Stockfish Testing Queue

Finished - 37472 tests

15-02-22 Roc WedgeNoBind diff
ELO: -4.48 +-3.0 (95%) LOS: 0.2%
Total: 20000 W: 3851 L: 4109 D: 12040
20000 @ 15+0.05 th 1 Final try, with S(20,20) value.
15-02-23 Roc Apex diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 61287 W: 12291 L: 12229 D: 36767
sprt @ 15+0.05 th 1 Apex: pawns which are supported twice, Give a bonus for any such pawn based on 1/3 of Connected[opposed][0][rank]
15-02-23 sni sorting_moves diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 12250 W: 2415 L: 2488 D: 7347
sprt @ 15+0.05 th 1 Use the evaluation function to help sorting quiet moves if depth >= 8. Does the better move ordering compensate for the time we spend there?
15-02-23 sni sorting_moves diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 3603 W: 661 L: 758 D: 2184
sprt @ 15+0.05 th 1 Take 2: give more importance to the eval.
15-02-23 mco parentsCount diff
ELO: -12.13 +-13.0 (95%) LOS: 3.4%
Total: 974 W: 157 L: 191 D: 626
10000 @ 15+0.05 th 16 Try harder to late join
15-02-23 Roc Apex_V2 diff
LLR: 0.08 (-2.94,2.94) [-1.50,4.50]
Total: 33477 W: 6708 L: 6613 D: 20156
sprt @ 15+0.05 th 1 Last one was 1/4. This is with 1/3, and merged with latest master (which has new Connected values)
15-02-23 Roc Apex_V2 diff
LLR: 2.96 (-2.94,2.94) [-1.50,4.50]
Total: 6549 W: 1333 L: 1209 D: 4007
sprt @ 15+0.05 th 1 1/2
15-02-23 vin blocked_centre diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 59126 W: 11710 L: 11655 D: 35761
sprt @ 15+0.05 th 1 Try increasing the weight of pawn storm against you when your centre is congested, as the blocked centre allows more time for the pawns to roll.
15-02-23 fau Extra_Penalty diff
LLR: -2.95 (-2.94,2.94) [0.00,4.00]
Total: 63744 W: 12511 L: 12439 D: 38794
sprt @ 15+0.05 th 1 Extra penalty for doubled pawns in "a" and "h" columns.
15-02-23 Roc Apex_V2 diff
LLR: 2.96 (-2.94,2.94) [-1.50,4.50]
Total: 17479 W: 3503 L: 3349 D: 10627
sprt @ 15+0.05 th 1 5/8 ?
15-02-23 gli c++11 diff
ELO: -1.82 +-3.0 (95%) LOS: 11.9%
Total: 20000 W: 3916 L: 4021 D: 12063
20000 @ 15+0.05 th 1 Quick regression test, and test windows binaries for c++11
15-02-23 Fis PvInTT diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 32766 W: 6479 L: 6496 D: 19791
sprt @ 15+0.05 th 1 Optimize RootMove::insert_pv_in_tt() to make a copy of the position and skip calls to undo_move() if the PV is longer than 2. This is a non functional change but changes bench for reasons explained here https://groups.google.com/forum/?fromgroups=#!topic/fishcooking/4Phpr8VOmTU Pri -1
15-02-23 sni knight diff
LLR: -1.33 (-2.94,2.94) [-1.50,4.50]
Total: 5431 W: 1014 L: 1047 D: 3370
sprt @ 15+0.05 th 1 Raise penalty for knight attacked by pawn
15-02-23 sni sorting_moves diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 5855 W: 1101 L: 1192 D: 3562
sprt @ 15+0.05 th 1 sort with 4 * history + eval
15-02-23 sni sorting_moves diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 3755 W: 678 L: 774 D: 2303
sprt @ 15+0.05 th 1 sort with 8 * history + eval
15-02-24 Fis phaseDivorceTune diff
67746/50000 iterations
84336/100000 games played
100000 @ 15+0.05 th 1 See what happens if we divorce piece phase values from material values and tune. Pri -1
15-02-24 Roc Apex_V2 diff
LLR: 2.95 (-2.94,2.94) [0.00,6.00]
Total: 18002 W: 3037 L: 2850 D: 12115
sprt @ 60+0.05 th 1 1/2 @ LTC
15-02-24 vin blocked_centre diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 2896 W: 563 L: 663 D: 1670
sprt @ 15+0.05 th 1 Take 2. differentiate between a merely occupied and a blocked centre. Include shelter weakness 'worry' for open centre.
