9. Bd3 {-0.31/21 11 (Qc2)} Nh5 {-0.39/20 9} 10. Qc2 {-0.26/20 12} Nf4 { 
-0.30/22 24} 11. Bxf4 {-0.23/20 8} Bxf4 {-0.30/20 0} 12. O-O-O {-0.24/21 8} g6 
{-0.42/21 10} 13. g3 {-0.23/21 39 (h4)} Bd6 {-0.39/22 36 (Bh6)} 14. h4 {-0.15/ 
21 9 (Kb1)} Qf6 {-0.30/21 13} 15. h5 {-0.16/21 17} a5 {-0.20/22 71} 16. a4 {-0. 
15/20 8} Re8 {-0.20/21 38} 17. Kb1 {-0.11/19 18} c6 {-0.13/20 30} 18. Rh4 {-0. 
15/20 7 (f4)} Rb8 {-0.15/21 19 (Bc5)} 19. hxg6 {-0.09/19 8 (f4)} hxg6 {-0.14/ 
18 0} 20. Rdh1 {-0.08/20 8 (f4)} Bf8 {-0.21/20 22 (b5)} 21. Rf4 {-0.19/18 8 
(Rh8+)} Qd6 {-0.44/19 5} 22. Nb3 {-0.42/19 30} Bg7 {-0.68/19 9} 23. Rfh4 {-0. 
44/19 8} c5 {-0.69/18 4 (b5)} 24. Qd1 {-0.49/17 9 (Qd2)} Bd7 {-0.84/18 5 (b6)} 
25. Bb5 {-0.69/17 12} Bxb5 {-0.98/18 4} 26. axb5 {-0.68/15 0} Rbd8 {-1.08/20 18 
} 27. Qf1 {-0.98/17 19 (Nc1)} b6 {-1.17/19 5} 28. Qh3 {-1.02/17 13 (Rf4)} Kf8 { 
-1.43/18 5} 29. Nd2 {-0.76/17 5 (Qf1)} g5 {-1.49/19 4} 30. Rh5 {-1.14/18 4} 
Qg6+ {-1.49/19 2} 31. Kc1 {-1.14/16 0} Re2 {-1.49/18 0} 32. Qg4 {-1.40/18 5} f6 
{-1.60/19 4 (Bf6)} 33. Rd1 {-1.74/17 5} d4 {-1.89/20 12} 34. f4 {-1.92/18 7} 
Rxf2 {-2.25/19 11 (Qd3)} 35. f5 {-1.92/16 4} Rxf5 {-2.25/17 0} 36. Nf3 {-2.30/ 
16 4 (Rhh1)} Rfd5 {-2.51/19 3} 37. c4 {-1.88/18 3} Qf5 {-2.68/21 4 (R5d7)} 38. 
Qh3 {-2.58/18 3 (Qxf5)} Qxh3 {-2.73/20 2} 39. Rxh3 {-2.37/17 0} Rf5 {-2.66/22 4 
} 40. g4 {-2.32/20 5} Rf4 {-2.66/20 0} 41. Rg1 {-2.40/20 4} Kf7 {-2.81/22 11} 
42. Kd1 {-2.42/21 8 (Nd2)} d3 {-3.04/20 4 (Kg6)} 43. Nd2 {-2.57/18 5} a4 {-3. 
04/18 0} 44. Rgg3 {-2.76/19 3 (Kc1)} f5 {-3.92/18 3} 45. gxf5 {-3.49/16 4} Bxb2 
{-3.92/16 0} 46. Rh7+ {-4.22/16 3} Kf6 {-4.71/18 7} 47. Rb7 {-4.44/17 3} Bc3 { 
-5.36/17 4 (Rd6)} 48. Rxb6+ {-4.49/17 2} Kxf5 {-5.36/15 0} 49. Rb7 {-5.36/20 27 
} a3 {-5.71/18 4} 50. Rf7+ {-5.57/19 6} Ke6 {-5.71/17 0} 51. Ra7 {-5.72/20 9} 
Bxd2 {-6.31/17 4} 52. Rxa3 {-5.75/20 8} Bc1 {-6.31/16 0 (Bb4)} 53. Raxd3 {-6. 
10/16 2 (Rgxd3)} Rxd3+ {-6.69/17 2} 54. Rxd3 {-5.88/15 0} Rxc4 {-6.69/16 0} 55. 
Ke2 {-6.02/17 3 (Rd8)} Bf4 {-6.96/17 2} 56. b6 {-6.21/17 2 (Rd8)} g4 {-7.88/17 
3 (Be5)} 57. Rd8 {-7.89/19 17 (Rd1)} Rc2+ {-8.81/16 2 (Rb4)} 58. Kd1 {-10.23/ 
19 14 (Ke1)} Rb2 {-7.82/13 0} 59. Rf8 {-10.23/18 2} Be5 {-11.57/17 2 (Ke5)} 0-1 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "3"] 
[White "IvanHoe 9.52b x64"] 
[Black "Houdini 1.03a x64 POPCNT 4_CP"] 
[Result "1-0"] 
[ECO "A31"] 
[Annotator "0.04;0.09"] 
[PlyCount "255"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=20.4 plies; 5,951kN/s B=20.2 plies; 5, 
564kN/s} 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 {Both last book move} 5. Nb5 
