From 1b0303b6e930babbaf41385f2a775bc57c8c8a22 Mon Sep 17 00:00:00 2001 From: Marco Costalba Date: Fri, 24 Jul 2009 14:26:49 +0100 Subject: [PATCH] Polynomial material balance after 100.000 games Verified it is equivalent to the tuning branch results with parameter values sampled after 100.000 games. Signed-off-by: Marco Costalba --- src/material.cpp | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/src/material.cpp b/src/material.cpp index 8380ab8f..63901d14 100644 --- a/src/material.cpp +++ b/src/material.cpp @@ -41,17 +41,17 @@ namespace { const Value BishopPairEndgameBonus = Value(97); // Polynomial material balance parameters - const Value RedundantQueenPenalty = Value(320); - const Value RedundantRookPenalty = Value(554); - const int LinearCoefficients[6] = { 1709, -137, -1185, -166, 141, 59 }; + const Value RedundantQueenPenalty = Value(358); + const Value RedundantRookPenalty = Value(536); + const int LinearCoefficients[6] = { 1740, -146, -1246, -197, 206, -7 }; const int QuadraticCoefficientsSameColor[][6] = { - { 0, 0, 0, 0, 0, 0 }, { 33, -6, 0, 0, 0, 0 }, { 29, 269, -12, 0, 0, 0 }, - { 0, 19, -4, 0, 0, 0 }, { -35, -10, 40, 95, 50, 0 }, { 52, 23, 78, 144, -11, -33 } }; + { 0, 0, 0, 0, 0, 0 }, { 31, -4, 0, 0, 0, 0 }, { 14, 267, -21, 0, 0, 0 }, + { 0, 7, -26, 0, 0, 0 }, { -3, -1, 69, 162, 80, 0 }, { 40, 27, 119, 174, -64, -49 } }; const int QuadraticCoefficientsOppositeColor[][6] = { - { 0, 0, 0, 0, 0, 0 }, { -5, 0, 0, 0, 0, 0 }, { -33, 23, 0, 0, 0, 0 }, - { 17, 25, -3, 0, 0, 0 }, { 10, -2, -19, -67, 0, 0 }, { 69, 64, -41, 116, 137, 0 } }; + { 0, 0, 0, 0, 0, 0 }, { -9, 0, 0, 0, 0, 0 }, { 49, 32, 0, 0, 0, 0 }, + { -25, 19, -5, 0, 0, 0 }, { 97, -6, 39, -88, 0, 0 }, { 77, 69, -42, 104, 116, 0 } }; // Unmapped endgame evaluation and scaling functions, these // are accessed direcly and not through the function maps. -- 2.39.2