| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daniel Monroe
Date: Sun Feb 2 13:39:47 2025 +0100 Timestamp: 1738499987 Simp probcut disable condition Disable probcut check when we the ttValue is not at least probCutBeta, regardless of tt depth. Passed simplification STC LLR: 2.92 (-2.94,2.94) <-1.75,0.25> Total: 60896 W: 16030 L: 15835 D: 29031 Elo +1.11 Ptnml(0-2): 220, 7164, 15507, 7315, 242 https://tests.stockfishchess.org/tests/view/679c0a3251037ccaf3e3141e Passed simplification LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 76644 W: 19557 L: 19392 D: 37695 Elo +0.75 Ptnml(0-2): 50, 8486, 21104, 8613, 69 https://tests.stockfishchess.org/tests/view/679c380b0774dfd78deaf35c closes https://github.com/official-stockfish/Stockfish/pull/5840 Bench: 3543770 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Michael Chaly
Date: Sun Feb 2 13:37:47 2025 +0100 Timestamp: 1738499867 Make IIR for PvNodes less aggressive In line with previous experiments on improving scaling of IIR. Now it disables IIR for pv nodes with depth <= 2, so disallowing for it to perform a qsearch dive. Fixed games STC: https://tests.stockfishchess.org/tests/view/679ae6a951037ccaf3e30fb3 Elo: -10.36 ± 2.5 (95%) LOS: 0.0% Total: 20020 W: 4902 L: 5499 D: 9619 Elo -10.36 Ptnml(0-2): 128, 2653, 4976, 2194, 59 Passed VVLTC with STC bounds: https://tests.stockfishchess.org/tests/view/67954f2e406a4efe9eb7d266 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 196758 W: 50725 L: 50258 D: 95775 Elo +0.82 Ptnml(0-2): 21, 18153, 61564, 18620, 21 Passed VVLTC with LTC bounds: https://tests.stockfishchess.org/tests/view/6795a26bf6281b7d7b18698b LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 323092 W: 83679 L: 82857 D: 156556 Elo +0.88 Ptnml(0-2): 48, 29475, 101659, 30335, 29 closes https://github.com/official-stockfish/Stockfish/pull/5834 Bench: 3464332 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daniel Monroe
Date: Sun Feb 2 13:36:58 2025 +0100 Timestamp: 1738499818 Refactor prior reduction Make index of reduction consistent with rest of Stack closes https://github.com/official-stockfish/Stockfish/pull/5832 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Carlos Esparza
Date: Sun Feb 2 13:35:48 2025 +0100 Timestamp: 1738499748 Don't increase rule50 when doing null moves also prefetch a bit earlier while we're at it passed STC: https://tests.stockfishchess.org/tests/view/678c0860f4dc0a8b4ae8cf58 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 67328 W: 17608 L: 17418 D: 32302 Elo +0.98 Ptnml(0-2): 256, 7905, 17156, 8087, 260 passed LTC: https://tests.stockfishchess.org/tests/view/678c1a56f4dc0a8b4ae8cfb1 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 340896 W: 86577 L: 86685 D: 167634 Elo -0.11 Ptnml(0-2): 291, 38325, 93332, 38201, 299 closes https://github.com/official-stockfish/Stockfish/pull/5831 Bench: 1910281 see source |
| Windows x64 for Haswell CPUs Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Shawn Xu
Date: Sun Feb 2 13:33:35 2025 +0100 Timestamp: 1738499615 Clean up corrhist Passed Non-regression STC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 89056 W: 23225 L: 23067 D: 42764 Elo +0.62 Ptnml(0-2): 292, 9688, 24470, 9726, 352 https://tests.stockfishchess.org/tests/view/679816b2ae346be6da0ee8e7 closes https://github.com/official-stockfish/Stockfish/pull/5830 Bench: 1767398 see source |
| Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Sun Jan 26 22:53:34 2025 +0100 Timestamp: 1737928414 No Ply Restriction in the condition that limits the depth extension to a certain point No Ply Restriction in the condition that limits the depth extension to a certain point. Passed again LTC rebased: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 195108 W: 49916 L: 49872 D: 95320 Elo +0.08 Ptnml(0-2): 170, 21846, 53464, 21918, 156 https://tests.stockfishchess.org/tests/view/6795542a406a4efe9eb7d361 closes https://github.com/official-stockfish/Stockfish/pull/5824 Bench: 1767398 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Robert Nurnberg @ elitebook