{0.04/21 10} d6 {0.09/19 11} 6. Bg5 {0.09/21 13} a6 {0.05/20 17 (Be6)} 7. Bxf6 
{0.20/21 7} gxf6 {0.10/21 10} 8. N5c3 {0.23/22 6} f5 {0.09/21 12} 9. Nd5 {0.16/ 
21 6} Bg7 {0.15/21 9} 10. Nbc3 {0.26/21 8} O-O {0.20/21 13} 11. Qb3 {0.24/21 18 
} e4 {0.17/21 18} 12. e3 {0.22/22 38 (Rd1)} Be6 {0.20/20 8} 13. Rd1 {0.26/21 14 
} Nd7 {0.17/20 10} 14. Qb4 {0.26/21 11 (Be2)} Nc5 {0.21/19 9 (Be5)} 15. Be2 { 
0.31/20 14} Kh8 {0.21/19 12 (Be5)} 16. O-O {0.28/20 7} Be5 {0.23/20 11 (Rg8)} 
17. Nf4 {0.29/19 6 (g3)} Rg8 {0.20/18 10} 18. g3 {0.31/19 6} Bd7 {0.21/19 10} 
19. Rd2 {0.32/20 15} Bc6 {0.23/19 10 (Rc8)} 20. Rfd1 {0.34/18 11} Rb8 {0.24/18 
7 (Qf8)} 21. Qa3 {0.32/19 19 (Bf1)} Ne6 {0.23/18 6} 22. Ncd5 {0.33/19 20} Qg5 { 
0.23/17 11 (Be8)} 23. Bf1 {0.36/18 26 (Qa5)} Rbe8 {0.23/18 7} 24. Bg2 {0.34/18 
15} Qd8 {0.28/18 18 (a5)} 25. b4 {0.42/19 13} Qg5 {0.26/18 6} 26. Qa5 {0.42/18 
3} Qg4 {0.35/19 20 (Qg7)} 27. Qb6 {0.45/18 5 (Bf1)} Qg7 {0.32/18 17} 28. Bf1 { 
0.49/18 4 (Rb1)} Qh6 {0.32/17 8 (Ng5)} 29. Kh1 {0.45/18 17 (Be2)} Qg7 {0.35/17 
13 (Qg5)} 30. Be2 {0.49/19 18 (b5)} Nf8 {0.31/17 5 (Qf8)} 31. Nc7 {0.80/19 3 
(Kg1)} Rc8 {0.64/19 5} 32. b5 {0.77/20 3} Nd7 {0.56/20 7} 33. Qa7 {0.77/18 0} 
Nc5 {0.57/20 5 (axb5)} 34. bxc6 {0.83/20 5} Rxc7 {0.56/18 0} 35. Rxd6 {0.78/21 
6} Nd3 {0.61/20 10} 36. R6xd3 {0.90/20 7} exd3 {0.66/20 4} 37. Nxd3 {0.90/19 0} 
bxc6 {0.61/20 9} 38. Qxa6 {0.93/20 11} Rb8 {0.61/20 5 (Qf6)} 39. Kg2 {0.94/20 
4 (a4)} Bc3 {0.74/20 11 (Qf6)} 40. a4 {0.99/20 9 (Bf3)} Qh6 {0.74/20 8 (Qf6)} 
41. c5 {0.92/19 3 (Rc1)} Qe6 {0.77/20 4} 42. Rc1 {1.06/21 14} Bg7 {0.79/20 4 
(Qf6)} 43. Nf4 {1.05/19 5} Qe8 {0.85/18 5 (Qd7)} 44. a5 {1.07/19 3} Kg8 {0.83/ 
19 5 (Be5)} 45. Nh5 {1.05/19 11 (Qd3)} Rb2 {0.60/19 7 (Kf8)} 46. Kg1 {1.20/18 
3 (Qd3)} Qe5 {0.96/17 4 (Rc8)} 47. Bf1 {1.40/18 4 (Qa8+)} Rb8 {1.14/18 5 (Re7)} 
48. Qd3 {1.48/18 3} Rcc8 {1.09/19 4 (Ra7)} 49. a6 {1.35/19 5} Rd8 {1.12/20 12} 
50. Qc2 {1.48/18 2} Bh8 {1.21/19 4 (Bf8)} 51. Bg2 {1.80/17 2 (Qa4)} Rdc8 {1.46/ 
18 3} 52. Qa4 {1.70/17 2} Qb2 {1.64/20 11} 53. Rd1 {1.75/19 2} Qe2 {1.64/21 3} 
54. Nf4 {1.75/17 0} Rb4 {1.66/22 15} 55. Qxb4 {1.79/19 2} Qxd1+ {1.60/21 0} 56. 
Bf1 {1.79/18 0} Qd7 {1.51/20 3} 57. Nd3 {1.84/20 2} Bf6 {1.51/20 3} 58. Nb2 { 
1.89/20 3 (Qb6)} Bxb2 {1.59/18 2} 59. Qxb2 {1.89/18 0} Ra8 {1.58/19 3} 60. h4 { 
2.05/21 2} h6 {1.59/20 5 (Ra7)} 61. Bc4 {1.97/21 2} Qe7 {1.73/20 2} 62. Qb6 { 
1.97/21 5 (h5)} Qd7 {1.57/17 0} 63. h5 {1.97/22 2 (Kg2)} Qd1+ {1.72/21 3 (Kh7)} 
64. Kh2 {1.97/23 6 (Kg2)} Qd7 {1.68/22 8} 65. Kg2 {1.97/23 2 (Bf1)} Kh7 {1.68/ 
22 3} 66. Be2 {1.97/22 1 (Bf1)} Qc8 {1.68/22 2 (Rc8)} 67. Bf1 {1.97/22 2 (Bd3)} 
Kg8 {1.68/22 2 (Qd7)} 68. Bd3 {1.97/22 2} Qd7 {1.68/23 2} 69. Be2 {1.97/23 3} 
Qc8 {1.67/23 2 (Rc8)} 70. Bc4 {1.97/23 2} Qd7 {1.68/22 5} 71. Kh2 {1.97/23 2 
(Kh1)} Kh7 {1.68/22 2} 72. Be2 {1.97/23 4 (Bf1)} Qc8 {1.68/21 2 (Ra7)} 73. Bd3 
{1.97/23 2 (Qb2)} Kg8 {1.68/22 2} 74. Qb2 {1.97/23 2} Qd7 {1.68/22 2} 75. Bc4 { 
1.97/23 1 (Be2)} Qe7 {1.68/23 2} 76. Kg1 {1.97/22 4} Kh7 {1.68/22 2} 77. Qb6 { 
1.97/22 2} Qd7 {1.68/20 0} 78. Be2 {1.97/23 3 (Qb3)} Qc8 {1.68/21 2 (Ra7)} 79. 
Qb2 {1.97/21 1} Qd7 {1.68/22 2 (Qe8)} 80. Bf1 {1.97/23 2} Kg8 {1.68/22 3 (Ra7)} 
81. Qe5 {1.97/21 2 (Bc4)} Re8 {1.68/21 2 (Kh7)} 82. Qf6 {1.97/20 1} Qe6 {1.68/ 
19 0} 83. Qb2 {2.05/21 1} Qe7 {2.01/23 16} 84. Qb6 {2.05/22 2} Qd7 {2.01/22 1} 
85. Kh2 {2.20/22 2} Rc8 {2.01/21 1} 86. Bg2 {2.19/21 1} Rc7 {2.06/21 1} 87. 
Qb8+ {2.29/22 2} Kh7 {2.19/22 3 (Kg7)} 88. Bh3 {2.51/22 4} Ra7 {2.28/23 2} 89. 
e4 {2.51/23 1} Kg7 {2.28/23 1} 90. exf5 {2.51/23 2} f6 {2.28/22 0} 91. Bf1 {2. 
51/24 1} Qc7 {2.28/20 0} 92. Qe8 {2.52/25 12 (Qb4)} Qf7 {2.28/22 1} 93. Qe4 { 
2.51/25 5} Re7 {2.28/21 1} 94. Qa4 {2.51/24 9 (Qg4+)} Ra7 {2.28/20 1} 95. Qg4+ 
{2.51/23 1} Kh7 {2.28/21 1} 96. Bc4 {2.51/24 2 (Kg1)} Qf8 {2.28/22 1 (Qe8)} 97. 
Kg2 {2.51/21 1 (Qg6+)} Rg7 {2.28/22 1 (Re7)} 98. Qd4 {2.51/20 1} Qe8 {2.28/22 1 
} 99. Kg1 {2.51/20 1 (Bf1)} Qe1+ {2.28/20 1} 100. Bf1 {2.65/21 1} Rf7 {2.28/21 
2} 101. Qg4 {2.68/21 1 (Qd6)} Rg7 {2.28/19 0} 102. Qa4 {2.65/21 1} Qe8 {2.28/ 
20 1} 103. Qd4 {2.51/21 2 (Qa1)} Rf7 {2.28/20 1} 104. Bc4 {2.51/21 1} Rg7 {2. 
28/21 1} 105. Qd6 {2.51/20 1 (Kg2)} Qe4 {2.02/20 2 (Qd7)} 106. Qe6 {2.29/17 1} 
Qd4 {2.19/20 1} 107. Kf1 {2.33/19 0} Qxc5 {2.20/20 1} 108. Kg2 {2.33/17 0} Qd4 
{2.20/22 1} 109. Qxc6 {2.47/20 1} Qd8 {2.20/22 1} 110. Be2 {2.47/21 1 (Qe6)} 
Qd4 {2.20/22 1} 111. Bf3 {2.48/21 1 (Qe6)} Rd7 {2.20/22 1 (Qd8)} 112. Qe6 {2. 
48/22 1} Rg7 {2.20/23 1} 113. Bb7 {2.48/22 1} Qb2 {2.20/22 1} 114. Bd5 {2.48/ 
21 1 (Bc6)} Qb8 {2.20/22 1} 115. Bb7 {3.35/19 1 (Bf3)} Qd8 {3.35/18 1} 116. Qe3 
{3.35/17 0} Qa5 {3.35/18 1} 117. Qd4 {3.45/20 1} Rf7 {3.35/17 0} 118. Qd6 {3. 
97/20 1} Qb5 {3.61/19 1} 119. Qe6 {3.97/18 0} Rxb7 {3.61/18 0} 120. axb7 {4.75/ 
19 1} Qxb7+ {3.44/16 0} 121. f3 {4.75/18 0} Qb2+ {4.96/21 8 (Qg7)} 122. Kh3 { 
4.77/20 1} Qa1 {4.42/19 0} 123. Qf7+ {11.41/20 4 (Qe7+)} Kh8 {4.42/1 0} 124. 
Qe8+ {11.41/19 0} Kg7 {5.97/19 1} 125. Qg6+ {11.87/21 5} Kf8 {6.96/21 6 (Kh8)} 
126. Qxh6+ {12.14/21 4} Kg8 {7.07/20 2} 127. Qg6+ {11.41/19 0 (Qe3)} Kh8 {8.52/ 
22 5} 128. Qe8+ {12.79/20 0} 1-0 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "4"] 
[White "Houdini 1.03a x64 POPCNT 4_CP"] 
[Black "IvanHoe 9.52b x64"] 
[Result "1/2-1/2"] 
[ECO "A31"] 
[Annotator "0.03;0.05"] 
[PlyCount "254"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=20.8 plies; 5,651kN/s B=20.9 plies; 6, 
054kN/s} 1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 {Both last book move} 5. Nb5 
{0.03/20 13} d6 {0.05/20 10} 6. Bg5 {0.12/21 19} Be6 {0.09/20 6} 7. e3 {0.04/ 
20 26} Qb6 {0.09/22 46} 8. Bxf6 {0.04/19 8} gxf6 {0.09/20 0} 9. a4 {0.07/20 9} 
f5 {0.11/21 11 (a6)} 10. a5 {0.11/19 10} Qd8 {0.19/20 24 (Qc5)} 11. Be2 {0.24/ 
19 8 (Qf3)} a6 {0.33/20 7} 12. N5c3 {0.24/17 0} Nc6 {0.30/20 8 (Bg7)} 13. Qa4 { 
0.18/19 8} Qg5 {0.31/21 16 (Qh4)} 14. g3 {0.18/20 8} Bg7 {0.30/21 22 (f4)} 15. 
Nd5 {0.28/21 8} O-O {0.45/22 37} 16. Nbc3 {0.27/21 16} e4 {0.41/21 6} 17. O-O { 
0.29/20 7} Rab8 {0.43/20 27 (Rad8)} 18. Rfd1 {0.34/18 8} Be5 {0.43/20 30} 19. 
