Stockfish Testing Queue

Finished - 3944 tests

15-02-25 sni knight diff
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 87571 W: 14747 L: 14314 D: 58510
sprt @ 60+0.05 th 1 LTC: Try tuned values for knight threatened by pawn
15-02-26 sni definition_of_isolation diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 3696 W: 727 L: 825 D: 2144
sprt @ 15+0.05 th 1 Change definition of isolated pawns: we now consider to be isolated any pawn which has no friendly pawn in the three squares on its left or right sides. Divide the Isolated[] penalty by two as there are many more isolated pawns by this definition.
15-02-28 sni sorting_moves4 diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 7506 W: 1440 L: 1526 D: 4540
sprt @ 15+0.05 th 1 It is often good to capture pawns with pieces rather than with pawns to avoid deteriorating the pawn structure, especially in endgame. Since the see() call will delay the bad captures till the end of the move list anyway, it makes sense to try ordering captures by MVV/MVA instead of MVV/LVA.
15-02-28 sni sorting_moves5 diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 5643 W: 1104 L: 1196 D: 3343
sprt @ 15+0.05 th 1 Sorting captures in MVV/LVA/history order
15-03-03 sni king2 diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 8113 W: 1654 L: 1739 D: 4720
sprt @ 15+0.05 th 1 Give less importance to the pawn structure when the kings are separated
15-03-03 sni king2 diff
LLR: -2.94 (-2.94,2.94) [-1.50,4.50]
Total: 11459 W: 2310 L: 2385 D: 6764
sprt @ 15+0.05 th 1 Take 2. Less reduction with king separation.
15-03-03 sni king2 diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 12731 W: 2514 L: 2586 D: 7631
sprt @ 15+0.05 th 1 Take 3. Quadratic reduction.
15-03-05 sni king3 diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 4848 W: 959 L: 1053 D: 2836
sprt @ 15+0.05 th 1 Reward semi-open and open files on opponent king
15-03-07 sni yielding_spinlock diff
ELO: 136.48 +-5.8 (95%) LOS: 100.0%
Total: 6073 W: 2566 L: 296 D: 3211
20000 @ 15+0.05 th 7 Estimate the value of using yielding spinlocks instead of mutexes for 7 threads (test is between C++11 compile with yielding spinlocks and C++11 compile with mutexes)
15-03-07 sni yielding_spinlock diff
ELO: -3.27 +-2.8 (95%) LOS: 1.1%
Total: 20000 W: 3298 L: 3486 D: 13216
20000 @ 15+0.05 th 7 Estimate the value of using yielding spinlocks instead of normal spinlocks for 7 threads (test is between C++11 compile with yielding spinlocks and C++11 compile with normal spinlocks)
15-03-09 sni yielding_spinlock diff
ELO: -15.10 +-13.7 (95%) LOS: 1.5%
Total: 829 W: 121 L: 157 D: 551
20000 @ 15+0.05 th 7 Estimate the value of using yielding spinlocks against current master (test is between C++11 compile with yielding spinlocks and current master without C++11 branch)
15-03-11 sni yielding_spinlock2 diff
ELO: 6.02 +-3.0 (95%) LOS: 100.0%
Total: 16672 W: 2929 L: 2640 D: 11103
20000 @ 15+0.05 th 7 Test yielding spinlocks against current master
15-03-11 sni adaptive_mutex2 diff
ELO: 3.74 +-2.9 (95%) LOS: 99.4%
Total: 18000 W: 3139 L: 2945 D: 11916
20000 @ 15+0.05 th 7 Test adaptive mutexes against current master
15-03-13 sni backward2 diff
LLR: 2.97 (-2.94,2.94) [-1.50,4.50]
Total: 35122 W: 6889 L: 6688 D: 21545
sprt @ 15+0.05 th 1 Advanced pawns cannot be backward
15-03-13 sni backward2 diff
LLR: -2.95 (-2.94,2.94) [0.00,6.00]
Total: 27980 W: 4530 L: 4501 D: 18949
sprt @ 60+0.05 th 1 LTC: Advanced pawns cannot be backward
15-03-15 sni pawn_mobility diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 5824 W: 1106 L: 1197 D: 3521
sprt @ 15+0.05 th 1 Raise value of pawn mobility.
15-03-19 sni sorting_moves9 diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 6167 W: 1174 L: 1264 D: 3729
sprt @ 15+0.05 th 1 Try urgent captures first
15-03-19 sni sorting_moves10 diff
LLR: -2.98 (-2.94,2.94) [-1.50,4.50]
Total: 10354 W: 1936 L: 2015 D: 6403
sprt @ 15+0.05 th 1 Try easy captures first (captures of "hanging" pieces)
15-03-20 sni easy_captures diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 30037 W: 5738 L: 5764 D: 18535
sprt @ 15+0.05 th 1 Try easy captures first. Take 2, sorting bonus = +10
15-03-20 sni easy_captures diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 4402 W: 805 L: 899 D: 2698
sprt @ 15+0.05 th 1 Try easy captures first. Take 3, sorting bonus = +800
15-03-23 sni bishop diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 15195 W: 2842 L: 2907 D: 9446
sprt @ 15+0.05 th 1 Bonus for bishop with pawns on two wings
15-03-25 sni pawn diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 23541 W: 4733 L: 4775 D: 14033
sprt @ 15+0.05 th 1 Don't apply structural penalties to pawns in the enemy camp
15-03-27 sni pawn2 diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 13023 W: 2511 L: 2582 D: 7930
sprt @ 15+0.05 th 1 Tweak backward pawns values
15-03-27 sni quiet diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 9573 W: 1805 L: 1885 D: 5883
sprt @ 15+0.05 th 1 Use pawn attacks to help quiet moves ordering.
