Dev Builds » 20190120-1120

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 06:28:49 584806 4008 37 2737 1234 -283.99 ± 7.35 747 1207 49 1 0 -755.92 ± 49.9
ncm-dbt-02 06:29:14 592816 4000 40 2749 1211 -286.29 ± 7.47 762 1185 53 0 0 -748.79 ± 47.9
ncm-dbt-03 06:29:27 577628 4006 54 2730 1222 -280.42 ± 7.3 732 1212 59 0 0 -730.16 ± 45.28
ncm-dbt-04 06:28:18 568753 4000 37 2725 1238 -282.94 ± 7.25 734 1221 44 1 0 -773.71 ± 52.82
ncm-dbt-05 06:28:46 605238 3986 46 2716 1224 -281.58 ± 7.42 739 1193 60 1 0 -720.53 ± 44.88
20000 214 13657 6129 -283.04 ± 3.29 3714 6018 265 3 0 -744.85 ± 21.01

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
482233 ncm-dbt-01 586350 8 0 7 1 -468.91 ± 462.65 3 1 0 0 0 -1199.83 ± 250.99
482232 ncm-dbt-03 580282 6 2 3 1 -58.33 ± 98.71 0 1 2 0 0 -120.24 ± 264.77
482231 ncm-dbt-05 609975 486 2 326 158 -279.58 ± 20.23 86 152 5 0 0 -793.2 ± 231.35
482230 ncm-dbt-02 594758 500 8 342 150 -280.42 ± 21.47 94 146 10 0 0 -676.04 ± 124.55
482229 ncm-dbt-04 569310 500 5 336 159 -276.68 ± 20.16 88 155 7 0 0 -739.05 ± 163.27
482228 ncm-dbt-01 585126 500 6 342 152 -282.94 ± 20.9 93 150 7 0 0 -739.05 ± 163.27
482227 ncm-dbt-03 576578 500 6 348 146 -290.65 ± 21.81 99 144 7 0 0 -739.05 ± 163.27
482226 ncm-dbt-05 600646 500 9 340 151 -276.68 ± 21.85 93 146 10 1 0 -643.7 ± 122.54
482225 ncm-dbt-02 594193 500 6 342 152 -282.94 ± 20.6 92 152 6 0 0 -766.17 ± 188.02
482224 ncm-dbt-03 575557 500 6 336 158 -275.44 ± 20.01 87 156 7 0 0 -739.05 ± 163.27
482223 ncm-dbt-04 567086 500 5 343 152 -285.48 ± 20.9 94 150 6 0 0 -766.17 ± 188.02
482222 ncm-dbt-01 585843 500 5 342 153 -284.21 ± 21.35 94 150 5 1 0 -739.1 ± 208.89
482221 ncm-dbt-05 604307 500 11 330 159 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
482220 ncm-dbt-02 591340 500 5 343 152 -285.48 ± 21.2 95 148 7 0 0 -739.05 ± 163.27
482219 ncm-dbt-03 577766 500 11 326 163 -257.59 ± 19.22 77 161 12 0 0 -643.67 ± 110.29
482218 ncm-dbt-01 586266 500 7 356 137 -299.96 ± 23.21 107 135 8 0 0 -715.51 ± 146.53
482217 ncm-dbt-04 568315 500 4 335 161 -276.68 ± 19.56 86 159 5 0 0 -798.18 ± 231.48
482216 ncm-dbt-05 603679 500 2 341 157 -286.77 ± 20.11 92 155 3 0 0 -887.58 ± 222.18
482215 ncm-dbt-02 589839 500 3 344 153 -289.35 ± 20.73 95 151 4 0 0 -837.28 ± 240.94
482214 ncm-dbt-01 582903 500 6 336 158 -275.44 ± 20.3 88 154 8 0 0 -715.51 ± 146.53
482213 ncm-dbt-03 579826 500 6 341 153 -281.67 ± 20.45 91 153 6 0 0 -766.17 ± 188.02
482212 ncm-dbt-04 569509 500 3 342 155 -286.77 ± 20.11 92 155 3 0 0 -887.58 ± 222.18
