Stockfish Testing Queue

Finished - 4551 tests

15-09-27 sni weights diff
LLR: -2.66 (-2.94,2.94) [0.00,4.00]
Total: 21913 W: 3989 L: 4055 D: 13869
sprt @ 15+0.05 th 1 Increase KingSafety weight
15-09-19 sni king_separation diff
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 110885 W: 16959 L: 16670 D: 77256
sprt @ 60+0.05 th 1 LTC: Try king separation bonus, take 2
15-09-26 sni opposite_bishops diff
LLR: -3.02 (-2.94,2.94) [-3.00,1.00]
Total: 13555 W: 2406 L: 2590 D: 8559
sprt @ 15+0.05 th 1 Simplify opposite bishops, take 2
15-09-26 sni king_safety2 diff
LLR: -1.06 (-2.94,2.94) [0.00,4.00]
Total: 16048 W: 2951 L: 2952 D: 10145
sprt @ 15+0.05 th 1 psqt table for centered king in endgame, take 2
15-09-25 sni opposite_bishops diff
LLR: -2.96 (-2.94,2.94) [-3.00,1.00]
Total: 10873 W: 1941 L: 2118 D: 6814
sprt @ 15+0.05 th 1 Simplification: just double the defender bonus in case of opposite bishops
15-09-24 sni king_safety2 diff
LLR: -1.93 (-2.94,2.94) [0.00,5.00]
Total: 23067 W: 4226 L: 4209 D: 14632
sprt @ 15+0.05 th 1 Alter psqt table for centered king in endgame
15-09-25 sni second_push diff
LLR: -2.96 (-2.94,2.94) [-3.00,1.00]
Total: 3712 W: 636 L: 802 D: 2274
sprt @ 15+0.05 th 1 Suppress second push bonus
15-09-23 sni king_separation2 diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 45255 W: 7114 L: 7064 D: 31077
sprt @ 60+0.05 th 1 LTC: Try king separation bonus, take 3
15-09-23 sni king_separation2 diff
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 22134 W: 4248 L: 4025 D: 13861
sprt @ 15+0.05 th 1 Try king separation bonus, take 3
15-09-23 sni stalemate5 diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 6010 W: 1078 L: 1178 D: 3754
sprt @ 15+0.05 th 1 A strange idea: stalemate positions often result from capture(s) in the last few moves, but can often be avoided by the strong side if he/she doesn't capture the last defensive piece and play a quiet move instead. However, we don't consider quiet moves in qsearch, and a draw stalemate evaluation there may well be pessimistic for the strong side. See what happen if we score a stalemate as a "small win" for the strong side.
15-09-23 sni pawn_asymmetry3 diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 17069 W: 3114 L: 3166 D: 10789
sprt @ 15+0.05 th 1 Try pawn asymmetry, take 4
15-09-22 sni pawn_asymmetry3 diff
LLR: -2.63 (-2.94,2.94) [0.00,5.00]
Total: 38906 W: 7178 L: 7122 D: 24606
sprt @ 15+0.05 th 1 Try pawn asymmetry, take 3
15-09-22 sni pawn_asymmetry3 diff
LLR: -2.40 (-2.94,2.94) [0.00,5.00]
Total: 14238 W: 2547 L: 2588 D: 9103
sprt @ 15+0.05 th 1 Try pawn asymmetry, take 2: asymmetry attacking bonus increases with number of pawns.
15-09-21 sni blocked_pawns diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 14239 W: 2613 L: 2677 D: 8949
sprt @ 15+0.05 th 1 Try blocked pawns malus for initiative.
15-09-21 sni stalemate5 diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 5860 W: 1013 L: 1113 D: 3734
sprt @ 15+0.05 th 1 Take 2: add the case where the king is blocked by its own pawns (Stefan Geschwentner)
15-09-21 sni stalemate5 diff
LLR: -0.44 (-2.94,2.94) [0.00,5.00]
Total: 1137 W: 216 L: 230 D: 691
sprt @ 15+0.05 th 1 Fast stalemate detection: isolated king, and isolated king + pawn(s)
15-09-20 sni second_push diff
LLR: -0.33 (-2.94,2.94) [0.00,5.00]
Total: 1209 W: 210 L: 219 D: 780
sprt @ 15+0.05 th 1 Add some more weight to the proximity of our king to the squares in front of the passed pawn. Inspired by an old test of Kingdefender.
15-09-20 sni pawns_weight diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 16673 W: 3062 L: 3116 D: 10495
sprt @ 15+0.05 th 1 Slightly increase the weight of pawn structure in endgame. Take 3.
15-09-19 sni pinned_mob diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 15546 W: 2838 L: 2897 D: 9811
sprt @ 15+0.05 th 1 Tweak pinned pieces mobility
15-09-19 sni pawns_weight diff
LLR: -1.70 (-2.94,2.94) [0.00,4.00]
Total: 35244 W: 6460 L: 6429 D: 22355
sprt @ 15+0.05 th 1 Slightly increase the weight of pawn structure in endgame. Take 2.
