Non-linear bonus for pawn count #1734
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Bench: 4316409
Bench: 4689689
Bench: 4858929
Bench: 4681496
Bench: 4800073
Bench: 4681496
|
Merged via 41cc4eb, congrats to all! |
mstembera
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Aug 20, 2018
This patch introduces a non-linear bonus for pawns, along with some (linear) corrections for the other pieces types. The original values were obtained by a massive non-linear tuning of both pawns and other pieces by GuardianRM, while Alain Savard and Chris Cain later simplified the patch by observing that, apart from the pawn case, the tuned corrections were in fact almost affine and could be incorporated in our current code base via the piece values in types.h (offset) and the diagonal of the quadratic matrix (slope). See discussion in PR#1725 : official-stockfish#1725 STC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 42948 W: 9662 L: 9317 D: 23969 http://tests.stockfishchess.org/tests/view/5b6ff6e60ebc5902bdba1d87 LTC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 19683 W: 3409 L: 3206 D: 13068 http://tests.stockfishchess.org/tests/view/5b702dbd0ebc5902bdba216b How to continue from there? - Maybe the non-linearity for the pawn value could be somewhat tempered again and a simpler linear correction for pawns would work? Closes official-stockfish#1734 Bench: 4681496
mstembera
pushed a commit
to mstembera/Stockfish
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Aug 21, 2018
This patch introduces a non-linear bonus for pawns, along with some (linear) corrections for the other pieces types. The original values were obtained by a massive non-linear tuning of both pawns and other pieces by GuardianRM, while Alain Savard and Chris Cain later simplified the patch by observing that, apart from the pawn case, the tuned corrections were in fact almost affine and could be incorporated in our current code base via the piece values in types.h (offset) and the diagonal of the quadratic matrix (slope). See discussion in PR#1725 : official-stockfish#1725 STC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 42948 W: 9662 L: 9317 D: 23969 http://tests.stockfishchess.org/tests/view/5b6ff6e60ebc5902bdba1d87 LTC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 19683 W: 3409 L: 3206 D: 13068 http://tests.stockfishchess.org/tests/view/5b702dbd0ebc5902bdba216b How to continue from there? - Maybe the non-linearity for the pawn value could be somewhat tempered again and a simpler linear correction for pawns would work? Closes official-stockfish#1734 Bench: 4681496
mstembera
pushed a commit
to mstembera/Stockfish
that referenced
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Sep 3, 2018
This patch introduces a non-linear bonus for pawns, along with some (linear) corrections for the other pieces types. The original values were obtained by a massive non-linear tuning of both pawns and other pieces by GuardianRM, while Alain Savard and Chris Cain later simplified the patch by observing that, apart from the pawn case, the tuned corrections were in fact almost affine and could be incorporated in our current code base via the piece values in types.h (offset) and the diagonal of the quadratic matrix (slope). See discussion in PR#1725 : official-stockfish#1725 STC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 42948 W: 9662 L: 9317 D: 23969 http://tests.stockfishchess.org/tests/view/5b6ff6e60ebc5902bdba1d87 LTC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 19683 W: 3409 L: 3206 D: 13068 http://tests.stockfishchess.org/tests/view/5b702dbd0ebc5902bdba216b How to continue from there? - Maybe the non-linearity for the pawn value could be somewhat tempered again and a simpler linear correction for pawns would work? Closes official-stockfish#1734 Bench: 4681496
mstembera
pushed a commit
to mstembera/Stockfish
that referenced
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Sep 4, 2018