Date: Sun Jan 26 22:45:33 2025 +0100 Timestamp: 1737927933 Update fastchess CI Version This PR updates the fastchess version used as part of the CI to the one used on fishtest, see https://github.com/official-stockfish/fishtest/pull/2180. Also change the name/repo from fast-chess to fastchess. closes https://github.com/official-stockfish/Stockfish/pull/5826 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daniel Monroe
Date: Sun Jan 26 22:43:02 2025 +0100 Timestamp: 1737927782 Refactor prior countermove bonus Passed simplification STC LLR: 2.97 (-2.94,2.94) <-1.75,0.25> Total: 155424 W: 40252 L: 40159 D: 75013 Elo +0.21 Ptnml(0-2): 511, 18655, 39328, 18666, 552 https://tests.stockfishchess.org/tests/view/6794084fe96bfb672ad18d90 Passed rebased simplification LTC LLR: 2.97 (-2.94,2.94) <-1.75,0.25> Total: 103944 W: 26567 L: 26427 D: 50950 Elo +0.47 Ptnml(0-2): 69, 11640, 28418, 11772, 73 https://tests.stockfishchess.org/tests/view/67955c9a406a4efe9eb7d7e4 closes https://github.com/official-stockfish/Stockfish/pull/5825 Bench: 1839554 see source |
| Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Nonlinear2
Date: Sun Jan 26 22:42:41 2025 +0100 Timestamp: 1737927761 Decrease all stats malus according to move count Passed STC: https://tests.stockfishchess.org/tests/view/6794c4634f7de645171fb341 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 28096 W: 7412 L: 7106 D: 13578 Elo +3.78 Ptnml(0-2): 97, 3194, 7148, 3524, 85 Passed LTC: https://tests.stockfishchess.org/tests/view/6794ea13406a4efe9eb7d06b LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 58086 W: 15049 L: 14684 D: 28353 Elo +2.18 Ptnml(0-2): 27, 6344, 15957, 6667, 48 closes https://github.com/official-stockfish/Stockfish/pull/5823 Bench: 1711170 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Martin Novák
Date: Sun Jan 26 22:41:00 2025 +0100 Timestamp: 1737927660 Remove major corrhist Remove major correction history and slightly increase all other correction weights. Passed STC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 50080 W: 13171 L: 12959 D: 23950 Elo +1.47 Ptnml(0-2): 196, 5998, 12462, 6166, 218 https://tests.stockfishchess.org/tests/live_elo/67954526406a4efe9eb7d176 Passed LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 51504 W: 13188 L: 12995 D: 25321 Elo +1.30 Ptnml(0-2): 54, 5658, 14128, 5865, 47 https://tests.stockfishchess.org/tests/live_elo/67954961406a4efe9eb7d251 closes https://github.com/official-stockfish/Stockfish/pull/5822 Bench: 2081366 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Sun Jan 26 22:39:32 2025 +0100 Timestamp: 1737927572 Simplify cutoffCnt Passed STC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 235872 W: 61156 L: 61155 D: 113561 Elo +0.00 Ptnml(0-2): 843, 28269, 59658, 28376, 790 https://tests.stockfishchess.org/tests/view/6794dd3e4f7de645171fb380 Passed LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 61494 W: 15644 L: 15462 D: 30388 Elo +1.03 Ptnml(0-2): 61, 6822, 16788, 7026, 50 https://tests.stockfishchess.org/tests/view/6794f86a406a4efe9eb7d093 closes https://github.com/official-stockfish/Stockfish/pull/5821 Bench: 2168937 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daniel Monroe
Date: Sat Jan 25 20:59:33 2025 +0100 Timestamp: 1737835173 Simplify futility margin in lmr for quiets. Replace the "low bestValue condition" with whether there is a best move. Passed Simplification STC LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 102560 W: 26517 L: 26367 D: 49676 Elo +0.51 Ptnml(0-2): 328, 12223, 26036, 12357, 336 https://tests.stockfishchess.org/tests/view/679310e4ca18a2c66da02af8 Passed Simplification LTC LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 66942 W: 17130 L: 16953 D: 32859 Elo +0.92 Ptnml(0-2): 52, 7459, 18290, 7600, 70 https://tests.stockfishchess.org/tests/view/679459a3e96bfb672ad18ddf closes https://github.com/official-stockfish/Stockfish/pull/5820 Bench: 1438043 see source |
| Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Stefan Geschwentner
