 ElbertoOneandMarco Costalba
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d39ffbeea6
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Simplified select best thread (#958)
Only select best thread if score is better and depth equal or larger.
STC (7 threads): http://tests.stockfishchess.org/tests/view/586a4d090ebc5903140c64b2
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 120297 W: 18652 L: 18682 D: 82963
LTC (7 threads): http://tests.stockfishchess.org/tests/view/586e31b30ebc5903140c663d
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 57187 W: 7035 L: 6959 D: 43193
bench: 4940355
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2017-01-09 10:26:50 +01:00 |
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ElbertoOneandMarco Costalba
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46d066b041
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Remove piece condition in decrease lmr reduction check
STC: http://tests.stockfishchess.org/tests/view/584154780ebc5903140c55cf
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 40866 W: 7251 L: 7164 D: 26451
LTC: http://tests.stockfishchess.org/tests/view/5841e6e50ebc5903140c5605
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 62413 W: 7948 L: 7881 D: 46584
Bench: 5807913
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2016-12-04 09:28:55 +01:00 |
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ElbertoOneandMarco Costalba
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535435b7fc
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TrappedRook simplification
Just remove rank checks for rook and king for TrappedRook evaluation.
STC: http://tests.stockfishchess.org/tests/view/5833fdfc0ebc5903140c5050
LLR: 3.03 (-2.94,2.94) [-3.00,1.00]
Total: 34474 W: 6088 L: 5986 D: 22400
LTC: http://tests.stockfishchess.org/tests/view/58392f3f0ebc5903140c5276
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 48358 W: 6221 L: 6136 D: 36001
bench: 5536128
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2016-11-27 17:42:20 +01:00 |
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ElbertoOneandMarco Costalba
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c2c0e6b07d
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Remove redundant PvNode condition
After commit 6d58bf777c we always call PvNodes
with cutNode set to false.
No functional change.
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2016-06-24 08:46:36 +02:00 |
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ElbertoOneandMarco Costalba
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6d58bf777c
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On IID do not always search with cutNode = true
On IID now search with cutNode value instead of fixed value true.
STC (http://tests.stockfishchess.org/tests/view/575fa3860ebc5972faa15f67):
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 163974 W: 30744 L: 30874 D: 102356
LTC (http://tests.stockfishchess.org/tests/view/5763b0640ebc5972faa16075):
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 48363 W: 6611 L: 6528 D: 35224
Bench: 7806393
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2016-06-19 18:04:22 +02:00 |
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ElbertoOneandMarco Costalba
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e48c7547c5
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LMR reduction parameter tweak
More reduction for cut nodes, less for moves that escape a capture:
STC (http://tests.stockfishchess.org/tests/view/57548c1e0ebc59029919b247):
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 60165 W: 11519 L: 11149 D: 37497
LTC (http://tests.stockfishchess.org/tests/view/57555b570ebc59029919b260):
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 10353 W: 1493 L: 1317 D: 7543
Bench: 8902859
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2016-06-07 15:15:49 +02:00 |
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ElbertoOneandMarco Costalba
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20023ac9b8
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LMR Simplification
LMR simplification that also gives a slight ELO gain, especially at LTC:
STC (http://tests.stockfishchess.org/tests/view/574ec8e20ebc59029919b147):
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 32402 W: 5967 L: 5866 D: 20569
LTC (http://tests.stockfishchess.org/tests/view/574fbebf0ebc59029919b16d):
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 15103 W: 2103 L: 1975 D: 11025
Bench: 8248133
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2016-06-03 19:53:04 +02:00 |
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ElbertoOneandJoona Kiiski
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c13052f344
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Clean up depth reduction calculation
Might also be a slight speed up
No functional change
Resolves #593
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2016-02-28 13:40:47 +00:00 |
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