Commit Graph
2820 Commits
Author SHA1 Message Date
Steinar H. Gunderson a5c89f4592 Merge commit '60351b9df901ff5278f208a9cf3a40059ff54832' into cluster
This is the last commit before there are more conflicts.
2025-12-25 16:56:54 +01:00
Steinar H. Gunderson a449238954 Merge commit '703f17975bd9c29172a27f795ca6b5a7d0a32b25' into cluster 2025-12-25 16:55:54 +01:00
Steinar H. Gunderson 0043886170 Merge commit 'e57fba7fc9be461cbb97c063b269a1e231cdd284' into cluster
This is the last commit before there are more conflicts.
2025-12-25 16:54:13 +01:00
Steinar H. Gunderson 1cffdc1ce4 Merge commit '7e72b37e4ce3351399bb0ac08686bd84cdc4fba9' into cluster 2025-12-25 16:03:31 +01:00
Steinar H. Gunderson a20c6d296a Merge commit '362a77a3450335e1940020c080bf3b7b361c594a' into cluster 2025-12-25 15:53:03 +01:00
Steinar H. Gunderson d002e92294 Merge commit 'b209f14b1ee0cda8cbd7fa3a8349e65701d1869f' into cluster
This is the last commit before there are more conflicts.
2025-12-25 15:48:01 +01:00
Steinar H. Gunderson d83e63c163 Merge commit '5d3517c601c64d026824251784dd44f0cbf14873' into cluster 2025-12-25 15:30:32 +01:00
Steinar H. Gunderson d7cf6e22fd Merge commit '5752529cabb3270e055147709ff0847e4d59ec22' into cluster
This is the last commit before there are more conflicts.
2025-12-25 15:27:42 +01:00
Steinar H. Gunderson d1b19aad2f Merge commit '2cbc20e846e46da8bfc8e254a7703a0bfad3b850' into cluster 2025-12-25 15:26:23 +01:00
Steinar H. Gunderson 8f9e750782 Merge commit '3c379e55d9d92a5704632c6255e72892a4db9a2f' into cluster
This is the last commit before there are more conflicts.
2025-12-25 15:22:41 +01:00
Steinar H. Gunderson cefd309d92 Merge commit '25361e514bffb81284d4311601a9f7a4a7ced79b' into cluster 2025-12-25 15:22:02 +01:00
Steinar H. Gunderson 46264c6ed7 Merge commit '74a8fc060465a822f0c047f908d5fb07ebc6ad96' into cluster
This is the last commit before there are more conflicts.
2025-12-25 15:16:24 +01:00
Steinar H. Gunderson 5c9ed18b48 Merge commit 'b01fdb596a196f966549f7132c042ab67962fbbd' into cluster 2025-12-25 15:16:01 +01:00
Steinar H. Gunderson 7df644a00a Merge commit '44cddbd962c738678f407a7414efa5b93f0710d9' into cluster
This is the last commit before there are more conflicts.
2025-12-25 15:10:02 +01:00
Steinar H. Gunderson 876495975e Merge commit 'c8213ba0d047569141ed58f5eb86579d976b5614' into cluster
As part of this work, we needed to rename the namespace Stockfish::Cluster
to Stockfish::Distributed, as Cluster is now a type name.
2025-12-25 00:17:08 +01:00
Steinar H. Gunderson f358a30ea0 Merge commit '7e890fd048e22bfd213d46ec8eb88f7931f0315d' into cluster
This is the last commit before there are more conflicts.
2025-12-24 16:29:33 +01:00
Steinar H. Gunderson 639294636e Merge commit '36eb9bc783d35842571d0d4313349b964892d9ca' into cluster
This is the last commit before there are more conflicts.
2025-12-24 16:26:07 +01:00
Steinar H. Gunderson 784db2cbed Merge commit 'a2a7edf4c8fa145667135bf1bc7f4f67016f7608' into cluster
This is the last commit before there are more conflicts.
2025-12-24 16:19:29 +01:00
Steinar H. Gunderson bc81aa0911 Merge commit 'a169c78b6d3b082068deb49a39aaa1fd75464c7f' into cluster 2025-12-24 16:18:37 +01:00
Steinar H. Gunderson e56697e3f1 Merge commit 'b0287dcb1c436887075962b596cf2068d2ca9ba8' into cluster
This is the last commit before there are more conflicts.
2025-12-24 15:23:14 +01:00
Steinar H. Gunderson 125f4f3df0 Merge commit 'ed79745bb9e7207b604c62758ea45dd5c597ed8d' into cluster 2025-12-24 15:22:12 +01:00
Steinar H. Gunderson ea9a328340 Merge commit 'c14b69790a62aad89fcc471cde482923dfe57f1e' into cluster
This is the last commit before there are more conflicts.
2025-12-24 15:17:55 +01:00
Steinar H. Gunderson fb9a3d3323 Merge commit '2dbb44e28d2e5b3c72ddbbd6f436d41f75031a22' into cluster 2025-12-24 15:17:18 +01:00
Steinar H. Gunderson 649004ed47 Merge commit 'db147fe2586527a854516016699949af53dc5b17' into cluster
This is the last commit before there are more conflicts.
2025-12-24 15:14:23 +01:00
Steinar H. Gunderson 5f5f991780 Merge commit '3502c8ae426506453ca64e87e48d962b327c2356' into cluster 2025-12-24 15:12:37 +01:00
Steinar H. Gunderson 6b6279098d Merge commit 'd47aa639bd614b37a59f87e6ab68496580f0cf3e' into cluster
This is the last commit before there are more conflicts.
2025-12-24 15:02:03 +01:00
Steinar H. Gunderson 2a1ed1267e Merge commit 'd3fc1d835e5144cc98d6a7658fb8cfd9370792f1' into cluster 2025-12-24 14:37:41 +01:00
Steinar H. Gunderson 8e509e240a Merge commit '432995ad82119070afa0bf720eb65d800bcbf817' into cluster
This is the last commit before there are more conflicts.
2025-12-24 13:57:03 +01:00
Steinar H. Gunderson ee41dc5c98 Merge commit '14f6eab07d1d1e1a59372974e5534128676e9440' into cluster
This is the last commit before there are more conflicts.
2025-12-24 13:51:24 +01:00
Steinar H. Gunderson f0793a2080 Merge commit '9032c6cbe74ccf7e8963755501e7e6cc473ae471' into cluster
This is a rather involved merge, since the cluster changes interact
fairly badly with the refactoring we're merging:

The new code wants the search to know nothing at all about the UCI protocol,
it just calls a callback with some worker information (including a Position),
which then transforms that information into a InfoFull which is then sent
through another callback, upon which UCIEngine converts it to UCI and writes
it to stdout.

On the other hand, the MPI information wants to exchange PVs between workers
at this point, and it wants to use the UCI string as the primary medium of
exchange. Position is a lot of work to serialize, so we choose a middle road;
we capture the InfoFull by switching out the callback, serializes it, does the
MPI exchange on that, unserializes it and then continues with the print callback
(if there is new information).
2025-12-24 13:50:14 +01:00
Steinar H. Gunderson a3cb287405 Merge commit '299707d2c2cbf1694bb21ed4a375b54ef35d719e' into cluster 2025-12-23 16:21:07 +01:00
Shawn XuandDisservin 60351b9df9 Introduce Various Correction histories
This patch introduces three additional correction histories, namely,
Major Piece Correction History, Minor Piece Correction History, and
Non-Pawn Correction History.

Introduced by @mcthouacbb in Sirius
(https://github.com/mcthouacbb/Sirius) chess engine. The Major Piece
Correction History is indexed by side-to-move and the Zobrist key
representing the position of the King, Rook, and Queen of both sides.
Likewise, the Minor Piece Correction History is indexed by side-to-move
and the Zobrist key representing the position of the King, Knight, and
Bishop of both sides.

Also See:
https://github.com/mcthouacbb/Sirius/commit/97b85bbaac88ff5a0f63e28776027dd3de77164e
https://github.com/mcthouacbb/Sirius/commit/3099cdef2f13e29805654b5f8153e6ecd5853195

Introduced by @zzzzz151 in Starzix (https://github.com/zzzzz151/Starzix)
chess engine. Non-Pawn correction history consists of side-to-move, side
of Zobrist key, and a Zobrist key representing of the position of all
non-pawn pieces of **one side**. The non-pawn correction values for both
key sides are then summed.

Also See:
https://github.com/zzzzz151/Starzix/commit/34911772f178c27b3a239dda0acb79c397c3a2f0
https://github.com/zzzzz151/Starzix/commit/33e0df8dd2db1d4775974ab12e3390154697f47a

The weights on the final correction value of the above correction
histories, as well as existing correction histories, are then tuned in
two separate SPSA sessions, totaling 75k games.

SPSA1:
https://tests.stockfishchess.org/tests/view/66e5243886d5ee47d953a86b
(Stopped early due to some weights reaching the maximum value)

SPSA2:
https://tests.stockfishchess.org/tests/view/66e6a26f86d5ee47d953a965

Also thanks to @martinnovaak, (Motor
https://github.com/martinnovaak/motor author) for insights and
suggestions.

