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Re: Gardner's minichess solved

Posted: Sat Sep 21, 2013 9:10 am
by lostman
We are sorry that we didn't manage to make an exe for scid for windows.

We have this line
3.Qxd3 f4 4.Rb3 d4 5.cxd4 Qc4 6.d5 Bxd5 7.exd5 Qxd5 8.Ne4+ Ke6 9.Nc5+ Kd6 10.Ke2 Kc6 11.Qxd5+ Kxd5 12.Rd3+ Kc6 13.Rd2 e4 14.fxe4 Be5 15.Rd5 Bf6 16.Ne6 f3+ 17.Kxf3 Bc3 18.Ncd4+ Bxd4 19.Nxd4+ )

and in your variation
10. Ke2 Qxd3+ 11.Rxd3+ Kc6 12.Kf2 e4 13.fxe4 Bc3 14.Rd5 Bf6 15.Nb3 f3 16.Ncd4+ Bxd4+ 17.Nxd4+

Re: Gardner's minichess solved

Posted: Sun Sep 22, 2013 10:07 am
by lostman
A new official patch for scid has been mais :
it is in subversion and can be applied with
"svn update"
"patch -p0 <patches/minichess5x5.diff"
"make clean install"


The webpage is http://membres-lig.imag.fr/prost/MiniChessResolution/

Re: Gardner's minichess solved

Posted: Fri Oct 25, 2013 6:02 am
by BB+
There is some sort of typo in this line in the b4 line:
http://membres-lig.imag.fr/prost/MiniCh ... vesb4.html

[ 2.e4 bxc3 3.Bxc3+ Bc5+ 4.d4+ Nxd4 5.Bxd4+ exd4 6.e5+ Qxe5 7.Qxe5 Bxb8 8.fxe2=. b4-+ ]

Black cannot play Bxb8, as Qxe5 is check. Also, b8 is not a legal square...

Some more confusion a couple lines down:
[ 4.e4+ dxe4 5.xxe4+ exd4+ 6.Kxd4+ bxc3+ 7.Kxb6+ Nxd4+-+ ]

Not sure what xxe4 is. And the line after that.
[ 4.Kf4+ exf4+ 5.exf4+ b3 6.Ke3+ Bxf4 7.Qd3+ Bxe3 8.Qxe3 Qe4-+ ]

Well, Kf4 is bogus, but exf4 after it would be really outre... Then comes

[ 4.Kxb4+ Nxb4 5.Qd2+ ]
[ 5.Kxb4+ Rxb4 6.dxe5+ ]
[ 6.Kxb4+ Bxb4-+ ]

I'm not sure how many straight times White can play Kxb4+, particularly if Black twice recaptures the king. Even the first instance seems inapparent. There is also another "4.Kxb4+ Nxb4-+" a bit further down.

[ 4.Kxb4+ Nxb4-+ ]
[ 4.Kd2 b3-+ 5.dxe5 Bxe5 6.Kd4 Nxd4+ 7.exd4 Bxd4 8.Ke3+ Qe5 ]
[ 4.Qd3+ e4+ 5.Qe2+ b3+-+ ]
[ 4.Kb3+ Kf4 5.dxe5+ ]

As far as I can tell, none of the 4 White moves given are legal. Hopefully this is just some parsing error of a typo with SCID, which then skids the whole shebang off the tracks for the rest of the input.