Simplify away late irreversible move extension #3279
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STC https://tests.stockfishchess.org/tests/view/5fe75c5c3932f79192d398ca LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 196192 W: 18111 L: 18278 D: 159803 Ptnml(0-2): 681, 14097, 68652, 14040, 626 LTC https://tests.stockfishchess.org/tests/view/5fe875e23932f79192d39952 LLR: 2.96 (-2.94,2.94) {-0.75,0.25} Total: 28080 W: 1105 L: 1053 D: 25922 Ptnml(0-2): 13, 904, 12158, 948, 17 bench: 4075243 Late irreversible move extension seems to be useless. Some ELO estimation: https://tests.stockfishchess.org/tests/view/5fe72efb3932f79192d39889
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1 elo is useless. One more elo loss by Unaiic. Great contribution man! Congratz! Making your name shine in the Developers´ list by using tons of simplifications tests. Very nice! |
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I guess an alternative could be to try to tune |
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On the importance of simplifications: I cannot easily find a good post of Marco Costalba on this topic - but the bottom line is that a program full of useless code becomes very quickly unmanageable and difficult to optimize or to improve. Simplifications have always been at the heart of stockfish and they have been key for the success and longevity of the stockfish project. |
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You understand that REMOVAL of it had +1 elo performance, not it introduction, right? |
STC https://tests.stockfishchess.org/tests/view/5fe75c5c3932f79192d398ca
LLR: 2.93 (-2.94,2.94) {-1.25,0.25}
Total: 196192 W: 18111 L: 18278 D: 159803
Ptnml(0-2): 681, 14097, 68652, 14040, 626
LTC https://tests.stockfishchess.org/tests/view/5fe875e23932f79192d39952
LLR: 2.96 (-2.94,2.94) {-0.75,0.25}
Total: 28080 W: 1105 L: 1053 D: 25922
Ptnml(0-2): 13, 904, 12158, 948, 17
bench: 4075243
Late irreversible move extension seems to be useless. Some ELO estimation: https://tests.stockfishchess.org/tests/view/5fe72efb3932f79192d39889