Passed STC:
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 23328 W: 6197 L: 5901 D: 11230
Ptnml(0-2): 82, 2582, 6041, 2876, 83
https://tests.stockfishchess.org/tests/view/66e8787b86d5ee47d953ab6f

Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 10626 W: 2826 L: 2560 D: 5240
Ptnml(0-2): 4, 1054, 2941, 1300, 14
https://tests.stockfishchess.org/tests/view/66e8ab2386d5ee47d953aba8

closes https://github.com/official-stockfish/Stockfish/pull/5598

Bench: 1011161
2024-09-17 21:01:43 +02:00
Michael ChalyandDisservin 240a5b1c72 Introduce separate butterfly history table for sorting root moves
Idea of this patch comes from the fact that current history heuristics
are mostly populated by low depth entries since our stat bonus reaches
maximum value at depth 5-6 and number of low depth nodes is much bigger
than number of high depth nodes. But it doesn't make a whole lost of
sense to use this low-depth centered histories to sort moves at root.
Current patch introduces special history table that is used exclusively
at root, it remembers which quiet moves were good and which quiet moves
were not good there and uses this information for move ordering.

Passed STC:
https://tests.stockfishchess.org/tests/view/66dda74adc53972b68218cc9
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 127680 W: 33579 L: 33126 D: 60975
Ptnml(0-2): 422, 15098, 32391, 15463, 466

Passed LTC:
https://tests.stockfishchess.org/tests/view/66dead2adc53972b68218d34
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 381978 W: 96958 L: 95923 D: 189097
Ptnml(0-2): 277, 42165, 105089, 43162, 296

closes https://github.com/official-stockfish/Stockfish/pull/5595

Bench: 1611283
2024-09-17 20:54:02 +02:00
Shawn XuandDisservin 5ce7f866a5 Simplify Fail Low Bonus
Passed Non-regression STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 302528 W: 78190 L: 78264 D: 146074
Ptnml(0-2): 1029, 35797, 77551, 35993, 894
https://tests.stockfishchess.org/tests/view/66dcebdedc53972b68218c7e

Passed Non-regression LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 122754 W: 31025 L: 30907 D: 60822
Ptnml(0-2): 74, 13597, 33908, 13733, 65
https://tests.stockfishchess.org/tests/view/66e0c38686d5ee47d953a481

closes https://github.com/official-stockfish/Stockfish/pull/5594

Bench: 1646373
2024-09-17 20:50:30 +02:00
Muzhen GamingandDisservin 224c147bd6 VVLTC Search Tune
Tuned with 115k games at VVLTC:
https://tests.stockfishchess.org/tests/view/66c80e09bf8c9d8780fda62a

Passed VVLTC 1st sprt:
https://tests.stockfishchess.org/tests/view/66d69ade9de3e7f9b33d14f9
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 54270 W: 13935 L: 13647 D: 26688
Ptnml(0-2): 2, 4907, 17032, 5189, 5

Passed VVLTC 2nd sprt:
https://tests.stockfishchess.org/tests/view/66dcf9c1dc53972b68218c84
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 136696 W: 34941 L: 34462 D: 67293
Ptnml(0-2): 8, 12659, 42535, 13138, 8

closes https://github.com/official-stockfish/Stockfish/pull/5592

Bench: 1644273
2024-09-17 20:47:24 +02:00
Nonlinear2andDisservin d8e49cdbdd Remove the moveCount increase in the LMR condition.
Passed non-regression STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 87104 W: 22630 L: 22464 D: 42010
Ptnml(0-2): 316, 10295, 22132, 10525, 284
https://tests.stockfishchess.org/tests/view/66dccd00dc53972b68218c60

Passed non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 94050 W: 23869 L: 23722 D: 46459
Ptnml(0-2): 49, 10400, 25985, 10537, 54
https://tests.stockfishchess.org/tests/view/66dd69c7dc53972b68218ca5

closes https://github.com/official-stockfish/Stockfish/pull/5582

Bench: 1281840
2024-09-10 22:59:27 +02:00
MinetaSandDisservin 6de2587236 Remove statScore condition in NMP
Eliminate the condition that is nearly 100% likelihood of being true.