15-02-24 lbr space diff
LLR: -2.95 (-2.94,2.94) [-3.50,0.50]
Total: 6836 W: 1355 L: 1537 D: 3944
sprt @ 15+0.05 th 1 simplified space eval. take 1.
15-02-24 jos rooks diff
LLR: -2.95 (-2.94,2.94) [0.00,4.00]
Total: 71231 W: 14073 L: 13973 D: 43185
sprt @ 15+0.05 th 1 Test some new values for rooks on open or semi-open files. 50k iterations.
15-02-24 lbr space diff
LLR: -2.95 (-2.94,2.94) [-3.50,0.50]
Total: 6143 W: 1202 L: 1382 D: 3559
sprt @ 15+0.05 th 1 simplified space eval. take 2.
15-02-24 vin blocked_centre diff
LLR: -1.47 (-2.94,2.94) [-1.50,4.50]
Total: 3657 W: 690 L: 733 D: 2234
sprt @ 15+0.05 th 1 Memo to self - don't test two things at once. Disable the new shelter weakness code so as to test the impact of the take two centre block code alone.
15-02-24 vin blocked_centre_spsa diff
25322/25000 iterations
50000/50000 games played
50000 @ 15+0.05 th 1 (Re-post after incorrect branch) Since the weighting of ShelterWeakness in the open centre case had a big Elo impact, try tuning this parameter first.
15-02-24 zar doubled_tuning diff
8722/30000 iterations
17949/60000 games played
60000 @ 40+0.05 th 1 SPSA tuning for doubled pawns. And try tuning with contempt=50, priority: -2
15-02-25 jos threatened_byPawn diff
ELO: -0.60 +-2.2 (95%) LOS: 29.9%
Total: 40000 W: 8490 L: 8559 D: 22951
40000 @ 9+0.05 th 1 Check new values for Threat and ThreatenedByPawn arrays.
15-02-25 sni knight diff
LLR: 2.97 (-2.94,2.94) [-1.50,4.50]
Total: 27744 W: 5563 L: 5380 D: 16801
sprt @ 15+0.05 th 1 Try tuned values for knight threatened by pawn
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 Fis phaseDivorce diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 16364 W: 3341 L: 3403 D: 9620
sprt @ 15+0.05 th 1 Separate a pieces material value from it's phase value. Results after tuning.
15-02-26 Roc PawnsKnightsAndBishop diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 13101 W: 2582 L: 2653 D: 7866
sprt @ 15+0.05 th 1 First attempt on https://groups.google.com/forum/?fromgroups=#!topic/fishcooking/jHLBoTEOAzg
15-02-26 sg long_chain_with_apex diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 7542 W: 1473 L: 1559 D: 4510
sprt @ 15+0.05 th 1 Add bonus for inner pawns of a long chain. Based on an idea of Lyudmil Tsvetkov.
15-02-26 Roc PawnsKnightsAndBishop diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 28857 W: 5797 L: 5824 D: 17236
sprt @ 15+0.05 th 1 Take 2. Fixed a bug, and also use a bit more general "blocking" definition.
15-02-26 sg long_chain_with_apex diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 67777 W: 13347 L: 13269 D: 41161
sprt @ 15+0.05 th 1 Add bonus for inner pawns of a long chain. Based on an idea of Lyudmil Tsvetkov. (Take 2)
15-02-26 Roc OppCastle diff
LLR: -2.94 (-2.94,2.94) [-1.50,4.50]
Total: 10671 W: 2054 L: 2131 D: 6486
sprt @ 15+0.05 th 1 2 Weight adjustments when there is opposite castle. Based on quick local SPSA tuning with the salc500.epd suite.