Date: Sat Jan 25 20:56:14 2025 +0100 Timestamp: 1737834974 Consider more nodes as ttPv nodes. Remove depth condition in propagation rule for ttPv state from a node to it childs. Because this change marks more nodes as ttPv, we have a time sensitive ttPv reduction rule and the STC snd LTC seems to show bad scaling. So i have also submitted a VLTC non-regression to check the scaling at higher time control. The results gives a little indication that we have perhaps good scaling with more ttPv nodes so that could be further explored. Passed non-regression STC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 82528 W: 21627 L: 21453 D: 39448 Elo +0.73 Ptnml(0-2): 317, 9809, 20891, 9877, 370 https://tests.stockfishchess.org/tests/view/678e608cd63764e34db49ad7 Passed non-regression LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 310440 W: 78879 L: 78956 D: 152605 Elo -0.09 Ptnml(0-2): 255, 34915, 84938, 34876, 236 https://tests.stockfishchess.org/tests/view/678fab89ac8f8f5496155f3c Passed non-regression VLTC for scaling verification: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 59496 W: 15158 L: 14983 D: 29355 Elo +1.02 Ptnml(0-2): 15, 6039, 17470, 6204, 20 https://tests.stockfishchess.org/tests/view/6794bd1f4f7de645171fb33b closes https://github.com/official-stockfish/Stockfish/pull/5819 Bench: 1829507 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Shawn Xu
Date: Sat Jan 25 20:53:53 2025 +0100 Timestamp: 1737834833 Better nonpawn indexing Improves indexing scheme, by noting that both sides are likely to access the same non_pawn_index nearby. LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 75936 W: 19905 L: 19554 D: 36477 Elo +1.61 Ptnml(0-2): 190, 7863, 21554, 8128, 233 https://tests.stockfishchess.org/tests/view/67904d0cfc8c306ba6cea332 closes https://github.com/official-stockfish/Stockfish/pull/5816 No functional change Co-authored-by: Andrew Grant <> see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Viren6
Date: Sat Jan 25 20:51:31 2025 +0100 Timestamp: 1737834691 Revert "Moving up the if position is or has been on the PV reduction" Passed VVLTC 1: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 68362 W: 17830 L: 17523 D: 33009 Elo +1.56 Ptnml(0-2): 9, 6253, 21347, 6566, 6 https://tests.stockfishchess.org/tests/view/6790271cfc8c306ba6cea2c1 Passed VVLTC 2: LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 113256 W: 29158 L: 28721 D: 55377 Elo +1.34 Ptnml(0-2): 13, 10521, 35122, 10960, 12 https://tests.stockfishchess.org/tests/view/678d3e47d63764e34db491a3 closes https://github.com/official-stockfish/Stockfish/pull/5815 bench 1943998 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Robert Nurnberg @ elitebook
Date: Sat Jan 25 20:42:50 2025 +0100 Timestamp: 1737834170 Do not change TB cursed wins to draws if requested If Syzygy50MoveRule is false, do not calls to is_draw() need to be guarded. Also fixes a TB rootmove ranking issue in this case. closes https://github.com/official-stockfish/Stockfish/pull/5814 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: pkrisz99
Date: Sat Jan 25 20:41:37 2025 +0100 Timestamp: 1737834097 Add improving to a condition of NMP This patch makes one of the conditions for null-move pruning depend on whether we're improving. Keep in mind that it relies on the "classical" definiton, rather than the refined one. Passed STC: https://tests.stockfishchess.org/tests/view/678d5267d63764e34db49720 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 38976 W: 10296 L: 9974 D: 18706 Elo +2.87 Ptnml(0-2): 135, 4504, 9902, 4798, 149 Passed LTC: https://tests.stockfishchess.org/tests/view/678d5891d63764e34db49731 LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 275772 W: 70655 L: 69836 D: 135281 Elo +1.03 Ptnml(0-2): 217, 30615, 75394, 31452, 208 closes https://github.com/official-stockfish/Stockfish/pull/5813 Bench: 2475787 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Shawn Xu
Date: Sat Jan 25 20:33:43 2025 +0100 Timestamp: 1737833623 Fix undefined behavior From cppreference: "It is undefined behavior to read from the member of the union that wasn't most recently written. Many compilers implement, as a non-standard language extension, the ability to read inactive members of a union." closes https://github.com/official-stockfish/Stockfish/pull/5811 no functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: FauziAkram