Rac1 {0.36/18 7 (Rab1)} Kh8 {0.47/18 6 (Qg7)} 20. b4 {0.31/18 12} Ne7 {0.54/17 
4 (Rbd8)} 21. Nxe7 {0.39/18 12 (b5)} Qxe7 {0.47/14 0} 22. Nd5 {0.44/21 39} Qe8 
{0.58/20 13} 23. Qxe8 {0.44/21 9} Rfxe8 {0.58/22 12} 24. Nb6 {0.37/21 8} Kg7 { 
0.56/23 11} 25. Kg2 {0.36/21 6} Bb2 {0.60/23 45} 26. Rc2 {0.37/20 5} Bf6 {0.60/ 
23 6 (Be5)} 27. Rdd2 {0.36/20 13} Red8 {0.56/22 26 (Kg6)} 28. f3 {0.38/20 18 
(Rc1)} Rh8 {0.55/20 4 (h5)} 29. Nd5 {0.40/20 6} exf3+ {0.55/21 4} 30. Bxf3 {0. 
36/22 7} Be5 {0.55/21 4} 31. Bh5 {0.36/21 15} Rbc8 {0.55/22 15} 32. Rd1 {0.36/ 
21 4} Rc6 {0.56/21 9 (Rhe8)} 33. Bf3 {0.36/21 4} Rcc8 {0.56/21 2 (h6)} 34. Rdc1 
{0.35/20 6} Rhe8 {0.55/21 7 (Rb8)} 35. Rf2 {0.34/20 7 (Nb6)} Kg6 {0.52/21 4 
(Kh6)} 36. Re2 {0.32/20 5 (Rd2)} Kg5 {0.52/20 7} 37. Rec2 {0.33/20 4} Kh6 {0. 
52/20 17 (Red8)} 38. Nb6 {0.33/20 6} Rc7 {0.52/21 3} 39. Rf1 {0.33/20 6 (Rd1)} 
Kg5 {0.50/19 2} 40. Nd5 {0.32/20 4} Rcc8 {0.52/19 2} 41. Nf4 {0.33/19 4} Re7 { 
0.52/20 3 (Rc7)} 42. Rfc1 {0.32/19 5} Rd7 {0.52/21 12} 43. Nd5 {0.32/19 4} Rdd8 
{0.52/20 3} 44. Kf2 {0.32/19 4} Re8 {0.52/20 3} 45. Kg1 {0.32/19 4 (Nf4)} Bh8 { 
0.52/18 1 (Bg7)} 46. c5 {0.42/19 4 (Nf4)} dxc5 {0.59/17 2 (Bxd5)} 47. bxc5 {0. 
45/20 5} Bxd5 {0.74/19 5} 48. Bxd5 {0.44/21 6} Rxe3 {0.69/20 3} 49. Bxb7 {0.43/ 
20 0} Rc7 {0.69/19 0} 50. c6 {0.40/21 5 (Bxa6)} Ra3 {0.80/18 1} 51. Bxa6 {0.42/ 
20 5 (Rd1)} Rxa5 {0.68/18 1} 52. Be2 {0.43/21 3} f4 {0.69/20 9 (Ra1)} 53. h4+ { 
0.44/19 3} Kf5 {0.73/20 4} 54. Rf1 {0.40/19 3} Ra1 {0.73/20 2} 55. Bd3+ {0.38/ 
21 6 (Rxa1)} Kg4 {0.60/20 3} 56. Rxa1 {0.40/22 5} Bxa1 {0.60/18 0} 57. Kg2 {0. 
33/22 10 (gxf4)} Be5 {0.68/18 1} 58. Be2+ {0.32/21 4} Kf5 {0.68/16 0} 59. g4+ { 
0.27/23 13} Ke6 {0.52/19 1} 60. Bb5 {0.27/22 4} Kd6 {0.52/20 1} 61. Rd2+ {0.27/ 
20 4} Kc5 {0.49/21 1} 62. Bd3 {0.26/21 3} h6 {0.48/21 4 (f6)} 63. Be4 {0.26/20 
3} Re7 {0.48/20 1 (f6)} 64. Rc2+ {0.31/20 5 (Kf3)} Kb6 {0.55/19 1} 65. g5 {0. 
27/20 2} hxg5 {0.44/19 1} 66. hxg5 {0.27/18 0} Bd6 {0.43/21 2} 67. Rb2+ {0.26/ 
21 2 (Kf3)} Kc5 {0.43/22 1} 68. Kf3 {0.26/21 2} Re5 {0.41/22 2} 69. Kxf4 {0.25/ 
21 2} Re6+ {0.41/21 1} 70. Kf3 {0.24/22 2} Re5 {0.41/21 1} 71. Rg2 {0.23/21 2 
(Ra2)} Kb6 {0.41/21 1} 72. Rd2 {0.23/22 2 (Rg4)} Kc7 {0.41/21 1} 73. Rd5 {0.22/ 
22 2} Rxd5 {0.41/20 1} 74. Bxd5 {0.21/20 0} Bb4 {0.41/21 1 (Be7)} 75. Kg4 {0. 
20/21 2 (Ke4)} Bd2 {0.41/21 1 (Ba5)} 76. Bf3 {0.20/23 3 (Kf5)} Bb4 {0.41/21 1 
(Kd6)} 77. Kf5 {0.20/23 2} Kd6 {0.41/21 1 (Bc3)} 78. Kf6 {0.20/23 2} Bd2 {0.41/ 
19 0} 79. Bd5 {0.20/24 2 (Bg2)} Be3 {0.41/21 1 (Kc7)} 80. Be4 {0.20/24 2} Bc1 { 
0.41/22 1 (Kc7)} 81. Bg2 {0.20/25 2 (Kf5)} Be3 {0.41/22 1 (Kc7)} 82. Bd5 {0.20/ 
25 2 (Kf5)} Bc1 {0.41/23 1 (Bd2)} 83. Be4 {0.20/25 2 (Kf5)} Be3 {0.41/24 2 
(Kc7)} 84. Bg2 {0.20/25 2 (Kf5)} Kc7 {0.41/24 1 (Bc1)} 85. Bf3 {0.20/25 2 (Kf5) 
} Bc1 {0.41/23 1 (Bd2)} 86. Bh1 {0.20/25 2 (Kf5)} Be3 {0.41/24 1 (Bd2)} 87. Kf5 
{0.20/25 2} Bd4 {0.41/24 1 (Bd2)} 88. Bg2 {0.20/24 2 (Bd5)} Be3 {0.41/24 1 
(Bc3)} 89. Be4 {0.20/24 2 (Bf3)} Bd4 {0.41/24 1 (Bd2)} 90. Kf4 {0.20/24 1 (Bf3) 
} Bh8 {0.41/23 1 (Kd6)} 91. Bf3 {0.20/24 1 (Bd5)} Bd4 {0.41/24 1 (Bc3)} 92. Bh1 
{0.20/25 2 (Bd5)} Bh8 {0.41/24 1 (Bc3)} 93. Bg2 {0.20/25 2 (Be4)} Bg7 {0.41/24 
1 (Bc3)} 94. Kf5 {0.20/25 2} Bc3 {0.41/24 1} 95. Bd5 {0.20/24 1 (Bf3)} Bd2 {0. 
41/23 1 (Bd4)} 96. Be4 {0.20/24 1 (Kf6)} Kd6 {0.41/22 1 (Bc3)} 97. Bg2 {0.20/ 
25 2} Bc1 {0.41/24 1 (Bc3)} 98. Bf3 {0.20/24 1} Bb2 {0.41/24 1 (Kc7)} 99. Bh1 { 
0.20/25 1 (Be4)} Bd4 {0.41/24 1 (Kc7)} 100. Bd5 {0.20/25 2} Be3 {0.41/24 2 
(Bc3)} 101. Bf3 {0.20/19 1} Bd2 {0.41/23 1 (Kc7)} 102. Bh1 {0.20/20 1 (Be4)} 
Be3 {0.41/24 1 (Ba5)} 103. Kg4 {0.19/19 1 (Be4)} Bb6 {0.40/23 3 (Kc7)} 104. Kf4 
{0.19/20 1 (Bf3)} Ke6 {0.40/22 1 (Kc7)} 105. Bg2 {0.19/19 1 (Bf3)} Bc7+ {0.40/ 
21 1 (Kd6)} 106. Kg4 {0.19/20 1} Ba5 {0.40/22 1 (Bd8)} 107. Bh1 {0.19/18 1 
(Kh5)} Ke5 {0.40/22 0 (Bc7)} 108. Kh4 {0.19/20 1 (Kh5)} Bc7 {0.40/22 1 (Kd4)} 
109. Bf3 {0.19/20 1 (Bg2)} Kd6 {0.40/22 0} 110. Kg4 {0.19/21 1 (Bg2)} Ke5 {0. 
40/23 1 (Kc5)} 111. Bg2 {0.12/19 1 (Kh5)} Bb6 {0.40/22 1 (Bd8)} 112. Kh5 {0.12/ 
20 1} Kd6 {0.40/22 0} 113. Bf3 {0.08/19 1 (Be4)} Ba5 {0.40/22 0 (Ke5)} 114. Be4 
{0.08/21 1 (Kg4)} Ke5 {0.40/22 0 (Bd8)} 115. Bh1 {0.06/19 1 (Bg2)} Bd8 {0.40/ 
23 0} 116. Bf3 {0.02/20 1 (Bg2)} Kd6 {0.40/22 0 (Ba5)} 117. Be4 {0.02/18 1 
(Kh6)} Ke5 {0.40/23 0 (Ba5)} 118. Bh1 {0.02/19 1 (Bg2)} Bc7 {0.40/23 0 (Ke6)} 
119. Bg2 {0.02/18 1 (Kh4)} Bb6 {0.40/22 1 (Kd6)} 120. Kg4 {0.02/16 1 (Bf3)} Bd8 
{0.40/22 1} 121. Bf1 {0.00/15 1 (Kh4)} Kd6 {0.05/16 0} 122. Bb5 {0.00/17 1 (c7) 
} Kc7 {0.05/18 0 (Kc5)} 123. Kf5 {0.00/16 1} Kd6 {0.05/17 1 (Be7)} 124. c7 {0. 