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.
15-02-27 vin blocked_centre_spsa diff
32505/25000 iterations
50000/50000 games played
50000 @ 15+0.05 th 1 Previous tuning produced little movement so hints there is no dependency there. Try the other way around.
15-02-27 vin doubled_passed_pawns diff
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 7434 W: 1575 L: 1447 D: 4412
sprt @ 15+0.05 th 1 Try Mindbreaker's suggestion of a penalty for a doubled passed pawn. The front pawn is scored as passed, but with a small penalty because it will be harder to support.
15-02-27 mco eval1 diff
LLR: -2.95 (-2.94,2.94) [-3.00,1.00]
Total: 94440 W: 18608 L: 18941 D: 56891
sprt @ 15+0.05 th 1 Retire KingOnMany
15-02-27 mco eval2 diff
LLR: -2.95 (-2.94,2.94) [-3.00,1.00]
Total: 10185 W: 1953 L: 2132 D: 6100
sprt @ 15+0.05 th 1 Retire unstoppable pawns
15-02-27 sg long_chain diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 27535 W: 5377 L: 5409 D: 16749
sprt @ 15+0.05 th 1 Add bonus for inner pawns of a long chain. Based on an idea of Lyudmil Tsvetkov. Include new master and normalize long chain stuff like marco did with apex. This changes the bench because the bonus factor is now applied in another order.
15-02-28 jos fianchetto diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 10899 W: 2115 L: 2192 D: 6592
sprt @ 15+0.05 th 1 Retest this old idea, but only for a kingside fianchettoed bishop.
15-02-28 mco tt_iteration diff
LLR: -2.96 (-2.94,2.94) [-1.50,4.50]
Total: 55631 W: 10128 L: 10090 D: 35413
sprt @ 30+0.05 th 1 Increment TT generation upon reaching hashfull (idea from http://www.talkchess.com/forum/viewtopic.php?t=55501). Test with small hash and a bit longer TC to trigger the condition.
15-02-28 jos fianchetto diff
LLR: -2.97 (-2.94,2.94) [-1.50,4.50]
Total: 20851 W: 4087 L: 4137 D: 12627
sprt @ 15+0.05 th 1 Kingside fianchetto, take 2. Additionally check for a defended pawn on g3/g6.
15-02-28 vin doubled_passed_pawns diff
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 14555 W: 2929 L: 2783 D: 8843
sprt @ 15+0.05 th 1 Uh, actually use the correct reweighted values this time instead of greatly increasing the Eg penalty. Final try.
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
15-02-28 zar doubled_tuning diff
33052/30000 iterations
63000/60000 games played
60000 @ 15+0.05 th 1 SPSA tuning for doubled pawns
15-02-28 hxi phase_min diff
LLR: -3.14 (-2.94,2.94) [-1.50,4.50]
Total: 6257 W: 1172 L: 1268 D: 3817
sprt @ 15+0.05 th 1 game phase based on side with less material
15-02-28 jos threatened_byPawn diff
ELO: 0.46 +-2.2 (95%) LOS: 65.8%
Total: 40000 W: 8478 L: 8425 D: 23097
40000 @ 9+0.05 th 1 Measure of fine-tuned values for Threat and ThreatenedByPawn arrays. (Final try.)
15-03-01 zar order diff
ELO: -1.97 +-2.1 (95%) LOS: 3.5%
Total: 41000 W: 8088 L: 8320 D: 24592
40000 @ 15+0.05 th 1 Add psqt weight to sort quites, check value (fixed)
15-03-01 Roc OppCastleV2 diff
LLR: -2.95 (-2.94,2.94) [-1.50,4.50]
Total: 12544 W: 2462 L: 2534 D: 7548
sprt @ 15+0.05 th 1 2 weights have been adjusted when kings are in opposite castle 3x2 corners. Take 2