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Author SHA1 Message Date
SFisGODandStéphane Nicolet 3804effb34 Rook PSQT Tuned 
This patch uses about half the changes of the SPSA tuning run:
http://tests.stockfishchess.org/tests/view/5dba93d30ebc5925b64ed3bf

About a month ago, xoto10's patch raised the mg value of the third rank
center files from -1 to 7 to encourage rook lifts to the third rank. About
three days later, Rocky's patch lowered this value from 7 to 3. This patch
raises that again from 3 to 12 and ends up greater than the original rook
lift patch.

Passed STC:
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 104094 W: 22573 L: 22161 D: 59360
http://tests.stockfishchess.org/tests/view/5dbc77f20ebc5925b64ef1d0

Passed LTC:
LLR: 2.96 (-2.94,2.94) [0.00,3.50]
Total: 168291 W: 27410 L: 26777 D: 114104
http://tests.stockfishchess.org/tests/view/5dbd9f1e0ebc5925b64f0647

Bench: 4707799
 2019-11-05 00:15:23 +01:00
SFisGODandStéphane Nicolet 474d133565 Combo of Parameter Tweaks 
This patch is a combo of the following tweaks:

Complexity parameters
Knight PSQT
Bishop PSQT
King PSQT
Piece Values

Passed STC:
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 56527 W: 12326 L: 12052 D: 32149
http://tests.stockfishchess.org/tests/view/5dbbca3f0ebc5925b64ee6d6

Passed LTC:
LLR: 2.95 (-2.94,2.94) [0.00,3.50]
Total: 64010 W: 10549 L: 10199 D: 43262
http://tests.stockfishchess.org/tests/view/5dbc30dc0ebc5925b64eee0c

Closes https://github.com/official-stockfish/Stockfish/pull/2390

Bench: 4312945
 2019-11-02 21:19:35 +01:00
SFisGODandStéphane Nicolet 0b0b21c608 Tweak kingFlankAttacks factor in kingDanger 
Increase kingFlankAttacks factor in kingDanger from 5/16 to 6/16.

Failed STC:
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 77947 W: 16989 L: 16848 D: 44110
http://tests.stockfishchess.org/tests/view/5d9ac0280ebc5902b6cf63cd

Passed LTC 1:
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 13443 W: 2231 L: 2037 D: 9175
http://tests.stockfishchess.org/tests/view/5d9ac88d0ebc5902b6cf6ffb

Passed LTC 2:
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 23340 W: 3842 L: 3617 D: 15881
http://tests.stockfishchess.org/tests/view/5d9acf7f0ebc5902b6cf7c27

Closes https://github.com/official-stockfish/Stockfish/pull/2349

Bench: 4042155
 2019-10-07 11:14:33 +02:00
SFisGODandMarco Costalba 58bbbd176b Pawn value tweak 
STC:
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 47166 W: 10664 L: 10311 D: 26191
http://tests.stockfishchess.org/tests/view/5c7dfc370ebc5925cffdf830

LTC:
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 35439 W: 6034 L: 5767 D: 23638
http://tests.stockfishchess.org/tests/view/5c7e41020ebc5925cffdfe9b

Bench: 3470519
 2019-03-05 14:54:25 +01:00
SFisGODandStéphane Nicolet 31ac538f96 A combo of parameter tweaks 
Joint work by SFisGOD, xoroshiro and Chess13234.

This combo consists of the following tweaks:
Assorted bonuses and penalties by SFisGOD
Bishop and Rook PSQT by SFisGOD
Tempo Value by xoroshiro
Futility pruning by Chess13234

STC:
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 9005 W: 2082 L: 1882 D: 5041
http://tests.stockfishchess.org/tests/view/5c11628c0ebc5902ba119e90

LTC:
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 44207 W: 7451 L: 7157 D: 29599
http://tests.stockfishchess.org/tests/view/5c1172a40ebc5902ba119fa3

Bench: 3332460
 2018-12-13 13:35:35 +01:00
SFisGODandStéphane Nicolet 3f2ec5b3d5 Tweak Queen PSQT based on tuned values 
STC: (Yellow)
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 63140 W: 13433 L: 13353 D: 36354
http://tests.stockfishchess.org/tests/view/5bed42c90ebc595e0ae37cf5