00/18 1} Bxc7 {0.05/19 1} 125. g6 {0.00/19 1 (Bc4)} fxg6+ {-0.05/13 0} 126. 
Kxg6 {0.00/21 1} Kc5 {0.00/16 1} 127. Kh7 {0.00/1 0 (Kf5)} Kxb5 {0.00/17 0 
Draw accepted} 1/2-1/2 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "5"] 
[White "IvanHoe 9.52b x64"] 
[Black "Houdini 1.03a x64 POPCNT 4_CP"] 
[Result "1/2-1/2"] 
[ECO "A40"] 
[Annotator "0.38;0.25"] 
[PlyCount "284"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=18.7 plies; 5,907kN/s B=19.8 plies; 5, 
569kN/s} 1. e4 c5 2. c4 g6 3. Nf3 Bg7 4. d4 Qb6 {Both last book move} 5. dxc5 { 
0.38/20 10} Qxc5 {0.25/20 12} 6. Be2 {0.37/21 8} Nc6 {0.33/20 11} 7. O-O {0.32/ 
21 17} d6 {0.26/20 10} 8. Qc2 {0.32/21 28} Nf6 {0.25/20 12} 9. Be3 {0.36/22 13} 
Qa5 {0.20/21 11} 10. Bd2 {0.32/22 24} Qd8 {0.24/21 16} 11. Nc3 {0.28/21 11} O-O 
{0.22/20 21} 12. h3 {0.31/21 29} Nd7 {0.16/19 8} 13. Rad1 {0.29/21 7} Nc5 {0. 
23/20 13} 14. a3 {0.26/20 13} a5 {0.16/20 42} 15. Rfe1 {0.26/19 29 (Be3)} a4 { 
0.12/19 7 (Bd7)} 16. Nd5 {0.10/19 27 (Be3)} Be6 {0.17/20 42 (f5)} 17. Be3 {0. 
25/18 4} Qa5 {0.17/20 6} 18. Bg5 {0.25/19 5} Rfe8 {0.14/19 12 (Qd8)} 19. Bd2 { 
0.18/19 11} Qd8 {0.14/17 0} 20. Bf4 {0.12/20 31} Rc8 {0.10/19 6} 21. Bf1 {0.12/ 
20 15} Nb3 {0.06/21 9 (Qa5)} 22. Be3 {0.15/19 3} Bxd5 {0.07/21 6} 23. Rxd5 {-0. 
18/20 17} Qc7 {-0.11/21 25} 24. Red1 {-0.17/21 25} Nca5 {-0.18/20 6} 25. c5 { 
-0.17/21 4} Qc6 {-0.21/21 54} 26. Qe2 {-0.22/20 29} dxc5 {-0.20/20 6} 27. Ne5 { 
-0.25/21 31} Qe6 {-0.19/20 6 (Bxe5)} 28. f4 {-0.24/18 2 (Nf3)} Nc6 {-0.24/20 12 
} 29. Qc4 {-0.35/19 8 (f5)} Ra8 {-0.28/19 8 (Nxe5)} 30. f5 {-0.51/18 4} Qf6 { 
-0.40/19 11} 31. Nxc6 {-0.41/19 5} bxc6 {-0.43/20 4} 32. Rd7 {-0.41/20 2} Qe5 { 
-0.41/20 15 (gxf5)} 33. Bf2 {-0.50/18 8} Bf6 {-0.42/20 5} 34. R7d3 {-0.64/19 9} 
Qxb2 {-0.47/19 4} 35. Bxc5 {-0.83/19 14} Nxc5 {-0.43/18 4 (Reb8)} 36. Qxc5 {-0. 
58/17 2} Rac8 {-0.49/19 9 (Qb5)} 37. Kh1 {-0.65/18 5} Qe5 {-0.50/19 4} 38. Qb4 
{-0.70/19 10 (Qc4)} Qb5 {-0.54/19 3} 39. Qxb5 {-0.81/20 20} cxb5 {-0.50/17 0} 
40. e5 {-0.89/21 11} Bxe5 {-0.53/19 3} 41. Rd5 {-0.94/20 3} Bb2 {-0.60/19 3} 
42. fxg6 {-0.94/17 1 (Bxb5)} hxg6 {-0.61/19 3} 43. Bxb5 {-0.95/19 1} Rf8 {-0. 
61/18 0} 44. R5d3 {-0.96/20 1} Ra8 {-0.61/21 3} 45. Rb1 {-1.00/20 3} Be5 {-0. 
64/21 4} 46. Rb4 {-1.01/20 3} Ra5 {-0.67/22 4} 47. Rd5 {-0.98/20 2} Bd6 {-0.69/ 
22 3} 48. Rxa4 {-1.01/20 1} Rxa4 {-0.67/22 3} 49. Bxa4 {-1.01/18 0} Ra8 {-0.66/ 
23 6} 50. Rd4 {-1.05/20 2} Kg7 {-0.63/22 3} 51. g4 {-0.98/20 2} Bxa3 {-0.63/22 
5} 52. Kg2 {-0.98/21 3} Bd6 {-0.60/21 4} 53. g5 {-0.98/20 1} Rc8 {-0.60/21 6} 
54. h4 {-0.98/22 2} Rc7 {-0.60/22 2 (Rc3)} 55. Bd1 {-0.97/21 2} Rc3 {-0.60/23 2 
} 56. Rg4 {-0.98/22 3 (Ra4)} Rd3 {-0.60/22 2} 57. Be2 {-0.98/23 2} Ra3 {-0.60/ 
23 2} 58. Re4 {-0.98/23 2} Rg3+ {-0.60/22 2 (Ra2)} 59. Kf2 {-0.97/21 3} Rb3 { 
-0.60/22 2 (Rh3)} 60. Bf3 {-0.98/20 1 (Ra4)} Bc5+ {-0.60/20 2 (Ra3)} 61. Kg3 { 
-0.97/21 1} Ra3 {-0.60/21 2 (Rc3)} 62. Kg2 {-0.97/22 1} Rc3 {-0.60/22 2 (Ra1)} 
63. Re2 {-0.97/21 1 (Ra4)} Rb3 {-0.60/22 2 (Rd3)} 64. Kg3 {-0.97/21 1 (Re4)} 
Ra3 {-0.60/21 2 (Bd6+)} 65. Kg2 {-0.97/22 3 (Re4)} Rc3 {-0.60/23 2 (Bd6)} 66. 
Rd2 {-0.97/22 3 (Re4)} Bd6 {-0.60/20 2} 67. Re2 {-0.97/21 7} Rb3 {-0.60/22 2 
(f5)} 68. Rd2 {-0.97/20 0 (Kf2)} Re3 {-0.60/22 2 (Ra3)} 69. Kf2 {-0.97/20 1 
(Rc2)} Ra3 {-0.60/23 2 (Rc3)} 70. Re2 {-0.98/21 3} Ra4 {-0.60/22 2 (Ra5)} 71. 
Re4 {-0.98/19 1} Bc5+ {-0.60/21 2 (Ra5)} 72. Kg2 {-0.97/20 1 (Kg3)} Ra7 {-0.60/ 
22 2 (Ra2+)} 73. Re2 {-0.97/20 0 (Be2)} Bd6 {-0.60/23 2 (Ra1)} 74. Re3 {-0.98/ 
20 1 (Kf2)} Ra2+ {-0.60/21 2} 75. Re2 {-0.98/21 1} Ra5 {-0.60/22 1 (Ra4)} 76. 
Rd2 {-0.97/20 1 (Kf2)} Ra4 {-0.60/22 2} 77. Kh3 {-0.97/21 1} Ra3 {-0.60/22 1} 
78. Kg4 {-0.97/21 1} Rb3 {-0.60/21 1 (Re3)} 79. Rd4 {-0.97/20 1} Re3 {-0.60/21 
1 (Rc3)} 80. Rd5 {-0.97/20 1 (Rd1)} Rc3 {-0.60/20 1} 81. Rd1 {-0.97/20 0 (Rd4)} 
Bc7 {-0.73/19 1 (Rc4+)} 82. Rd4 {-1.18/19 1} Kg8 {-0.77/20 1} 83. Rd7 {-1.28/ 
19 1 (Rb4)} Kf8 {-0.82/20 2} 84. Rd1 {-1.27/19 0} f5+ {-0.87/20 1} 85. gxf6 { 
-1.27/17 0} exf6 {-0.87/19 0} 86. Rf1 {-1.27/20 0} Be5 {-0.85/21 1 (Kg7)} 87. 