Passed non-regression STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 208832 W: 54053 L: 54022 D: 100757
Ptnml(0-2): 753, 24987, 52901, 25026, 749
https://tests.stockfishchess.org/tests/view/66cddb50bf8c9d8780fdabaf

Passed non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 154344 W: 39132 L: 39047 D: 76165
Ptnml(0-2): 115, 17231, 42403, 17300, 123
https://tests.stockfishchess.org/tests/view/66cfafe39de3e7f9b33d1050

closes https://github.com/official-stockfish/Stockfish/pull/5558

Bench: 1393697
2024-09-10 22:58:47 +02:00
Michael ChalyandDisservin a8cb002038 Simplify ttmove reduction
Remove condition that clamps reductions for tt move.

Passed STC:
https://tests.stockfishchess.org/tests/view/66d5f1239de3e7f9b33d14b0
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 91136 W: 23805 L: 23646 D: 43685
Ptnml(0-2): 334, 10328, 24066, 10525, 315

Passed LTC:
https://tests.stockfishchess.org/tests/view/66d7c5889de3e7f9b33d1721
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 139242 W: 35130 L: 35030 D: 69082
Ptnml(0-2): 78, 15200, 38986, 15258, 99

closes https://github.com/official-stockfish/Stockfish/pull/5574

Bench: 1268715
2024-09-09 18:02:32 +02:00
Daniel MonroeandDisservin e74452ae44 Reduce on ttcaptures if not capture
Tweak ttcapture reduction.
Reduce on ttcaptures only if the current move is a capture

Passed STC:
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 94912 W: 24896 L: 24492 D: 45524
Ptnml(0-2): 301, 11197, 24087, 11539, 332
https://tests.stockfishchess.org/tests/view/66cd2264bf8c9d8780fdab34

Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 60738 W: 15465 L: 15096 D: 30177
Ptnml(0-2): 42, 6573, 16775, 6932, 47
https://tests.stockfishchess.org/tests/view/66cf356d9de3e7f9b33d0fde

closes https://github.com/official-stockfish/Stockfish/pull/5562

Bench: 1268700
2024-09-09 17:48:26 +02:00
Shawn XuandDisservin ddc9f48bc3 Introduce Material Correction History
Idea from Caissa (https://github.com/Witek902/Caissa) chess engine.

Add a secondary correction history indexed by the material key of a position.
The material key is the zobrist hash representing the number of pieces left in a
position.

Passed STC:
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 189472 W: 49360 L: 48813 D: 91299
Ptnml(0-2): 666, 22453, 47953, 22996, 668
https://tests.stockfishchess.org/tests/view/66cbddafbf8c9d8780fda9f1

Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 224190 W: 57022 L: 56312 D: 110856
Ptnml(0-2): 197, 24723, 61540, 25443, 192
https://tests.stockfishchess.org/tests/view/66cd529bbf8c9d8780fdab4c

closes https://github.com/official-stockfish/Stockfish/pull/5556

Bench: 1462697
2024-09-09 17:43:05 +02:00
FauziAkramandDisservin 4fb04eb3df Simplify history bonus
After we recently added the disallowance for negative bonuses, it is no
longer necessary to keep the max comparison in the previous step.

Passed STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 72000 W: 18820 L: 18637 D: 34543
Ptnml(0-2): 267, 8489, 18276, 8730, 238
https://tests.stockfishchess.org/tests/view/66ce132cbf8c9d8780fdabe7

Passed LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 67452 W: 17136 L: 16961 D: 33355
Ptnml(0-2): 35, 7489, 18519, 7632, 51
https://tests.stockfishchess.org/tests/view/66cf6ad49de3e7f9b33d1010

closes https://github.com/official-stockfish/Stockfish/pull/5554

Bench: 1147012
2024-09-09 17:34:31 +02:00
FauziAkramandJoost VandeVondele 451044202a Simpler formula for ss->cutoffCnt update
closes https://github.com/official-stockfish/Stockfish/pull/5548

No functional change
2024-08-28 09:35:21 +02:00
Taras VukandJoost VandeVondele 54def6f7eb rename !(PvNode || cutNode) to allNode
Passed STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 108992 W: 28178 L: 28039 D: 52775
Ptnml(0-2): 356, 12428, 28762, 12621, 329
https://tests.stockfishchess.org/tests/view/66c73a51bf8c9d8780fda532

closes https://github.com/official-stockfish/Stockfish/pull/5549

No functional change
2024-08-28 09:34:09 +02:00
Taras VukandJoost VandeVondele 9fb58328e3 Tweak late move extensions
Allow late move extensions only for PV and cut nodes.