15-03-28 sni quiet2 diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 9356 W: 1760 L: 1841 D: 5755
sprt @ 15+0.05 th 1 Use pawn attacks to help quiet moves ordering. Take 2
15-04-02 sni split_depth diff
ELO: 10.43 +-2.7 (95%) LOS: 100.0%
Total: 20000 W: 3390 L: 2790 D: 13820
20000 @ 15+0.05 th 11 Try minimumSplitDepth = 6
15-04-02 sni lever diff
LLR: -3.06 (-2.94,2.94) [-1.50,4.50]
Total: 20476 W: 3894 L: 3949 D: 12633
sprt @ 15+0.05 th 1 Double value for levers if the pawn is supported (take 1)
15-04-02 sni lever diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 35169 W: 6760 L: 6772 D: 21637
sprt @ 15+0.05 th 1 Double value for levers if the pawn is supported (take 2)
15-04-03 sni split_depth diff
ELO: 14.87 +-4.1 (95%) LOS: 100.0%
Total: 8509 W: 1497 L: 1133 D: 5879
20000 @ 15+0.05 th 11 Try minimumSplitDepth = 5
15-04-04 sni split_depth diff
ELO: 13.40 +-4.3 (95%) LOS: 100.0%
Total: 7525 W: 1299 L: 1009 D: 5217
20000 @ 15+0.05 th 11 Try minimumSplitDepth = 4
15-04-04 sni split_depth2 diff
ELO: 0.30 +-2.8 (95%) LOS: 58.2%
Total: 20000 W: 3365 L: 3348 D: 13287
20000 @ 15+0.05 th 4 Check if going from minimumSplitDepth=4 to minimumSplitDepth=5 is a regression for 4 threads
15-04-06 sni delay_split diff
ELO: -0.61 +-2.8 (95%) LOS: 33.3%
Total: 20000 W: 3278 L: 3313 D: 13409
20000 @ 15+0.05 th 4 Delay split decision at CUT nodes
15-04-09 sni supported_lever diff
21702/15000 iterations
35638/30000 games played
30000 @ 15+0.05 th 1 SPSA session for supported levers
15-04-10 sni supported_lever2 diff
LLR: 2.97 (-2.94,2.94) [-1.50,4.50]
Total: 53480 W: 10341 L: 10092 D: 33047
sprt @ 15+0.05 th 1 Use distinct values for supported/unsupported pawn levers
15-04-10 sni supported_lever2 diff
LLR: -0.11 (-2.94,2.94) [-1.50,4.50]
Total: 41393 W: 8016 L: 7909 D: 25468
sprt @ 15+0.05 th 1 Take 2
15-04-10 sni supported_lever2 diff
LLR: -2.95 (-2.94,2.94) [0.00,6.00]
Total: 11996 W: 1891 L: 1937 D: 8168
sprt @ 60+0.05 th 1 LTC: Use distinct values for supported/unsupported pawn levers
15-04-11 sni delay_split2 diff
ELO: -3.66 +-4.3 (95%) LOS: 4.7%
Total: 8361 W: 1343 L: 1431 D: 5587
20000 @ 15+0.05 th 4 Delay split at CUT nodes (except in the last two split levels)
15-04-14 sni supported_lever4 diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 31743 W: 6011 L: 6032 D: 19700
sprt @ 15+0.05 th 1 Supported levers: take 3. 
Add some bonus to the endgame values of levers.
15-04-17 sni backward3 diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 24125 W: 4606 L: 4647 D: 14872
sprt @ 15+0.05 th 1 Backward pawn penalty by opposed flag and rank
15-04-17 sni backward3 diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 16107 W: 3166 L: 3229 D: 9712
sprt @ 15+0.05 th 1 Only consider backward pawns on semi-open files
15-04-18 sni threat_loop diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 4463 W: 797 L: 891 D: 2775
sprt @ 15+0.05 th 1 Introduce accumulate_threats() to be able to test various schemes to score a set of threats (sum, max, etc.)
15-04-20 sni attacks diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 11713 W: 2184 L: 2259 D: 7270
sprt @ 15+0.05 th 1 Tweak king attackers weight (-2)
15-04-22 sni long_chains diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 7945 W: 1475 L: 1560 D: 4910
sprt @ 15+0.05 th 1 Bonus for pawns on the 4th and 5th ranks which are both supported by pawns and supporting other pawns. Take 1: more value for long chains in endgame.
15-04-22 sni long_chains diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 6558 W: 1230 L: 1319 D: 4009
sprt @ 15+0.05 th 1 Take 2: S(25,25)