Kh3 {-1.25/19 1} Kg7 {-0.85/22 2} 88. Rf2 {-1.25/19 0 (Kg2)} Kh6 {-0.85/21 1} 
89. Kg2 {-1.31/21 1} Rc4 {-0.85/22 1} 90. Rf1 {-1.47/20 1} Kg7 {-0.89/21 1 
(Rxh4)} 91. Rh1 {-1.30/19 1} Rc2+ {-0.85/19 1} 92. Kf1 {-1.34/19 1} Bg3 {-0.85/ 
19 1} 93. Kg1 {-1.34/18 0 (Be2)} f5 {-0.89/17 1} 94. Rh3 {-1.29/18 1} Be5 {-0. 
85/16 1} 95. Kf1 {-1.32/18 0} Bf6 {-0.80/18 1 (Bd4)} 96. Be2 {-1.28/17 0} Kh6 { 
-0.79/19 1} 97. h5 {-1.04/18 1} Rc1+ {-0.26/21 10} 98. Kg2 {-0.83/18 0} g5 {-0. 
26/21 1} 99. Rd3 {-0.55/18 1} Rc2 {-0.26/21 1 (Rc6)} 100. Kf1 {-0.55/18 0} Rc6 
{-0.26/21 1} 101. Rd5 {-0.55/16 0} f4 {-0.19/21 7} 102. Kg2 {-0.55/18 1 (Bf3)} 
Rc2 {-0.19/17 1 (Rb6)} 103. Kf1 {-0.55/16 0} Rc1+ {-0.18/17 1} 104. Kg2 {-0.44/ 
19 1} Rc6 {-0.18/19 1} 105. Bf3 {-0.44/19 0} Rb6 {-0.18/20 1 (Re6)} 106. Kh3 { 
-0.27/20 1} Re6 {-0.18/21 1 (Be7)} 107. Kg4 {-0.27/20 0} Be7 {-0.18/21 1} 108. 
Ra5 {-0.27/20 1 (Rd4)} Bd8 {-0.14/20 1 (Kh7)} 109. Ra7 {-0.05/20 1 (Ra8)} Re3 { 
-0.14/21 1 (Bf6)} 110. Ra6+ {0.00/19 1} Kh7 {0.00/21 2} 111. h6 {0.00/20 0} Be7 
{0.00/22 1} 112. Bd5 {0.00/20 0 (Rc6)} Bf8 {0.01/17 1 (Rg3+)} 113. Kh5 {0.00/ 
17 0} g4 {0.02/17 1 (Rh3+)} 114. Kxg4 {0.03/15 0 (Ra7+)} Bxh6 {0.00/17 1} 115. 
Kf5 {0.00/17 0 (Bf3)} f3 {0.00/19 1} 116. Ra2 {0.05/17 0} Bf8 {0.00/20 1} 117. 
Kf4 {0.01/17 1 (Rf2)} Re2 {0.00/19 0 (Ra3)} 118. Ra7+ {0.05/15 0 (Kxf3)} Re7 { 
0.01/17 1} 119. Ra2 {0.00/17 1} Kg7 {0.01/16 0 (Re2)} 120. Kxf3 {0.03/14 0} Kf6 
{0.00/17 1} 121. Ra8 {0.01/14 0} Bg7 {0.00/17 2} 122. Kf4 {0.01/14 1} Bh6+ {0. 
00/16 1} 123. Kg4 {0.00/15 0} Be3 {0.00/17 1 (Ke5)} 124. Ba2 {0.00/16 1 (Kf3)} 
Ra7 {0.00/18 0} 125. Rf8+ {0.00/16 0} Ke7 {0.00/20 0 (Kg7)} 126. Rf7+ {0.00/14 
0} Kd6 {0.00/21 0} 127. Rf6+ {0.00/14 0 (Rxa7)} Kc5 {0.00/16 0} 128. Rf5+ {0. 
00/15 1 (Be6)} Kd4 {0.00/17 0 (Kb4)} 129. Be6 {0.00/15 0 (Bb3)} Ke4 {0.00/16 0 
(Bh6)} 130. Bd5+ {0.00/16 0 (Rf7)} Kd4 {0.00/19 0} 131. Kf3 {0.00/16 0 (Be6)} 
Ra1 {0.00/17 0 (Ra3)} 132. Be6 {0.00/14 0 (Be4)} Rf1+ {0.00/17 0 (Kd3)} 133. 
Ke2 {0.00/14 0} Rh1 {0.00/19 1 (Rg1)} 134. Kf3 {0.00/14 0} Rh3+ {0.00/18 0} 
135. Kg4 {0.00/16 0} Rh1 {0.00/19 0 (Rh7)} 136. Ba2 {0.00/14 0 (Kf3)} Kd3 {0. 
00/17 0 (Rg1+)} 137. Ra5 {0.00/14 0 (Bd5)} Bb6 {0.00/15 0 (Rg1+)} 138. Ra4 {0. 
00/12 0 (Rh5)} Bd4 {0.00/15 0 (Rg1+)} 139. Bd5 {0.00/14 0} Ra1 {0.00/17 0 
(Rg1+)} 140. Rxa1 {0.00/14 0 (Bc4+)} Bxa1 {0.00/15 0} 141. Kf5 {0.01/16 1} Kd4 
{0.00/1 0 (Kd2)} 142. Kf6 {0.00/16 0} Kxd5+ {0.00/1 0 Draw accepted} 1/2-1/2 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "6"] 
[White "Houdini 1.03a x64 POPCNT 4_CP"] 
[Black "IvanHoe 9.52b x64"] 
[Result "1/2-1/2"] 
[ECO "A40"] 
[Annotator "0.27;0.35"] 
[PlyCount "135"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=22.4 plies; 5,465kN/s B=22.3 plies; 5, 
819kN/s} 1. e4 c5 2. c4 g6 3. Nf3 Bg7 4. d4 Qb6 {Both last book move} 5. dxc5 { 
0.27/20 12} Qxc5 {0.35/19 10} 6. Be2 {0.32/21 21} Nc6 {0.31/21 27} 7. O-O {0. 
27/21 25} d6 {0.36/22 38} 8. h3 {0.22/20 11} Be6 {0.34/22 71} 9. Qb3 {0.15/20 
11 (Be3)} Na5 {0.16/20 6 (Nf6)} 10. Qa4+ {0.12/21 8} Bd7 {0.13/21 5} 11. Qc2 { 
0.08/22 9} Rc8 {0.14/20 5} 12. Nbd2 {0.14/21 14 (Be3)} Qc7 {0.18/20 4} 13. Rb1 
{0.07/20 7} Nc6 {0.05/20 6 (Nf6)} 14. b4 {0.04/20 13} Nf6 {0.08/20 9} 15. Qd3 { 
0.05/19 10 (a3)} O-O {0.01/19 5} 16. Qe3 {0.00/19 8 (Rd1)} e5 {0.00/18 5} 17. 
Bd3 {-0.04/17 9 (Ba3)} Rfe8 {-0.11/18 6 (a5)} 18. Re1 {-0.12/17 7 (Rd1)} a5 { 
-0.19/18 4} 19. a3 {-0.15/19 25 (bxa5)} axb4 {-0.21/18 4 (h6)} 20. axb4 {-0.09/ 
20 6} Ra8 {-0.15/19 4} 21. Rd1 {-0.11/19 14} Ra4 {-0.13/21 49} 22. b5 {-0.08/ 
19 8} Nd4 {-0.25/20 7} 23. Nxd4 {-0.12/20 6} exd4 {-0.25/18 0} 24. Qg3 {-0.13/ 
21 17} Be6 {-0.35/19 6} 25. Bb2 {-0.18/20 7} Nd7 {-0.16/19 4} 26. Nf3 {-0.13/ 
20 10 (Nb3)} Bxc4 {-0.33/19 14 (Qc5)} 27. Rbc1 {-0.17/19 6} Ne5 {-0.21/20 5} 
28. Nxe5 {-0.17/20 5} Bxe5 {-0.22/21 5} 29. f4 {-0.22/20 14} Bf6 {-0.23/21 18} 
30. Qf2 {-0.19/19 5 (Kh2)} Qc5 {-0.14/21 13} 31. b6 {-0.12/20 5} Bg7 {-0.22/20 
6 (Rea8)} 32. Kh2 {-0.26/18 5} d5 {-0.33/20 10} 33. Bxc4 {-0.30/19 5} Rxc4 {-0. 
33/21 3} 34. Rxc4 {-0.25/21 7} Qxc4 {-0.27/22 8} 35. e5 {-0.20/21 5} d3 {-0.34/ 
22 6} 36. Qe3 {-0.11/21 7 (Qd4)} Bh6 {-0.28/21 3} 37. Bd4 {-0.11/19 0} f6 {-0. 