Date: Sat Jan 25 20:29:40 2025 +0100 Timestamp: 1737833380 Comments Tweak * Remove from comments, hardcoded exact values for parameters that are subject to tuning. * Remove the Elo worth, as they are now completely outdated, making them irrelevant and potentially misleading. * Consolidated scaling-related comments into a single section for clarity. Used asterisks (*) to highlight parameters significantly affected by scaling, given their separation in the code. closes https://github.com/official-stockfish/Stockfish/pull/5810 No functional change see source |
| Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Nonlinear2
Date: Sat Jan 25 20:27:11 2025 +0100 Timestamp: 1737833231 Increase prior countermove bonus if TT move Passed STC: https://tests.stockfishchess.org/tests/view/678c4c8bf4dc0a8b4ae8db5c LLR: 2.97 (-2.94,2.94) <0.00,2.00> Total: 273408 W: 71089 L: 70415 D: 131904 Elo +0.86 Ptnml(0-2): 937, 32466, 69229, 33130, 942 Passed LTC: https://tests.stockfishchess.org/tests/view/678ccabdf4dc0a8b4ae8dd7a LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 148614 W: 38138 L: 37584 D: 72892 Elo +1.30 Ptnml(0-2): 97, 16450, 40689, 16944, 127 closes https://github.com/official-stockfish/Stockfish/pull/5809 Bench: 1582867 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Stefan Geschwentner
Date: Sat Jan 25 20:23:33 2025 +0100 Timestamp: 1737833013 Add move count based reduction. Do less reduction which is linear increasing with move count (factor = 64). Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 191488 W: 49982 L: 49432 D: 92074 Elo +1.00 Ptnml(0-2): 731, 22523, 48614, 23217, 659 https://tests.stockfishchess.org/tests/view/678d0b29d63764e34db4904b Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 90582 W: 23150 L: 22717 D: 44715 Elo +1.66 Ptnml(0-2): 73, 9936, 24822, 10405, 55 https://tests.stockfishchess.org/tests/view/678d347cd63764e34db4916f closes https://github.com/official-stockfish/Stockfish/pull/5807 Bench: 1803474 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Shawn Xu
Date: Sat Jan 25 20:17:39 2025 +0100 Timestamp: 1737832659 Clean up pack reordering closes https://github.com/official-stockfish/Stockfish/pull/5802 no functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: mstembera
Date: Sat Jan 25 20:12:38 2025 +0100 Timestamp: 1737832358 Generate lookup indices at compile time. Credit to @Disservin: the constexpr lsb is just the De Bruijn bitscan with the xor from the cpw https://www.chessprogramming.org/BitScan closes https://github.com/official-stockfish/Stockfish/pull/5801 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Shawn Xu
Date: Sat Jan 25 20:09:09 2025 +0100 Timestamp: 1737832149 simplify accumulator updates After #5759 accumulator updates are strictly on a per-move basis. Therefore, the generic code for updating multiple moves at once is no longer needed. Passed Non-regression STC: LLR: 3.00 (-2.94,2.94) <-1.75,0.25> Total: 81696 W: 21204 L: 21039 D: 39453 Elo +0.70 Ptnml(0-2): 210, 8431, 23416, 8566, 225 https://tests.stockfishchess.org/tests/view/67823a24a31c4c13e83518a8 closes https://github.com/official-stockfish/Stockfish/pull/5760 no functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Sat Jan 18 21:33:17 2025 +0100 Timestamp: 1737232397 Replace depth increase condition with !opponentWorsening Passed simplification STC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 220544 W: 57417 L: 57399 D: 105728 Elo +0.03 Ptnml(0-2): 816, 26554, 55540, 26520, 842 https://tests.stockfishchess.org/tests/view/678970e38082388fa0cbfe02 Passed simplification LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 132600 W: 33868 L: 33760 D: 64972 Elo +0.28 Ptnml(0-2): 126, 14770, 36390, 14898, 116 https://tests.stockfishchess.org/tests/view/678accabc00c743bc9e9fc7f closes https://github.com/official-stockfish/Stockfish/pull/5798 bench 1632964 see source |