482211 ncm-dbt-05 604802 500 6 345 149 -286.77 ± 21.35 96 147 7 0 0 -739.05 ± 163.27
482210 ncm-dbt-03 573406 500 10 345 145 -281.67 ± 21.63 95 145 10 0 0 -676.04 ± 124.55
482209 ncm-dbt-02 591555 500 3 350 147 -297.27 ± 21.63 101 145 4 0 0 -837.28 ± 240.94
482208 ncm-dbt-01 583028 500 5 343 152 -285.48 ± 20.9 94 150 6 0 0 -766.17 ± 188.02
482207 ncm-dbt-04 568752 500 8 349 143 -289.35 ± 22.25 100 141 9 0 0 -694.7 ± 134.18
482206 ncm-dbt-05 603142 500 11 337 152 -270.57 ± 21.1 89 148 13 0 0 -629.41 ± 104.8
482205 ncm-dbt-02 592936 500 3 344 153 -289.35 ± 20.73 95 151 4 0 0 -837.28 ± 240.94
482204 ncm-dbt-03 579207 500 1 332 167 -276.68 ± 18.94 84 163 3 0 0 -887.58 ± 222.18
482203 ncm-dbt-01 585590 500 2 340 158 -285.48 ± 20.59 93 152 5 0 0 -798.18 ± 231.48
482202 ncm-dbt-04 568991 500 1 352 147 -302.69 ± 21.59 103 145 2 0 0 -958.31 ± 196.57
482201 ncm-dbt-05 613334 500 2 343 155 -289.35 ± 21.35 97 147 6 0 0 -766.17 ± 188.02
482200 ncm-dbt-02 593802 500 8 345 147 -284.21 ± 22.22 98 141 11 0 0 -659.13 ± 116.77
482199 ncm-dbt-03 579868 500 7 347 146 -288.06 ± 21.5 97 146 7 0 0 -739.05 ± 163.27
482198 ncm-dbt-01 584664 500 1 339 160 -285.48 ± 19.64 90 158 2 0 0 -958.31 ± 196.57
482197 ncm-dbt-04 569989 500 6 329 165 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
482196 ncm-dbt-05 602025 500 3 354 143 -302.69 ± 22.58 106 139 5 0 0 -798.18 ± 231.48
482195 ncm-dbt-01 583489 500 5 332 163 -271.78 ± 19.86 85 157 8 0 0 -715.51 ± 146.53
482194 ncm-dbt-04 568077 500 5 339 156 -280.42 ± 20.9 91 153 5 1 0 -739.1 ± 208.89
482193 ncm-dbt-02 594106 500 4 339 157 -281.67 ± 20.75 92 151 7 0 0 -739.05 ± 163.27
482192 ncm-dbt-03 576169 500 5 352 143 -297.27 ± 21.95 102 143 5 0 0 -798.18 ± 231.48

Commit

Commit ID 3acacf8471efd018e33e4743cbbb2aed8d59e855
Author Jonathan D
Date 2019-01-20 11:20:21 UTC
Tweak initiative and Pawn PSQT (#1957) Small changes in initiative(). For Pawn PSQT, endgame values for d6-e6 and d7-e7 are now symmetric. The MG value of d2 is now smaller than e2 (d2=13, e2=21 now compared to d2=19, e2=16 before). The MG values of h5-h6-h7 also increased so this might encourage stockfish for more h-pawn pushes. STC LLR: -2.96 (-2.94,2.94) [0.00,4.00] Total: 81141 W: 17933 L: 17777 D: 45431 http://tests.stockfishchess.org/tests/view/5c4017350ebc5902bb5cf237 LTC LLR: 2.96 (-2.94,2.94) [0.00,4.00] Total: 83078 W: 13883 L: 13466 D: 55729 http://tests.stockfishchess.org/tests/view/5c40763f0ebc5902bb5cff09 Bench: 3266398
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