13/20 4} 38. e6 {-0.07/20 4} Qc8 {-0.22/21 5 (Qc6)} 39. Bxf6 {-0.08/21 6} Qxe6 
{-0.14/22 3} 40. Qxe6+ {-0.08/20 0} Rxe6 {-0.14/21 0} 41. Be5 {-0.07/24 4} d2 { 
-0.17/23 10} 42. g4 {-0.07/25 11 (Kg3)} Kf7 {-0.15/22 4} 43. Kg2 {-0.09/24 24} 
Ke7 {-0.20/22 2} 44. Kf2 {-0.08/24 7 (Bc7)} Kd7 {-0.19/22 10} 45. h4 {-0.10/23 
7} Bf8 {-0.21/22 3} 46. Rxd2 {-0.11/23 9} Bc5+ {-0.24/22 2} 47. Kf3 {-0.11/23 3 
} Kc6 {-0.19/23 12} 48. Rh2 {-0.11/23 5 (Re2)} Kxb6 {-0.18/23 8 (Bxb6)} 49. h5 
{-0.11/22 4} Kc6 {-0.23/23 4 (Kb5)} 50. g5 {-0.11/22 5 (hxg6)} b6 {-0.23/23 7 
(Re7)} 51. hxg6 {-0.02/22 3 (Rh1)} hxg6 {-0.23/21 3} 52. Rh1 {-0.02/22 3 (Rh7)} 
Be7 {-0.23/21 6} 53. Bb2 {-0.02/21 3 (Rc1+)} Kb5 {-0.23/19 2 (Kd7)} 54. f5 {0. 
00/21 3 (Rc1)} gxf5 {-0.09/19 3} 55. Kf4 {0.00/22 3} Rg6 {-0.05/21 2} 56. Rg1 { 
0.00/23 3 (Rh5)} Kc4 {-0.05/22 2} 57. Kxf5 {0.00/24 3} Rxg5+ {0.00/24 2} 58. 
Rxg5 {0.00/23 0} Bxg5 {0.00/23 0} 59. Kxg5 {0.00/21 0} Kb3 {0.00/28 2 (Kd3)} 
60. Bd4 {0.00/28 3} b5 {0.00/29 2} 61. Kf4 {0.00/30 3} b4 {0.00/30 2} 62. Ke5 { 
0.00/31 2 (Kf5)} Kc4 {0.00/31 1} 63. Bb2 {0.00/32 3 (Bf2)} b3 {0.00/31 2 (Kc5)} 
64. Ba1 {0.00/36 2 (Bd4)} Kc5 {0.00/32 2 (d4)} 65. Bd4+ {0.00/34 3 (Bc3)} Kc4 { 
0.00/34 2 (Kb5)} 66. Ba1 {0.00/38 3} Kc5 {0.00/37 1 (d4)} 67. Bd4+ {0.00/37 2 
(Bc3)} Kc4 {0.00/36 2 (Kb5)} 68. Ba1 {0.00/40 4 Draw accepted} 1/2-1/2 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "7"] 
[White "IvanHoe 9.52b x64"] 
[Black "Houdini 1.03a x64 POPCNT 4_CP"] 
[Result "1/2-1/2"] 
[ECO "A43"] 
[Annotator "0.38;0.27"] 
[PlyCount "113"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=20.8 plies; 6,063kN/s B=21.0 plies; 5, 
623kN/s} 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. Nf3 Bg7 {Both last book move} 5. Be2 { 
0.38/19 6} O-O {0.27/20 12} 6. O-O {0.35/20 10} c5 {0.26/19 16 (Nc6)} 7. d5 { 
0.30/19 13 (dxc5)} e6 {0.25/18 15 (Bg4)} 8. Bc4 {0.38/20 28 (Bf4)} Na6 {0.26/ 
18 16 (exd5)} 9. dxe6 {0.41/18 6 (Bg5)} Bxe6 {0.25/19 9} 10. Bxe6 {0.29/19 11} 
fxe6 {0.25/18 0} 11. Bg5 {0.42/20 12} Qb6 {0.28/20 14} 12. Rb1 {0.42/20 14} Nc7 
{0.28/19 16 (Rad8)} 13. e5 {0.45/19 11} dxe5 {0.29/20 11} 14. Nxe5 {0.38/20 7} 
Rad8 {0.34/21 13} 15. Qe2 {0.50/21 22} Ncd5 {0.34/20 7} 16. Ne4 {0.52/21 25} 
Qc7 {0.38/20 7} 17. Nc4 {0.53/20 16 (Nf3)} b5 {0.35/18 11 (Kh8)} 18. Nxf6+ {0. 
52/22 37} Nxf6 {0.32/21 22} 19. Qxe6+ {0.52/23 57 (Na3)} Kh8 {0.36/21 11} 20. 
Na3 {0.45/20 5} a6 {0.27/20 32 (Rb8)} 21. c3 {0.45/18 12} Rd6 {0.21/19 7} 22. 
Qe5 {0.45/20 19 (Qe3)} Qd7 {0.24/18 6} 23. Rbe1 {0.32/21 24 (f3)} Rd5 {0.22/19 
7} 24. Qg3 {0.17/21 32} Qf5 {0.16/20 10 (Ng4)} 25. Bxf6 {0.30/20 6} Bxf6 {0.17/ 
20 6} 26. Nb1 {0.30/20 4} b4 {0.17/19 8 (c4)} 27. Qe3 {0.37/19 8} Re5 {0.20/19 
6} 28. Qc1 {0.29/19 9} Rfe8 {0.21/18 12 (Rxe1)} 29. Rxe5 {0.30/20 13} Qxe5 {0. 
16/19 11} 30. cxb4 {0.27/20 11 (a3)} cxb4 {0.16/20 7} 31. b3 {0.27/20 4} Kg7 { 
0.16/20 6 (a5)} 32. Qc6 {0.27/20 2} a5 {0.08/22 8 (Qe2)} 33. Nd2 {0.27/20 3} 
Re6 {0.08/23 6} 34. Qc8 {0.27/21 2} Re8 {0.08/24 7} 35. Qa6 {0.27/21 4 (Qb7+)} 
Re6 {0.08/22 4 (Qe2)} 36. Qa8 {0.27/22 7 (Qb7+)} Re8 {0.08/22 4 (Qe2)} 37. Qf3 
{0.27/22 3 (Qb7+)} Qe2 {0.08/23 5} 38. Qc6 {0.27/22 2 (Qd5)} Re7 {0.08/23 5 
(Re6)} 39. Qd6 {0.27/21 3} Re6 {0.08/23 4 (Rf7)} 40. Qd5 {0.05/22 6} Re5 {0.07/ 
24 6 (Re7)} 41. Qd6 {0.00/23 2 (Qd4)} Re6 {0.08/24 4} 42. Qc7+ {0.00/22 2 (Qd5) 
} Re7 {0.00/23 5} 43. Qf4 {0.00/23 3 (Qd8)} Be5 {0.00/21 4} 44. Qg5 {0.00/23 3} 
Bf6 {0.00/22 4} 45. Qd5 {0.00/22 2 (Qf4)} Bc3 {0.00/21 4} 46. Nf3 {0.00/20 0} 
Qxa2 {0.00/20 0} 47. Nd4 {0.00/22 5} Qd2 {0.00/21 5} 48. Qd8 {0.00/22 2} Re1 { 
0.00/22 3} 49. Qd7+ {0.00/20 0} Kf6 {0.00/23 12 (Kh8)} 50. Qd6+ {0.00/21 1 
(Qc6+)} Kg7 {0.00/23 6 (Kf7)} 51. Ne6+ {0.00/20 1} Kf6 {0.00/23 4} 52. Nd4+ { 
0.00/21 1} Kf7 {0.08/24 4} 53. Qd7+ {0.00/22 1} Kg8 {0.00/25 9} 54. Qd5+ {0.00/ 
23 2 (Qd8+)} Kg7 {0.00/24 3 (Kh8)} 55. Qd7+ {0.00/23 1} Kh6 {0.00/24 4 (Kh8)} 
56. Qh3+ {0.00/22 2} Kg7 {0.00/23 0} 57. Qd7+ {0.00/21 0 Draw accepted} 1/2-1/2 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "8"] 
[White "Houdini 1.03a x64 POPCNT 4_CP"] 
[Black "IvanHoe 9.52b x64"] 
[Result "1/2-1/2"] 
[ECO "B08"] 
[Annotator "0.25;0.32"] 
[PlyCount "97"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=20.9 plies; 5,722kN/s B=20.8 plies; 6, 
235kN/s} 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. Nf3 Bg7 {Both last book move} 5. Bd3 { 
0.25/20 32} O-O {0.32/20 8} 6. O-O {0.22/20 13} Nc6 {0.28/20 10} 7. h3 {0.17/ 
20 9 (d5)} e5 {0.21/20 7} 8. dxe5 {0.15/20 11} Nxe5 {0.20/20 9} 9. Nxe5 {0.17/ 
20 11} dxe5 {0.20/18 0} 10. Qf3 {0.16/21 17} c6 {0.18/21 23 (Qe7)} 11. Bg5 {0. 
16/20 8 (a4)} Qe7 {0.17/21 34} 12. Rfd1 {0.15/20 27 (Rad1)} Rd8 {0.17/20 7 (b6) 
} 13. Bc4 {0.15/20 11 (Rd2)} Be6 {0.18/20 7} 14. Bxe6 {0.09/20 11} Qxe6 {0.11/ 
21 15} 15. a3 {0.09/20 10} Qe7 {0.11/21 14} 16. Qe2 {0.06/19 13 (Be3)} Rxd1+ { 
0.10/19 6} 17. Rxd1 {0.09/20 13} Rd8 {0.17/22 22} 18. f3 {0.11/21 17 (Rxd8+)} 
b6 {0.13/21 6 (Bf8)} 19. g3 {0.09/21 6} Rxd1+ {0.16/21 11 (Qc7)} 20. Nxd1 {0. 
