Dev Builds » 20200225-2003

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 06:25:44 584624 4000 50 2606 1344 -262.83 ± 6.71 626 1305 68 1 0 -699.72 ± 42.05
ncm-dbt-02 06:25:56 586982 4000 51 2618 1331 -264.45 ± 6.72 633 1301 66 0 0 -710.11 ± 42.7
ncm-dbt-03 06:27:14 586146 4026 58 2632 1336 -263.03 ± 6.8 638 1301 71 3 0 -684.0 ± 41.04
ncm-dbt-04 06:28:00 567489 3992 54 2589 1349 -260.5 ± 6.67 613 1310 72 1 0 -689.53 ± 40.82
ncm-dbt-05 06:26:12 583213 3982 55 2545 1382 -254.91 ± 6.5 580 1330 81 0 0 -673.07 ± 38.4
20000 268 12990 6742 -261.13 ± 2.99 3090 6547 358 5 0 -690.85 ± 18.06

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
470883 ncm-dbt-03 586054 26 0 16 10 -249.16 ± 65.87 3 10 0 0 0 -1199.83 ± 147.58
470882 ncm-dbt-05 585717 482 6 307 169 -254.43 ± 19.84 74 153 14 0 0 -609.62 ± 100.02
470881 ncm-dbt-04 571391 492 5 318 169 -261.17 ± 18.16 73 167 6 0 0 -763.34 ± 187.98
470880 ncm-dbt-02 586774 500 7 331 162 -268.16 ± 19.42 82 160 8 0 0 -715.51 ± 146.53
470879 ncm-dbt-01 583196 500 3 323 174 -263.41 ± 18.26 76 168 6 0 0 -766.17 ± 188.02
470878 ncm-dbt-03 585970 500 9 325 166 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
470877 ncm-dbt-05 583028 500 8 317 175 -250.76 ± 18.35 71 167 12 0 0 -643.67 ± 110.29
470876 ncm-dbt-04 566967 500 7 324 169 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
470875 ncm-dbt-02 586308 500 9 324 167 -257.59 ± 18.95 76 163 11 0 0 -659.13 ± 116.77
470874 ncm-dbt-01 584411 500 4 317 179 -255.29 ± 18.11 72 169 9 0 0 -694.7 ± 134.18
470873 ncm-dbt-03 587664 500 4 330 166 -270.57 ± 19.13 81 165 3 1 0 -798.25 ± 263.18
470872 ncm-dbt-05 585084 500 6 318 176 -254.15 ± 17.4 69 174 7 0 0 -739.05 ± 163.27
470871 ncm-dbt-04 567799 500 6 325 169 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
470870 ncm-dbt-02 586816 500 4 320 176 -258.74 ± 17.68 72 172 6 0 0 -766.17 ± 188.02
470869 ncm-dbt-01 584874 500 3 336 161 -279.16 ± 19.85 88 157 5 0 0 -798.18 ± 231.48
470868 ncm-dbt-03 586562 500 8 332 160 -268.16 ± 19.71 83 158 9 0 0 -694.7 ± 134.18
470867 ncm-dbt-05 583572 500 6 339 155 -279.16 ± 20.45 90 153 7 0 0 -739.05 ± 163.27
470866 ncm-dbt-04 567205 500 8 320 172 -254.15 ± 17.97 71 170 9 0 0 -694.7 ± 134.18
470865 ncm-dbt-02 589069 500 6 317 177 -253.02 ± 17.26 68 175 7 0 0 -739.05 ± 163.27
470864 ncm-dbt-01 584664 500 7 332 161 -269.36 ± 20.68 86 154 9 1 0 -659.17 ± 131.36
470863 ncm-dbt-03 586520 500 7 320 173 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
470862 ncm-dbt-05 583698 500 5 324 171 -262.24 ± 17.82 74 171 5 0 0 -798.18 ± 231.48
470861 ncm-dbt-04 568673 500 10 326 164 -258.75 ± 20.41 81 155 13 1 0 -603.86 ± 103.96
470860 ncm-dbt-02 588686 500 3 334 163 -276.68 ± 19.25 85 161 4 0 0 -837.28 ± 240.94
470859 ncm-dbt-03 584874 500 7 336 157 -274.22 ± 20.15 87 155 8 0 0 -715.51 ± 146.53
470858 ncm-dbt-01 582318 500 6 336 158 -275.44 ± 19.71 86 158 6 0 0 -766.17 ± 188.02
470857 ncm-dbt-05 584495 500 9 316 175 -248.52 ± 18.85 72 163 15 0 0 -603.84 ± 95.91
470856 ncm-dbt-04 563626 500 8 325 167 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
470855 ncm-dbt-02 587028 500 10 339 151 -274.22 ± 21.55 92 145 13 0 0 -629.41 ± 104.8
470854 ncm-dbt-03 584958 500 7 320 173 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
470853 ncm-dbt-01 584748 500 10 327 163 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
470852 ncm-dbt-05 581319 500 10 313 177 -244.09 ± 18.01 67 169 14 0 0 -616.18 ± 100.06
470851 ncm-dbt-04 567601 500 5 326 169 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
470850 ncm-dbt-01 586012 500 10 315 175 -246.3 ± 17.78 67 171 12 0 0 -643.67 ± 110.29
470849 ncm-dbt-02 584832 500 6 327 167 -264.59 ± 18.7 78 165 7 0 0 -739.05 ± 163.27
470848 ncm-dbt-03 588345 500 8 331 161 -266.97 ± 20.66 85 154 10 1 0 -643.7 ± 122.54
470847 ncm-dbt-05 578794 500 5 311 184 -247.41 ± 16.53 63 180 7 0 0 -739.05 ± 163.27
470846 ncm-dbt-02 586350 500 6 326 168 -263.41 ± 19.4 80 160 10 0 0 -676.04 ± 124.55
470845 ncm-dbt-01 586774 500 7 320 173 -255.29 ± 18.11 72 169 9 0 0 -694.7 ± 134.18
470844 ncm-dbt-03 584369 500 8 322 170 -256.44 ± 19.07 75 165 9 1 0 -659.17 ± 131.36
470843 ncm-dbt-04 566651 500 5 325 170 -263.41 ± 17.97 75 170 5 0 0 -798.18 ± 231.48

Commit

Commit ID 8352977b91d9246618c7273d59400a4a05a32e2a
Author 31m059
Date 2020-02-25 20:03:42 UTC
Use single param for Outpost and ReachableOutpost. In November 2019, as a result of the simplification of rank-based outposts by 37698b0, separate bonuses were introduced for outposts that are currently occupied and outposts that are reachable on the next move. However, the values of these two bonuses are quite similar, and they have remained that way for three months of development. It appears that we can safely retire the separate ReachableOutpost parameter and use the same Outpost bonus in both cases, restoring the basic principles of Stockfish outpost evaluation to their pre-November state, while also reducing the size of the parameter space. STC: LLR: 2.96 (-2.94,2.94) {-1.50,0.50} Total: 47680 W: 9213 L: 9092 D: 29375 Ptnml(0-2): 776, 5573, 11071, 5594, 826 https://tests.stockfishchess.org/tests/view/5e51e33190a0a02810d09802 LTC: LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 14690 W: 1960 L: 1854 D: 10876 Ptnml(0-2): 93, 1381, 4317, 1435, 119 https://tests.stockfishchess.org/tests/view/5e52197990a0a02810d0980f closes https://github.com/official-stockfish/Stockfish/pull/2559 Bench: 4697493
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