15-09-19 sni pawn_asymmetry2 diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 16782 W: 2989 L: 3043 D: 10750
sprt @ 15+0.05 th 1 Try pawn asymmetry (take 3)
15-09-18 sni pawns_weight diff
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 31223 W: 4687 L: 4746 D: 21790
sprt @ 60+0.05 th 1 LTC: Slightly increase the weight of pawn structure in endgame (resubmitted with [0..4] bounds)
15-09-17 sni king_separation diff
LLR: 2.97 (-2.94,2.94) [0.00,5.00]
Total: 45668 W: 8631 L: 8306 D: 28731
sprt @ 15+0.05 th 1 Try king separation bonus, take 2
15-09-18 sni pawn_asymmetry2 diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 6304 W: 1167 L: 1266 D: 3871
sprt @ 15+0.05 th 1 Try pawn asymmetry. Take 2, weight=20
15-09-17 sni pawn_asymmetry diff
LLR: -1.45 (-2.94,2.94) [0.00,5.00]
Total: 56083 W: 10607 L: 10423 D: 35053
sprt @ 15+0.05 th 1 Try pawn asymmetry
15-09-18 sni pawns_weight diff
LLR: -0.07 (-2.94,2.94) [0.00,5.00]
Total: 494 W: 79 L: 80 D: 335
sprt @ 60+0.05 th 1 LTC: Slightly increase the weight of pawn structure in endgame
15-09-18 sni pawns_weight diff
LLR: 2.98 (-2.94,2.94) [0.00,4.00]
Total: 17623 W: 3328 L: 3109 D: 11186
sprt @ 15+0.05 th 1 Slightly increase the weight of pawn structure in endgame
15-09-17 sni king_separation diff
LLR: 0.31 (-2.94,2.94) [0.00,5.00]
Total: 39538 W: 7370 L: 7186 D: 24982
sprt @ 15+0.05 th 1 Try king separation bonus (with fixed master bench)
15-09-16 sni initiative diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 29668 W: 5400 L: 5398 D: 18870
sprt @ 15+0.05 th 1 Unbalance minors when attacking: take 2, weight=15
15-09-16 sni heavy_pieces diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 6339 W: 1114 L: 1212 D: 4013
sprt @ 15+0.05 th 1 Keep heavy pieces when attacking: take 4, weight=30
15-09-16 sni initiative diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 5755 W: 983 L: 1084 D: 3688
sprt @ 15+0.05 th 1 Unbalance minors when attacking: take 3, weight=25
15-09-16 sni heavy_pieces diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 4402 W: 773 L: 880 D: 2749
sprt @ 15+0.05 th 1 Keep heavy pieces when attacking: take 5, weight=35
15-09-15 sni initiative diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 23787 W: 4292 L: 4316 D: 15179
sprt @ 15+0.05 th 1 Unbalance minors when attacking
15-09-16 sni heavy_pieces diff
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 16927 W: 3112 L: 3165 D: 10650
sprt @ 15+0.05 th 1 Keep heavy pieces when attacking. Take 2, bonus=25
15-09-16 sni heavy_pieces diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 6006 W: 1040 L: 1140 D: 3826
sprt @ 15+0.05 th 1 Keep heavy pieces when attacking. Take 3, bonus=20
15-09-15 sni initiative diff
LLR: -2.94 (-2.94,2.94) [0.00,5.00]
Total: 5626 W: 978 L: 1079 D: 3569
sprt @ 15+0.05 th 1 Keep more heavy pieces
15-09-15 sni initiative diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 16095 W: 2874 L: 2931 D: 10290
sprt @ 15+0.05 th 1 Take 2: use weight=7 for pieces
15-09-15 sni tune_initiative diff
14552/15000 iterations
29908/30000 games played
30000 @ 15+0.05 th 1 Tune pieces linear model in evaluate_initiative() (take 2, start from another point)
15-09-15 sni initiative diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 5351 W: 948 L: 1051 D: 3352
sprt @ 15+0.05 th 1 Also use piece count inside evaluate_initiative() , fixed bench
15-09-15 sni tune_initiative diff
2477/10000 iterations
5189/20000 games played
20000 @ 15+0.05 th 1 Tune pieces linear model in evaluate_initiative()
15-09-14 sni material4 diff
LLR: -3.23 (-2.94,2.94) [0.00,5.00]
Total: 46382 W: 8492 L: 8430 D: 29460
sprt @ 15+0.05 th 1 Endgame pawn scaling: implement Stefan's formula within evaluate_initiative(). Tested against passed patch.
15-09-14 sni material4 diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 8536 W: 1536 L: 1625 D: 5375
sprt @ 15+0.05 th 1 Endgame pawn scaling tuning: capping malus at 25% of score. Tested against passed patch.
15-09-13 sni Tempo diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 14984 W: 2755 L: 2816 D: 9413
sprt @ 15+0.05 th 1 Let the value of Tempo decrease as we approach endgame
15-09-13 sni pawn_mobility2 diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 8204 W: 1513 L: 1603 D: 5088
sprt @ 15+0.05 th 1 Try pawn mobility with a strong bias for the endgame
15-09-11 sni scale_factor diff
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 13165 W: 2450 L: 2519 D: 8196
sprt @ 15+0.05 th 1 Avoid giving a drawish scale factor when the opponent side has some pawn(s) left. Take 1.
15-09-11 sni scale_factor diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 8838 W: 1620 L: 1708 D: 5510
sprt @ 15+0.05 th 1 Avoid giving a drawish scale factor when the opponent side has some pawn(s) left. Take 2.
15-09-10 sni scale_factor diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 22780 W: 4282 L: 4308 D: 14190
sprt @ 15+0.05 th 1 Use half of the scale factor correction to weight the midgame value
15-09-10 sni Tempo diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 5079 W: 896 L: 1000 D: 3183
sprt @ 15+0.05 th 1 Let the value of Tempo increase as we approach endgame
15-09-09 sni material3 diff
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 15857 W: 2939 L: 2996 D: 9922
sprt @ 15+0.05 th 1 Introduce evaluate_initiative()
15-09-09 sni Tempo diff
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 11912 W: 2222 L: 2296 D: 7394
sprt @ 15+0.05 th 1 Let the value of Tempo depend on the number of pawns on the board