Stockfish Testing Queue

Finished - 3733 tests

14-08-27 sg lmr diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 63272 W: 10564 L: 10515 D: 42193
sprt @ 15+0.05 th 1 LMR: less reduction if pawn move attacks pieces
14-08-28 sg lmr diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 33183 W: 5478 L: 5502 D: 22203
sprt @ 15+0.05 th 1 LMR: less reduction (half ply) if pawn move attacks pieces
14-09-01 sg king_ring diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 7297 W: 1131 L: 1216 D: 4950
sprt @ 15+0.05 th 1 king safety: extend king ring
14-09-01 sg king_ring diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 9636 W: 1636 L: 1716 D: 6284
sprt @ 15+0.05 th 1 king safety: extend king ring (Take 2)
14-09-03 sg king_ring diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 10898 W: 1816 L: 1893 D: 7189
sprt @ 15+0.05 th 1 king safety: extend king ring. Downscale weight.
14-09-03 sg king_ring diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 10389 W: 1739 L: 1817 D: 6833
sprt @ 15+0.05 th 1 king safety: extend king ring. Downscale weight (for first take)
14-09-09 sg safe_checks diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 6481 W: 1033 L: 1120 D: 4328
sprt @ 15+0.05 th 1 extend safe checks to attacked but well defended pieces
14-09-09 sg ks_simplification diff
LLR: -2.95 (-2.94,2.94) [-3.00,1.00]
Total: 9717 W: 1610 L: 1781 D: 6326
sprt @ 15+0.05 th 1 king safety: remove number of undefended fields
14-09-09 sg ks_simplification diff
LLR: -2.96 (-2.94,2.94) [-3.00,1.00]
Total: 27564 W: 4480 L: 4678 D: 18406
sprt @ 15+0.05 th 1 king safety: set endgame value to zero
14-09-27 sg pruning diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 27311 W: 5664 L: 5694 D: 15953
sprt @ 15+0.05 th 1 exclude killers from pruning
14-09-27 sg pruning diff
LLR: -3.67 (-2.94,2.94) [-1.50,4.50]
Total: 42668 W: 8679 L: 8693 D: 25296
sprt @ 15+0.05 th 1 exclude counter moves from pruning
14-09-27 sg pruning diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 71332 W: 14687 L: 14594 D: 42051
sprt @ 15+0.05 th 1 exclude follow up moves from pruning
14-09-27 sg pruning diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 1200 W: 202 L: 307 D: 691
sprt @ 15+0.05 th 1 exclude moves with history > 0 from pruning
14-09-28 sg cpp diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 2306 W: 454 L: 557 D: 1295
sprt @ 15+0.05 th 1 Doubled bonus for connected passers in endgame
14-09-28 sg cpp diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 1712 W: 329 L: 434 D: 949
sprt @ 15+0.05 th 1 Doubled bonus for connected passers in endgame + little middle game bonus
14-09-28 sg cpp diff
LLR: 2.97 (-2.94,2.94) [-1.50,4.50]
Total: 45708 W: 9502 L: 9265 D: 26941
sprt @ 15+0.05 th 1 Try a more conservative approach. Add only 25% to middle and endgame bonus.
14-09-28 sg cpp diff
LLR: -2.97 (-2.94,2.94) [0.00,6.00]
Total: 15340 W: 2659 L: 2687 D: 9994
sprt @ 60+0.05 th 1 LTC: Try a more conservative approach. Add only 25% to middle and endgame bonus.
14-10-04 sg ks_blocked diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 8408 W: 1679 L: 1763 D: 4966
sprt @ 15+0.05 th 1 Reduce king safety if king side is blocked. Same bench as master because situation is rare, but i get different bench on my 1000 positions file.
14-10-04 sg ks_blocked diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 31706 W: 6392 L: 6411 D: 18903
sprt @ 15+0.05 th 1 Reduce king safety if king side is blocked. Take 2
14-10-07 sg cpp diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 9790 W: 1986 L: 2066 D: 5738
sprt @ 15+0.05 th 1 Add constant middle game bonus for connected passed pawns
14-10-11 sg ks_blocked diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 13268 W: 2638 L: 2708 D: 7922
sprt @ 15+0.05 th 1 Reduce king safety if king side is blocked. Refine blocking conditions and use bigger bonus. Take 3
14-10-20 sg backward1 diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 23182 W: 4745 L: 4787 D: 13650
sprt @ 15+0.05 th 1 Double penalty for very weak backward pawns (stopped by two enemy pawns)
14-10-20 sg backward2 diff
LLR: -0.87 (-2.94,2.94) [-1.50,4.50]
Total: 7324 W: 1475 L: 1486 D: 4363
sprt @ 15+0.05 th 1 less penalty if backward and stopper pawn far away
14-10-25 sg fix_see diff
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 149153 W: 30448 L: 29925 D: 88780
sprt @ 15+0.05 th 1 use in SEE the same piece value for knights and bishops to avoid that an exchange of a biship with a knight is considered a bad capture. This affects the move order because bad captures are sorted at the end of the move list.
14-10-27 sg see_fix2 diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 25452 W: 5213 L: 5249 D: 14990
sprt @ 15+0.05 th 1 use in SEE the same piece value for knights and bishops to avoid that an exchange of a biship with a knight is considered a bad capture. This affects the move order because bad captures are sorted at the end of the move list. Use now standard piece value array (Take 2)
14-10-27 sg fix_see diff
LLR: -2.96 (-2.94,2.94) [0.00,6.00]
Total: 13660 W: 2345 L: 2381 D: 8934
sprt @ 60+0.05 th 1 LTC: use in SEE the same piece value for knights and bishops to avoid that an exchange of a biship with a knight is considered a bad capture. This affects the move order because bad captures are sorted at the end of the move list.
