Kookaburra v3.00

Discussion about chess-playing software (engines, hosts, opening books, platforms, etc...)
hungtranvn
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Real Name: Tran Hung

Re: Kookaburra v3.00

Post by hungtranvn » Sat Dec 14, 2024 11:57 am

Dear dorsz
Can you briefly explain the play style of Kookaburra v3 as you introduced Blue Marlin. How is the play style of Kookaburra v3 different from Blue Marlin and Swordfish?

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dorsz
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Re: Kookaburra v3.00

Post by dorsz » Sat Dec 14, 2024 12:52 pm

Thank you. Kookaburra does not really have a special style. It is made to be as strong as possible. It should be similar to Stockfish but it does not have plenty of its recent patches. It is more tactical at short time control, at longer they should be similar but the latest Stockfish is probably stronger.
Swordfish is more tactical, Blue Marlin even more aggressive, but also weaker. Both these engines are almost impossible to update now because of abandoning classical evaluation by Stockfish.

Gator007
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Re: Kookaburra v3.00

Post by Gator007 » Sat Dec 14, 2024 12:56 pm

Thanks!

hungtranvn
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Real Name: Tran Hung

Re: Kookaburra v3.00

Post by hungtranvn » Tue Dec 17, 2024 8:46 am

Dear dorsz
Stockfish is currently very strong in tactics, but its strategy is worse, Lyudmil Tsvetkov thinks that there are many strategic moves of Bobby Fischer that Stockfish cannot solve.

Stockfish clones also focus on tactics, I have not seen any stockfish clone that focuses on strategy, maybe only Shashchess + Capabanca but I do not see any outstanding strategy.

If you have a chessengine that specializes in strategy, it is very valuable because it is different from other chessengines
Thanks

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dorsz
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Re: Kookaburra v3.00

Post by dorsz » Tue Dec 17, 2024 5:15 pm

Dear hungtranvn
Yes, Stockfish is very strong tactically. Is it weak strategically? If its goal of the strategy is to win, then the answer is no. I don't know Lyudmil Tsvetkov but I agree with him that there are many strategic positions that Stockfish doesn't understand, and I can add that there are also many tactical positions that it can't solve.

We don't see derivatives of Stockfish improving the strategy noticeably. Probably for two reasons. First, it's just hard to do. And second, Stockfish's strategy is already strong. In fact, you could combine them and say that it's hard to do because Stockfish's strategy is already strong.

I don't believe in a visible strategy in Shashchess + Capabanca. I think it's more marketing. I can't find Shashin theory there and I doubt any engine can use it at all. The focus on strategy in ShashChess is not a chess strategy but a marketing strategy. This strategy works, but it's stupid - my personal opinion. Apart from that, I really like this engine. It has many interesting changes and options and the code looks professional.

I recommend you Lc0, which plays differently than Stockfish, which would mean that it has a different strategy, but is still very strong.

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