LTC: (Green)
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 47714 W: 7785 L: 7485 D: 32444
http://tests.stockfishchess.org/tests/view/5bec3b8c0ebc595e0ae36dec

Closes https://github.com/official-stockfish/Stockfish/pull/1816

Bench: 3717396
 2018-11-19 10:50:55 +01:00
SFisGODandStéphane Nicolet 8a9c298dee Rook PSQT Tuned 
Failed STC (Yellow )
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 56302 W: 12007 L: 11953 D: 32342
http://tests.stockfishchess.org/tests/view/5be69d210ebc595e0ae3185b

Passed 1st LTC (Green)
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 8745 W: 1480 L: 1301 D: 5964
http://tests.stockfishchess.org/tests/view/5be682960ebc595e0ae31818

Failed 2nd LTC (Red)
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 19398 W: 3040 L: 3133 D: 13225
http://tests.stockfishchess.org/tests/view/5be69b840ebc595e0ae31856

Passed 3rd LTC (Green)
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 107516 W: 17342 L: 16858 D: 73316
http://tests.stockfishchess.org/tests/view/5bea879a0ebc595e0ae34d80

Closes https://github.com/official-stockfish/Stockfish/pull/1809

How to continue from there?

The values in the rook table now look a bit strange for a human eye
and are hard to explain, maybe it would be nice to simplify them
by hand and see if we can pass another (clean) double green with a
more regular array.

Bench: 3188070
 2018-11-19 10:02:31 +01:00
SFisGODandStephane Nicolet cd732c080b Pawn and Piece Values Tuned at LTC 
Failed STC
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 27487 W: 5846 L: 5903 D: 15738
http://tests.stockfishchess.org/tests/view/5be1d3190ebc595e0ae2e5b8

Passed 1st LTC
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 38503 W: 6270 L: 5999 D: 26234
http://tests.stockfishchess.org/tests/view/5be1f5ef0ebc595e0ae2e750

Passed 2nd LTC
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 34016 W: 5584 L: 5326 D: 23106
http://tests.stockfishchess.org/tests/view/5be2a1970ebc595e0ae2f1b4

This pull request lead to an interesting discussion about testing
methodology for Stockfish:
https://github.com/official-stockfish/Stockfish/pull/1804

Bench: 3647775
 2018-11-08 16:34:10 +01:00
SFisGODandStéphane Nicolet 4a0db9ea3c Combo 
Combo of two parameter tweaks and tuned values for Queen and ThreatByKing.

STC
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 20180 W: 4439 L: 4198 D: 11543
http://tests.stockfishchess.org/tests/view/5bd7b8250ebc595e0ae22e97

LTC
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 86312 W: 14106 L: 13685 D: 58521
http://tests.stockfishchess.org/tests/view/5bd803560ebc595e0ae23213

This combo consists of the following:

Queen Value (tuned values)
Iter: 72056, A: 5000, alpha 0.602000, gamma 0.101000, clipping old, rounding deterministic
param: QueenValueMg, best: 2528.91, start: 2528.00
param: QueenValueEg, best: 2687.12, start: 2698.00

ThreatByKing (tuned values)
Green STC (50.8k games)
http://tests.stockfishchess.org/tests/view/5bd1d5a00ebc595e0ae1cbec
LTC (I stopped this test at 71.2k games. It's likely yellow.)
http://tests.stockfishchess.org/tests/view/5bd263e70ebc595e0ae1d77e

WeakUnopposedPawn (tweak) by xoto (https://github.com/xoto10)
Green STC (102.8k games)
http://tests.stockfishchess.org/tests/view/5bd306bb0ebc595e0ae1e146
Yellow LTC (90.8k games)
http://tests.stockfishchess.org/tests/view/5bd3ea660ebc595e0ae1f16b

aspiTune1 (tweak) by vondele (https://github.com/vondele)
Green STC (125.9k games)
http://tests.stockfishchess.org/tests/view/5bd2ae100ebc595e0ae1dab0
Yellow LTC (107.9k games)
http://tests.stockfishchess.org/tests/view/5bd3eb700ebc595e0ae1f16f

Thank you @31m059 (Mark Tenzer) for helping me! Also, thank you very much
for recognizing my efforts. I genuinely appreciate it.

Bench: 3556672
 2018-11-01 15:39:19 +01:00