Dev Builds » 20191006-2250

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 06:22:49 584812 4000 66 2619 1315 -262.39 ± 6.9 641 1271 88 0 0 -659.16 ± 36.79
ncm-dbt-02 06:23:25 591425 4004 52 2643 1309 -267.63 ± 6.95 663 1265 74 0 0 -690.06 ± 40.24
ncm-dbt-03 06:22:14 579210 4000 47 2653 1300 -270.27 ± 6.94 669 1269 61 1 0 -718.33 ± 44.49
ncm-dbt-04 06:23:40 568260 4016 51 2626 1339 -264.11 ± 6.8 641 1294 72 1 0 -690.59 ± 40.82
ncm-dbt-05 06:22:19 605550 3980 46 2638 1296 -270.12 ± 6.96 666 1260 64 0 0 -714.66 ± 43.39
20000 262 13179 6559 -266.88 ± 3.09 3280 6359 359 2 0 -693.27 ± 18.03

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
481194 ncm-dbt-02 594063 4 0 4 0 -1161.37 ± 331.6 2 0 0 0 0 -1199.83 ± 312.71
481193 ncm-dbt-04 568077 16 0 11 5 -292.66 ± 121.99 3 5 0 0 0 -1199.83 ± 190.04
481192 ncm-dbt-05 603321 480 7 318 155 -268.11 ± 19.91 79 153 8 0 0 -708.3 ± 146.46
481191 ncm-dbt-01 586097 500 8 331 161 -266.96 ± 20.39 85 153 12 0 0 -643.67 ± 110.29
481190 ncm-dbt-03 579207 500 5 340 155 -281.67 ± 21.05 93 149 8 0 0 -715.51 ± 146.53
481189 ncm-dbt-02 589882 500 5 328 167 -266.96 ± 18.4 78 167 5 0 0 -798.18 ± 231.48
481188 ncm-dbt-04 565430 500 6 327 167 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
481187 ncm-dbt-05 619126 500 6 332 162 -270.57 ± 19.71 84 158 8 0 0 -715.51 ± 146.53
481186 ncm-dbt-02 590010 500 7 343 150 -282.94 ± 22.06 97 142 11 0 0 -659.13 ± 116.77
481185 ncm-dbt-01 585337 500 11 324 165 -255.29 ± 19.19 76 161 13 0 0 -629.41 ± 104.8
481184 ncm-dbt-03 575965 500 8 328 164 -263.41 ± 19.68 81 158 11 0 0 -659.13 ± 116.77
481183 ncm-dbt-04 568832 500 8 323 169 -257.59 ± 18.95 76 163 11 0 0 -659.13 ± 116.77
481182 ncm-dbt-05 606019 500 5 343 152 -285.48 ± 20.9 94 150 6 0 0 -766.17 ± 188.02
481181 ncm-dbt-01 584622 500 7 331 162 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
481180 ncm-dbt-02 592331 500 4 322 174 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
481179 ncm-dbt-04 568156 500 5 317 178 -254.15 ± 17.97 71 170 9 0 0 -694.7 ± 134.18
481178 ncm-dbt-03 578712 500 1 327 172 -270.57 ± 18.22 79 168 3 0 0 -887.58 ± 222.18
481177 ncm-dbt-05 604352 500 8 326 166 -261.07 ± 19.92 81 156 13 0 0 -629.41 ± 104.8
481176 ncm-dbt-01 583866 500 10 324 166 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
481175 ncm-dbt-02 593802 500 6 338 156 -277.92 ± 20.01 88 156 6 0 0 -766.17 ± 188.02
481174 ncm-dbt-03 580738 500 7 347 146 -288.06 ± 21.8 98 144 8 0 0 -715.51 ± 146.53
481173 ncm-dbt-04 568355 500 7 336 157 -274.22 ± 20.15 87 155 8 0 0 -715.51 ± 146.53
481172 ncm-dbt-05 606562 500 4 330 166 -270.57 ± 19.42 83 160 7 0 0 -739.05 ± 163.27
481171 ncm-dbt-01 584706 500 9 333 158 -268.16 ± 20.54 86 152 12 0 0 -643.67 ± 110.29
481170 ncm-dbt-02 590438 500 6 330 164 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
481169 ncm-dbt-03 580240 500 6 338 156 -277.92 ± 20.6 90 152 8 0 0 -715.51 ± 146.53
481168 ncm-dbt-04 568236 500 6 328 166 -265.78 ± 19.69 81 161 7 1 0 -694.74 ± 156.93
481167 ncm-dbt-05 600691 500 2 339 159 -284.21 ± 20.44 92 153 5 0 0 -798.18 ± 231.48
481166 ncm-dbt-01 585759 500 8 330 162 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
481165 ncm-dbt-02 591900 500 6 324 170 -261.07 ± 18.26 75 168 7 0 0 -739.05 ± 163.27
481164 ncm-dbt-03 578877 500 11 318 171 -248.52 ± 18.59 70 168 11 1 0 -629.43 ± 115.29
481163 ncm-dbt-04 569909 500 9 332 159 -266.96 ± 20.39 85 153 12 0 0 -643.67 ± 110.29
481162 ncm-dbt-05 600203 500 7 320 173 -255.29 ± 17.54 70 173 7 0 0 -739.05 ± 163.27
481161 ncm-dbt-01 584453 500 4 319 177 -257.59 ± 17.83 72 171 7 0 0 -739.05 ± 163.27
481160 ncm-dbt-02 589710 500 5 329 166 -268.16 ± 19.13 81 162 7 0 0 -739.05 ± 163.27
481159 ncm-dbt-03 581070 500 2 317 181 -257.59 ± 16.64 68 179 3 0 0 -887.58 ± 222.18
481158 ncm-dbt-04 568514 500 3 326 171 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
481157 ncm-dbt-05 604128 500 7 330 163 -266.96 ± 19.84 83 157 10 0 0 -676.04 ± 124.55
481156 ncm-dbt-01 583656 500 9 327 164 -261.07 ± 19.66 80 158 12 0 0 -643.67 ± 110.29
481155 ncm-dbt-02 590696 500 13 325 162 -254.15 ± 19.82 78 156 16 0 0 -592.27 ± 92.24
481154 ncm-dbt-04 568832 500 7 326 167 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
481153 ncm-dbt-03 578877 500 7 338 155 -276.68 ± 20.74 90 151 9 0 0 -694.7 ± 134.18

Commit

Commit ID 7264540107b7f20d16628ac8615070fe3334f5f5
Author Alain SAVARD
Date 2019-10-06 22:50:54 UTC
Adjust pawn span Run as a simplification a) insures that pawn attacks are always included in the pawn span (this "fixes" the case where some outpost or reachable outpost bonus were awarded on squares controlled by enemy pawns). b) compute the full span only if not "backward" or not "blocked". By looking at "blocked" instead of "opposed", we get a nice simpli- fication and the "new" outpost detection is almost identical, except a few borderline cases on rank 4. passed STC http://tests.stockfishchess.org/tests/view/5d9950730ebc5902b6cefb90 LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 79113 W: 17168 L: 17159 D: 44786 passed LTC http://tests.stockfishchess.org/tests/view/5d99d14e0ebc5902b6cf0692 LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 41286 W: 6819 L: 6731 D: 27736 See https://github.com/official-stockfish/Stockfish/pull/2348 bench: 3812891
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