09/23 21} Qc7 {0.19/23 21} 21. Kg2 {0.10/22 24 (Nf2)} Ne8 {0.19/23 34} 22. Be3 
{0.11/21 8} Bf8 {0.18/22 9} 23. Nf2 {0.09/20 8} f6 {0.18/22 23 (Nd6)} 24. h4 { 
0.10/20 15 (Qc4+)} Nd6 {0.18/21 4} 25. a4 {0.11/20 7} h5 {0.17/22 6} 26. b3 { 
0.09/20 10 (Qa6)} Kg7 {0.16/20 6} 27. g4 {0.10/20 13 (Qd2)} hxg4 {0.15/19 4} 
28. fxg4 {0.11/19 19} Qd7 {0.21/19 24} 29. Qd1 {0.11/18 4 (Qd2)} Qe6 {0.16/19 
6 (Qe7)} 30. a5 {0.17/18 6 (Qf3)} c5 {0.31/20 13} 31. c4 {0.20/19 4} Be7 {0.26/ 
19 4 (Nb7)} 32. Qd5 {0.05/19 21} Qxd5 {0.05/21 9} 33. cxd5 {0.02/21 8} c4 {0. 
05/23 7 (Nb7)} 34. bxc4 {0.02/20 7} Nxc4 {0.05/22 5} 35. axb6 {0.00/21 4} axb6 
{0.05/20 1} 36. Kf3 {0.00/22 4} b5 {0.05/21 6} 37. Nd3 {0.00/22 8 (Ke2)} b4 { 
0.05/20 3 (f5)} 38. Bc5 {0.00/20 5} Bxc5 {0.05/18 0} 39. Nxc5 {0.00/19 0} f5 { 
0.00/20 4} 40. gxf5 {0.00/20 3} gxf5 {0.00/18 0} 41. exf5 {0.00/20 3} Kf6 {0. 
00/20 2} 42. Ke4 {0.00/21 4} Nd6+ {0.00/18 0} 43. Kd3 {0.00/22 5} Kxf5 {0.00/ 
20 3} 44. h5 {0.00/22 3 (Kc2)} Kg5 {0.00/20 3} 45. Kc2 {0.00/23 4 (Kd2)} Kxh5 { 
0.00/21 5} 46. Kb3 {0.00/24 3 (Nd3)} e4 {0.00/21 2 (Kg5)} 47. Nxe4 {0.00/25 3 
(Kxb4)} Nxe4 {-0.05/26 3} 48. d6 {0.00/35 3 (Kxb4)} Nxd6 {-0.05/30 3} 49. Kxb4 
{0.00/91 3 Draw accepted} 1/2-1/2 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "9"] 
[White "IvanHoe 9.52b x64"] 
[Black "Houdini 1.03a x64 POPCNT 4_CP"] 
[Result "1/2-1/2"] 
[ECO "B12"] 
[Annotator "0.33;0.09"] 
[PlyCount "227"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=25.9 plies; 6,127kN/s B=26.3 plies; 5, 
872kN/s} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 {Both last book move} 5. Bd3 { 
0.33/18 7} Bxd3 {0.09/19 15} 6. Qxd3 {0.24/20 13} c5 {0.10/19 16} 7. c3 {0.17/ 
20 26 (c4)} Ne7 {0.04/19 9 (Nd7)} 8. dxc5 {0.13/20 21 (0-0)} Ng6 {0.04/20 11} 
9. Be3 {0.14/22 29} Nd7 {0.10/19 8} 10. Qb5 {0.00/22 50 (0-0)} Qc7 {0.03/21 14} 
11. b4 {-0.01/21 6} a6 {0.00/22 8} 12. Qe2 {-0.03/21 9} Ngxe5 {0.04/21 17} 13. 
Nbd2 {-0.03/21 4 (Nxe5)} Be7 {-0.03/20 9} 14. O-O {-0.01/21 38 (Bf4)} Nc6 {-0. 
04/19 7 (Nxf3+)} 15. Nb3 {-0.06/20 37 (Nd4)} O-O {-0.04/18 8} 16. Qd2 {-0.10/ 
20 54 (h3)} Bf6 {-0.02/18 10 (b6)} 17. Rad1 {-0.05/20 20 (Bf4)} a5 {-0.12/18 
11 (Rfc8)} 18. Bf4 {-0.11/20 3} Qc8 {0.00/20 7} 19. a3 {-0.12/20 4} Rd8 {-0.10/ 
20 20} 20. Rfe1 {-0.22/19 10 (Bg3)} e5 {-0.20/20 7} 21. Bg5 {-0.12/20 4} Bxg5 { 
-0.15/20 6} 22. Qxg5 {-0.24/20 9} f6 {-0.19/21 19} 23. Qf5 {-0.19/20 13} Nf8 { 
-0.28/21 28} 24. Qxc8 {-0.14/19 2} Raxc8 {-0.26/19 0} 25. Nh4 {-0.32/21 14} g6 
{-0.20/21 9} 26. g3 {-0.39/21 14 (f4)} Kf7 {-0.17/19 14 (Ne6)} 27. Ng2 {-0.36/ 
20 8} Ne6 {-0.25/20 10} 28. Ne3 {-0.24/19 5} Nc7 {-0.27/21 17} 29. f4 {-0.23/ 
19 3 (Kg2)} a4 {-0.23/18 5} 30. Nc1 {-0.24/19 2} d4 {-0.16/20 15} 31. Nc4 {-0. 
31/19 2} Nb5 {-0.22/19 5} 32. fxe5 {-0.36/19 5} Nxe5 {-0.20/20 6} 33. Nxe5+ { 
-0.36/18 0} fxe5 {-0.20/19 0} 34. cxd4 {-0.31/20 6} Nxd4 {-0.23/21 10} 35. Rd3 
{-0.16/21 11} Rd5 {-0.12/21 9} 36. Rc3 {-0.16/20 1} Rcd8 {-0.21/20 6 (Kg7)} 37. 
Ne2 {-0.38/18 1} Nxe2+ {-0.15/22 5} 38. Rxe2 {-0.38/16 0} Rd3 {-0.14/23 18} 39. 
Rec2 {-0.24/20 4} Ke7 {-0.14/21 4 (Ke6)} 40. b5 {-0.25/19 1} Rxc3 {-0.14/21 10 
(h5)} 41. Rxc3 {-0.25/20 2} Rc8 {-0.15/22 3 (Rd1+)} 42. Rc4 {-0.34/20 4} Ke6 { 
-0.12/22 3} 43. c6 {-0.33/21 6} bxc6 {-0.12/20 0} 44. bxc6 {-0.39/23 4} h5 {-0. 
18/21 5} 45. g4 {-0.31/22 3 (Rxa4)} Kd5 {-0.17/23 6} 46. Rxa4 {-0.30/21 1} Rxc6 
{-0.13/24 6} 47. gxh5 {-0.23/22 3} gxh5 {-0.13/25 14} 48. Kf2 {-0.20/24 8} Rc2+ 
{-0.12/23 4} 49. Kg3 {-0.14/24 8} e4 {-0.12/24 4 (Ra2)} 50. h4 {-0.25/22 5} 
Rc3+ {-0.09/22 4 (Ra2)} 51. Kf2 {-0.10/23 2} Rf3+ {-0.08/24 3} 52. Ke2 {-0.06/ 
23 1} Rh3 {-0.04/25 3 (Ke5)} 53. Ra5+ {-0.04/24 2} Kd4 {-0.02/25 6} 54. Ra4+ { 
-0.04/25 2 (Rxh5)} Ke5 {-0.04/25 3} 55. Ra5+ {-0.05/25 2} Kf4 {-0.03/25 4} 56. 
Rxh5 {-0.05/24 0} Re3+ {-0.03/25 3 (Rxa3)} 57. Kd1 {-0.05/25 2 (Kd2)} Rxa3 {-0. 
03/24 3} 58. Rh7 {-0.05/25 2} Ra1+ {-0.03/24 3} 59. Ke2 {-0.05/26 1} Ra2+ {-0. 
02/25 3} 60. Kd1 {-0.05/26 2} Rb2 {-0.02/25 3 (Ke3)} 61. h5 {-0.04/22 1} Rh2 { 
-0.02/26 3 (Kg5)} 62. h6 {-0.04/25 1} Kg5 {-0.02/27 2} 63. Re7 {-0.04/27 1 
(Rh8)} Rxh6 {-0.02/28 2} 64. Rxe4 {-0.04/28 1} Kf5 {-0.02/30 2 (Rh3)} 65. Re2 { 
-0.04/27 1} Rh4 {-0.02/31 2 (Kf4)} 66. Kc2 {-0.04/28 1 (Kd2)} Rh3 {-0.02/31 2} 
67. Kd2 {-0.04/30 1 (Re7)} Rg3 {-0.02/32 2 (Rb3)} 68. Re8 {-0.04/30 1 (Re3)} 
Kf4 {-0.02/33 2} 69. Re2 {-0.04/31 1 (Rd8)} Ra3 {-0.02/31 2 (Rf3)} 70. Re8 {-0. 