This patch introduces a non-linear bonus for pawns, along with some (linear) corrections for the other pieces types. The original values were obtained by a massive non-linear tuning of both pawns and other pieces by GuardianRM, while Alain Savard and Chris Cain later simplified the patch by observing that, apart from the pawn case, the tuned corrections were in fact almost affine and could be incorporated in our current code base via the piece values in types.h (offset) and the diagonal of the quadratic matrix (slope). See discussion in PR#1725 : official-stockfish#1725 STC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 42948 W: 9662 L: 9317 D: 23969 http://tests.stockfishchess.org/tests/view/5b6ff6e60ebc5902bdba1d87 LTC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 19683 W: 3409 L: 3206 D: 13068 http://tests.stockfishchess.org/tests/view/5b702dbd0ebc5902bdba216b How to continue from there? - Maybe the non-linearity for the pawn value could be somewhat tempered again and a simpler linear correction for pawns would work? Closes official-stockfish#1734 Bench: 4681496
lantonov
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Sep 30, 2018
This patch introduces a non-linear bonus for pawns, along with some (linear) corrections for the other pieces types. The original values were obtained by a massive non-linear tuning of both pawns and other pieces by GuardianRM, while Alain Savard and Chris Cain later simplified the patch by observing that, apart from the pawn case, the tuned corrections were in fact almost affine and could be incorporated in our current code base via the piece values in types.h (offset) and the diagonal of the quadratic matrix (slope). See discussion in PR#1725 : official-stockfish#1725 STC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 42948 W: 9662 L: 9317 D: 23969 http://tests.stockfishchess.org/tests/view/5b6ff6e60ebc5902bdba1d87 LTC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 19683 W: 3409 L: 3206 D: 13068 http://tests.stockfishchess.org/tests/view/5b702dbd0ebc5902bdba216b How to continue from there? - Maybe the non-linearity for the pawn value could be somewhat tempered again and a simpler linear correction for pawns would work? Closes official-stockfish#1734 Bench: 4681496
mstembera
pushed a commit
to mstembera/Stockfish
that referenced
this pull request
Oct 18, 2018
This patch introduces a non-linear bonus for pawns, along with some (linear) corrections for the other pieces types. The original values were obtained by a massive non-linear tuning of both pawns and other pieces by GuardianRM, while Alain Savard and Chris Cain later simplified the patch by observing that, apart from the pawn case, the tuned corrections were in fact almost affine and could be incorporated in our current code base via the piece values in types.h (offset) and the diagonal of the quadratic matrix (slope). See discussion in PR#1725 : official-stockfish#1725 STC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 42948 W: 9662 L: 9317 D: 23969 http://tests.stockfishchess.org/tests/view/5b6ff6e60ebc5902bdba1d87 LTC: LLR: 2.97 (-2.94,2.94) [0.00,5.00] Total: 19683 W: 3409 L: 3206 D: 13068 http://tests.stockfishchess.org/tests/view/5b702dbd0ebc5902bdba216b How to continue from there? - Maybe the non-linearity for the pawn value could be somewhat tempered again and a simpler linear correction for pawns would work? Closes official-stockfish#1734 Bench: 4681496
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This patch introduces a non-linear bonus for pawns, along with some
(linear) corrections for the other pieces types.
The original values were obtained by a massive non-linear tuning of both
pawns and other pieces by GuardianRM, while Alain Savard and Chris Cain
later simplified the patch by observing that, apart from the pawn case, the
tuned corrections were in fact almost affine and could be incorporated in
our current code base via the piece values in types.h (offset) and the diagonal
of the quadratic matrix (slope). See discussion in PR#1725 :
#1725
STC:
LLR: 2.97 (-2.94,2.94) [0.00,5.00]
Total: 42948 W: 9662 L: 9317 D: 23969
http://tests.stockfishchess.org/tests/view/5b6ff6e60ebc5902bdba1d87
LTC:
LLR: 2.97 (-2.94,2.94) [0.00,5.00]
Total: 19683 W: 3409 L: 3206 D: 13068
http://tests.stockfishchess.org/tests/view/5b702dbd0ebc5902bdba216b
How to continue from there?
• Maybe the non-linearity for the pawn value could be somewhat tempered
again and a simpler linear correction for pawns would work?
Closes #1734
Bench: 4681496