Passed STC:
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 44512 W: 11688 L: 11355 D: 21469
Ptnml(0-2): 167, 5180, 11229, 5513, 167
https://tests.stockfishchess.org/tests/view/66c0509d4ff211be9d4ef10e

Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 152970 W: 39026 L: 38466 D: 75478
Ptnml(0-2): 102, 16792, 42164, 17298, 129
https://tests.stockfishchess.org/tests/view/66c0994d21503a509c13b2b6

closes https://github.com/official-stockfish/Stockfish/pull/5541

bench: 1484730
2024-08-20 21:37:25 +02:00
Shawn XuandJoost VandeVondele d275bf9643 Introduce Fail Low History Bonus
When a node fails low, give TT move a small bonus 1/4 of normal value.

Passed STC:
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 92384 W: 24094 L: 23691 D: 44599
Ptnml(0-2): 323, 10852, 23465, 11203, 349
https://tests.stockfishchess.org/tests/view/66be80794ff211be9d4eed68

Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 114660 W: 29260 L: 28778 D: 56622
Ptnml(0-2): 97, 12506, 31653, 12966, 108
https://tests.stockfishchess.org/tests/view/66bf63ee4ff211be9d4eeef0

closes https://github.com/official-stockfish/Stockfish/pull/5539

bench 1463003
2024-08-20 21:34:19 +02:00
Nonlinear2andJoost VandeVondele 6cf7f300ac Simplify stand pat adjustement
Remove && !PvNode condition for stand pat adjustement in quiescence search.

Passed non-regression STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 108544 W: 28228 L: 28085 D: 52231
Ptnml(0-2): 389, 12902, 27554, 13031, 396
https://tests.stockfishchess.org/tests/view/66bb402e4ff211be9d4ee688

Passed non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 193014 W: 48796 L: 48751 D: 95467
Ptnml(0-2): 188, 21481, 53116, 21542, 180
https://tests.stockfishchess.org/tests/view/66bc78774ff211be9d4ee88f

closes https://github.com/official-stockfish/Stockfish/pull/5538

Bench 1787360
2024-08-20 21:31:33 +02:00
Shawn XuandJoost VandeVondele 87814d2fb8 Simplify doShallowerSearch
Passed Non-regression STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 242336 W: 62657 L: 62663 D: 117016
Ptnml(0-2): 941, 28949, 61418, 28895, 965
https://tests.stockfishchess.org/tests/view/66bc13c34ff211be9d4ee794

Passed Non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 128100 W: 32503 L: 32390 D: 63207
Ptnml(0-2): 106, 14319, 35113, 14380, 132
https://tests.stockfishchess.org/tests/view/66bdbb304ff211be9d4eec5d

closes https://github.com/official-stockfish/Stockfish/pull/5537

bench 1586246
2024-08-20 21:27:58 +02:00
Shawn XuandJoost VandeVondele 175021721c Simplify bestMove promotion
Passed Non-regression STC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 216768 W: 56240 L: 56217 D: 104311
Ptnml(0-2): 794, 24900, 56956, 24957, 777
https://tests.stockfishchess.org/tests/view/66bc11324ff211be9d4ee78b

Passed Non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 44970 W: 11391 L: 11199 D: 22380
Ptnml(0-2): 44, 4596, 13002, 4810, 33
https://tests.stockfishchess.org/tests/view/66bdbb1b4ff211be9d4eec5a

closes https://github.com/official-stockfish/Stockfish/pull/5535

bench: 1613043
2024-08-20 21:24:04 +02:00
FauziAkramandJoost VandeVondele 4995792a6c Simplify cutnode reduction formula
Passed STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 137994 W: 34705 L: 34603 D: 68686
Ptnml(0-2): 124, 15371, 37903, 15477, 122
https://tests.stockfishchess.org/tests/view/66aeb74b4ff211be9d4eda10

Passed LTC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 131456 W: 34148 L: 34031 D: 63277
Ptnml(0-2): 506, 15571, 33465, 15672, 514
https://tests.stockfishchess.org/tests/view/66ae258b4ff211be9d4ed95d

closes https://github.com/official-stockfish/Stockfish/pull/5531

Bench: 1261995
2024-08-20 20:57:07 +02:00
Shawn XuandJoost VandeVondele a75717ede1 Simplify Post-LMR Continuation History Updates
Passed Non-regression STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 55520 W: 14625 L: 14420 D: 26475
Ptnml(0-2): 247, 6522, 14007, 6747, 237
https://tests.stockfishchess.org/tests/view/66ad40874ff211be9d4ed8f7

Passed Non-regression LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 216168 W: 54561 L: 54540 D: 107067
Ptnml(0-2): 196, 24212, 59244, 24239, 193
https://tests.stockfishchess.org/tests/view/66aeac954ff211be9d4eda03

closes https://github.com/official-stockfish/Stockfish/pull/5530

bench 1418263
2024-08-20 20:51:39 +02:00