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Passed file cleanup #2251

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@Rocky640 Rocky640 commented Jul 20, 2019

Merge the additive term S(5, 10) of #2250 into the PassedRank array.

This harmless change have a different bench because, the candidate passer evaluation
(those for which we apply bonus = bonus /2;)
will always get S(5, 10)/2 less compared to # 2250

Tested as a non-regression against #2250

Passed STC
http://tests.stockfishchess.org/tests/view/5d33427e0ebc5925cf0e6fa2
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 81459 W: 18174 L: 18171 D: 45114

Passed LTC
http://tests.stockfishchess.org/tests/view/5d335c8d0ebc5925cf0e731e
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 18525 W: 3176 L: 3052 D: 12297

Based on protonspring passed file simplification
Move the constant S(5, 10) additive term to the PassedRank array
Almost same as protonspring passed file simplification except for the
candidate passed pawn which will get a bit less (S(2.5, 5) exactly)

benh 3657324
Fixed a mistake in previous test, which dramatically changed the
std::min(f, ~f) result.
bench: 3453765
@snicolet
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Merged via 9dc57b6, congrats :-)

mstembera pushed a commit to mstembera/Stockfish that referenced this pull request Jul 31, 2019
Protonspring had a successful functional simplification that removes the
PassedFile array using a simple linear equation.

Merge the additive term S(5, 10) of protonspring passed file simplification
(pull request official-stockfish#2250)
into the PassedRank array. This harmless change has a different bench because
the candidate passer evaluation will always get less compared to official-stockfish#2250,
as we apply bonus = bonus /2.

Tested as a non-regression against official-stockfish#2250

Passed STC
http://tests.stockfishchess.org/tests/view/5d33427e0ebc5925cf0e6fa2
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 81459 W: 18174 L: 18171 D: 45114

Passed LTC
http://tests.stockfishchess.org/tests/view/5d335c8d0ebc5925cf0e731e
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 18525 W: 3176 L: 3052 D: 12297

Closes official-stockfish#2250
Closes official-stockfish#2251

Bench: 3859856
mstembera pushed a commit to mstembera/Stockfish that referenced this pull request Aug 1, 2019
Protonspring had a successful functional simplification that removes the
PassedFile array using a simple linear equation.

Merge the additive term S(5, 10) of protonspring passed file simplification
(pull request official-stockfish#2250)
into the PassedRank array. This harmless change has a different bench because
the candidate passer evaluation will always get less compared to official-stockfish#2250,
as we apply bonus = bonus /2.

Tested as a non-regression against official-stockfish#2250

Passed STC
http://tests.stockfishchess.org/tests/view/5d33427e0ebc5925cf0e6fa2
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 81459 W: 18174 L: 18171 D: 45114

Passed LTC
http://tests.stockfishchess.org/tests/view/5d335c8d0ebc5925cf0e731e
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 18525 W: 3176 L: 3052 D: 12297

Closes official-stockfish#2250
Closes official-stockfish#2251

Bench: 3859856
mstembera pushed a commit to mstembera/Stockfish that referenced this pull request Aug 29, 2019
Protonspring had a successful functional simplification that removes the
PassedFile array using a simple linear equation.

Merge the additive term S(5, 10) of protonspring passed file simplification
(pull request official-stockfish#2250)
into the PassedRank array. This harmless change has a different bench because
the candidate passer evaluation will always get less compared to official-stockfish#2250,
as we apply bonus = bonus /2.

Tested as a non-regression against official-stockfish#2250

Passed STC
http://tests.stockfishchess.org/tests/view/5d33427e0ebc5925cf0e6fa2
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 81459 W: 18174 L: 18171 D: 45114

Passed LTC
http://tests.stockfishchess.org/tests/view/5d335c8d0ebc5925cf0e731e
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 18525 W: 3176 L: 3052 D: 12297

Closes official-stockfish#2250
Closes official-stockfish#2251

Bench: 3859856
pb00068 pushed a commit to pb00068/Stockfish that referenced this pull request Sep 10, 2019
Protonspring had a successful functional simplification that removes the
PassedFile array using a simple linear equation.

Merge the additive term S(5, 10) of protonspring passed file simplification
(pull request official-stockfish#2250)
into the PassedRank array. This harmless change has a different bench because
the candidate passer evaluation will always get less compared to official-stockfish#2250,
as we apply bonus = bonus /2.

Tested as a non-regression against official-stockfish#2250

Passed STC
http://tests.stockfishchess.org/tests/view/5d33427e0ebc5925cf0e6fa2
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 81459 W: 18174 L: 18171 D: 45114

Passed LTC
http://tests.stockfishchess.org/tests/view/5d335c8d0ebc5925cf0e731e
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 18525 W: 3176 L: 3052 D: 12297

Closes official-stockfish#2250
Closes official-stockfish#2251

Bench: 3859856
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2 participants