04/31 1 (Kc2)} Rb3 {-0.02/33 2 (Rh3)} 71. Ke2 {-0.04/31 1 (Re7)} Rc3 {-0.02/33 
2 (Rh3)} 72. Re7 {-0.04/32 1 (Kd2)} Ra3 {-0.02/34 2 (Rh3)} 73. Re6 {-0.04/28 1 
(Rf7+)} Kf5 {-0.02/34 2} 74. Re8 {-0.04/30 1 (Re3)} Rh3 {-0.02/34 2 (Rb3)} 75. 
Re7 {-0.04/33 2 (Rf8+)} Rg3 {-0.02/35 19 (Kf4)} 76. Re8 {-0.04/33 1} Kf4 {-0. 
02/36 1 (Rb3)} 77. Re7 {-0.04/34 2 (Re6)} Rh3 {-0.02/35 2} 78. Re6 {-0.04/35 1 
(Rf7+)} Ra3 {-0.02/35 3} 79. Re7 {-0.04/34 1} Rc3 {-0.02/35 2 (Rg3)} 80. Re6 { 
-0.04/32 1 (Kd2)} Rh3 {0.00/34 7} 81. Re8 {-0.04/33 1} Rb3 {0.00/32 1} 82. Re7 
{0.00/35 9 (Re6)} Kg5 {0.00/32 2 (Rg3)} 83. Re3 {0.00/34 1} Rb2+ {0.00/31 2 
(Rxe3+)} 84. Kd3 {0.00/31 1 (Kf3)} Kf5 {0.00/30 2 (Rb3+)} 85. Rf3+ {0.00/26 1} 
Ke6 {0.00/30 1} 86. Kc3 {0.00/28 1 (Rf1)} Rb6 {0.00/27 1 (Ra2)} 87. Rg3 {0.00/ 
25 1} Rb7 {0.00/28 1 (Kd5)} 88. Re3+ {0.00/27 1 (Rg5)} Kd6 {0.00/30 2 (Kd5)} 
89. Rd3+ {0.00/28 1 (Re8)} Ke5 {0.00/31 1 (Ke6)} 90. Re3+ {0.00/31 1 (Rd8)} Kf4 
{0.00/24 1 (Kd6)} 91. Re6 {0.00/30 1 (Re2)} Rd7 {0.00/25 2 (Rc7+)} 92. Rc6 {0. 
00/29 1 (Re2)} Ke4 {0.00/22 1 (Re7)} 93. Rc4+ {0.00/30 1 (Re6+)} Ke3 {0.00/25 
1 (Ke5)} 94. Rc8 {0.00/30 1 (Rc6)} Rd3+ {0.00/22 1 (Ke4)} 95. Kb4 {0.00/28 1 
(Kc4)} Rd4+ {0.00/24 1 (Rd2)} 96. Kc3 {0.00/29 1} Rd7 {0.00/22 1 (Rh4)} 97. 
Re8+ {0.00/29 1} Kf3 {0.00/21 1} 98. Kc4 {0.00/30 1} Rc7+ {0.00/21 1 (Rf7)} 99. 
Kd5 {0.00/28 1 (Kd3)} Rf7 {0.00/23 1 (Rc1)} 100. Re6 {0.00/27 1 (Ke6)} Rd7+ { 
0.00/21 1 (Rc7)} 101. Kc6 {0.00/28 1 (Ke5)} Rd4 {0.00/23 1 (Rd2)} 102. Rf6+ { 
0.00/28 1 (Re8)} Ke4 {0.00/22 2} 103. Rh6 {0.00/29 1 (Rg6)} Rd2 {0.00/22 2 
(Kf3)} 104. Re6+ {0.00/28 1 (Rh5)} Kf4 {0.00/24 1 (Kd3)} 105. Re1 {0.00/29 1 
(Rh6)} Rc2+ {0.00/24 1} 106. Kd5 {0.00/31 1} Rd2+ {0.00/27 1} 107. Ke6 {0.00/ 
32 1 (Kc6)} Rh2 {0.00/25 1 (Ra2)} 108. Rf1+ {0.00/30 1 (Kd5)} Ke4 {0.00/31 1} 
109. Kd6 {0.00/33 1 (Re1+)} Rh6+ {0.00/32 1} 110. Kd7 {0.00/38 1 (Kc5)} Rh7+ { 
0.00/43 1} 111. Kd6 {0.00/45 0} Kd4 {0.00/58 1 (Rh6+)} 112. Rd1+ {0.00/47 1} 
Ke3 {0.00/79 1 (Ke4)} 113. Re1+ {0.00/55 1} Kd3 {0.00/99 0} 114. Rf1 {0.00/125 
1 Draw accepted} 1/2-1/2 
 
[Event "IvanHoe vs Houdini, Blitz:10'"] 
[Site "W0111D0001"] 
[Date "2010.08.21"] 
[Round "10"] 
[White "Houdini 1.03a x64 POPCNT 4_CP"] 
[Black "IvanHoe 9.52b x64"] 
[Result "1/2-1/2"] 
[ECO "B12"] 
[Annotator "0.21;0.16"] 
[PlyCount "85"] 
[TimeControl "600"] 
 
{AMD Phenom(tm) II X4 940 Processor W=21.9 plies; 5,574kN/s B=22.2 plies; 5, 
988kN/s} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 {Both last book move} 5. Nc3 { 
0.21/19 11} Nd7 {0.16/21 73 (Bb4)} 6. Bd3 {0.17/19 9 (a3)} Bxd3 {0.14/21 12 
(Ne7)} 7. Qxd3 {0.06/19 9} c5 {0.05/21 39 (Ne7)} 8. O-O {0.05/19 20} cxd4 {0. 
01/19 14 (Ne7)} 9. Qxd4 {0.01/17 14} Ne7 {-0.04/20 15} 10. Qb4 {-0.01/18 20} 
Qb8 {-0.09/20 16 (Qc8)} 11. Re1 {0.00/19 8} a6 {-0.06/20 8} 12. Qg4 {-0.01/19 
34} h5 {-0.11/19 11} 13. Qg3 {-0.14/19 35 (Qg5)} Nf5 {-0.13/19 7 (Qc7)} 14. Qf4 
{-0.11/18 10} g6 {-0.16/19 12} 15. Nd1 {-0.09/17 10 (Bd2)} Bg7 {-0.09/20 9} 16. 
Ne3 {-0.11/20 7} Ne7 {-0.16/20 7} 17. c4 {-0.19/20 15} O-O {-0.13/20 5} 18. 
cxd5 {-0.12/20 24} exd5 {-0.23/20 5} 19. Bd2 {-0.19/20 16} Nxe5 {-0.22/21 8} 
20. Bb4 {-0.25/21 21} d4 {-0.22/21 5 (N5c6)} 21. Bxe7 {-0.19/19 6} dxe3 {-0.22/ 
20 0} 22. Rxe3 {-0.20/20 5} Re8 {-0.23/21 6} 23. Bg5 {-0.20/21 7} Nxf3+ {-0.27/ 
21 12} 24. Qxf3 {-0.19/19 0} Qc7 {-0.32/21 16} 25. g3 {-0.11/20 13} Qa5 {-0.13/ 
21 14} 26. h4 {-0.11/21 5} Rxe3 {-0.12/21 4 (Bxb2)} 27. Bxe3 {-0.07/22 5} Bxb2 
{-0.24/21 4} 28. Rd1 {-0.08/23 12} Rb8 {-0.26/22 5} 29. Bf4 {-0.08/22 5} Rf8 { 
-0.16/22 6 (Be5)} 30. Qb3 {-0.08/21 4} Bg7 {-0.18/22 3} 31. Kg2 {-0.10/22 5} 
Qb5 {0.00/23 5} 32. Qxb5 {-0.08/24 4} axb5 {0.00/21 0} 33. a3 {-0.02/25 4} Ra8 
{0.00/24 4} 34. Be3 {-0.02/25 4} Rxa3 {0.00/24 3} 35. Rd8+ {-0.02/23 0} Kh7 { 
0.00/23 0} 36. Rd7 {-0.02/27 6} b4 {0.00/26 6} 37. Rxf7 {-0.02/27 5} Rd3 {0.00/ 
27 14} 38. Rxb7 {-0.02/27 4} b3 {0.00/25 0} 39. Bc1 {-0.02/26 0} Kg8 {0.00/28 3 
} 40. Rb8+ {-0.02/30 4} Kh7 {0.00/29 3} 41. Rb7 {-0.02/31 4} Kg8 {0.00/31 3} 
42. Rb8+ {-0.02/32 4} Kh7 {0.00/31 3} 43. Rb7 {-0.02/33 4 Draw accepted} 
1/2-1/2

*EGTB off against Houdini

Game data available: http://chess.cygnitec.com/pgn/

OpenChess

OpenChess

Time management: Rybka vs IvanHoe

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Re: Time management: Rybka vs IvanHoe