14-11-12 sg move_order diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 16525 W: 3300 L: 3361 D: 9864
sprt @ 15+0.05 th 1 give bonus to underpromotions
14-11-14 sg move_order diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 9432 W: 1910 L: 1991 D: 5531
sprt @ 15+0.05 th 1 add bonus to double checks
14-11-17 sg knight_fork_threats diff
ELO: -0.21 +-3.1 (95%) LOS: 44.7%
Total: 20000 W: 4029 L: 4041 D: 11930
20000 @ 15+0.05 th 1 Add bonus for safe knight fork threats. Parameters tuned by population base incremental learning (see also my post at the forum).
14-11-18 sg spsa_knight_fork_threat diff
19493/20000 iterations
40000/40000 games played
40000 @ 15+0.05 th 1 tune now with spsa starting at my values get from PBIL. This is my first SPSA run, so check if everything is ok please.
14-11-19 sg knight_fork_threats diff
ELO: -2.21 +-3.0 (95%) LOS: 7.8%
Total: 20000 W: 3947 L: 4074 D: 11979
20000 @ 15+0.05 th 1 Use the SPSA tuned values. some parameters show a straight trend and so seems not be converged. So first a elo measure is done.
14-11-19 sg spsa_knight_fork_threat diff
19381/20000 iterations
39888/40000 games played
40000 @ 15+0.05 th 1 The first SPSA tuning attempt seems to give worser result than the initial values. Perhaps with higher resolution (c = 5) we get better results. Prio -1
14-11-20 sg knight_fork_threats diff
ELO: -1.02 +-3.0 (95%) LOS: 25.5%
Total: 20000 W: 3987 L: 4046 D: 11967
20000 @ 15+0.05 th 1 Measure values from second SPSA. Prio -1
14-11-21 sg spsa_knight_fork_threat diff
18999/20000 iterations
40000/40000 games played
40000 @ 15+0.05 th 1 use now a two dimensional table (indexed by piece types) for knight fork bonus
14-11-22 sg knight_fork_threats2 diff
ELO: 0.09 +-3.0 (95%) LOS: 52.2%
Total: 20000 W: 4006 L: 4001 D: 11993
20000 @ 15+0.05 th 1 measure elo of new approach using SPSA tuned values
14-11-22 sg ks_opposite_bishops diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 35906 W: 7096 L: 7104 D: 21706
sprt @ 15+0.05 th 1 opposite bishops favorites the king attacker
14-11-22 sg spsa_move_order_checks diff
19339/20000 iterations
39560/40000 games played
40000 @ 15+0.05 th 1 I have measured that quiet check moves gives a cutoff in 5-8%. On all quiet moves only 2% delivers a cutoff. So checks should be moved up on the move list. My double check patch failed, so i let tune the bonus for the different types of checks (starting at a moderate bonus of 50).
14-11-23 sg move_count_pruning diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 21547 W: 4269 L: 4317 D: 12961
sprt @ 15+0.05 th 1 exclude killers from move count based pruning
14-11-23 sg move_count_pruning diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 36269 W: 7280 L: 7287 D: 21702
sprt @ 15+0.05 th 1 exclude countermoves from move count based pruning
14-11-23 sg move_count_pruning diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 58279 W: 11745 L: 11691 D: 34843
sprt @ 15+0.05 th 1 exclude followupmoves from move count based pruning
14-11-23 sg move_order_checks diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 17514 W: 3508 L: 3567 D: 10439
sprt @ 15+0.05 th 1 use SPSA tuned values for checks move order
14-11-23 sg ks_opposite_bishops diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 5342 W: 1013 L: 1105 D: 3224
sprt @ 15+0.05 th 1 opposite bishops favorites the king attacker (Take 2)
14-11-24 sg ks_opposite_bishops diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 19250 W: 3779 L: 3833 D: 11638
sprt @ 15+0.05 th 1 opposite bishops favorites the king attacker (Take 3). Idea from Rocky640.
14-11-29 sg lmr diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 19180 W: 3834 L: 3888 D: 11458
sprt @ 15+0.05 th 1 less reduction if move has same target square as ttMove
14-12-01 sg king_safety diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 8478 W: 1693 L: 1777 D: 5008
sprt @ 15+0.05 th 1 use quadratic kingAttackersWeight
14-12-03 sg aspiration_window diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 17535 W: 3480 L: 3539 D: 10516
sprt @ 15+0.05 th 1 counter search instability: if fail highs and lows alternate widen the window by don't changing opposite bound
14-12-03 sg aspiration_window diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 11685 W: 2301 L: 2376 D: 7008
sprt @ 15+0.05 th 1 counter search instability: if fail highs and lows alternate widen the window (change opposite bound less) (Take 2)
14-12-03 sg aspiration_window diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 33826 W: 6851 L: 6864 D: 20111
sprt @ 15+0.05 th 1 try opposite. if NOT fail highs and lows alternate use tighter window (Take 3)
14-12-03 sg aspiration_window diff
LLR: 2.96 (-2.94,2.94) [-1.50,4.50]
Total: 47917 W: 9749 L: 9509 D: 28659
sprt @ 15+0.05 th 1 try opposite. if NOT fail highs and lows alternate use tighter window (Take 4)
14-12-04 sg aspiration_window diff
LLR: -2.95 (-2.94,2.94) [0.00,6.00]
Total: 21378 W: 3560 L: 3560 D: 14258
sprt @ 60+0.05 th 1 LTC: try opposite. if NOT fail highs and lows alternate use tighter window (Take 4)