X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fpawns.cpp;h=ceacca82d53b8932fe8526fbbfdc97116ba3992e;hp=7bb82d929b2c9abc21415e768de0baa07cd4592a;hb=2e11388581aca5232b54437a4338012bcf7a5ff7;hpb=822695d4d3a9336dc54bfabd0996e75865358ae2 diff --git a/src/pawns.cpp b/src/pawns.cpp index 7bb82d92..ceacca82 100644 --- a/src/pawns.cpp +++ b/src/pawns.cpp @@ -2,7 +2,7 @@ Stockfish, a UCI chess playing engine derived from Glaurung 2.1 Copyright (C) 2004-2008 Tord Romstad (Glaurung author) Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad - Copyright (C) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad + Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad Stockfish is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -43,12 +43,6 @@ namespace { // Doubled pawn penalty const Score Doubled = S(18, 38); - // Lever bonus by rank - const Score Lever[RANK_NB] = { - S( 0, 0), S( 0, 0), S(0, 0), S(0, 0), - S(17, 16), S(33, 32), S(0, 0), S(0, 0) - }; - // Weakness of our pawn shelter in front of the king by [isKingFile][distance from edge][rank]. // RANK_1 = 0 is used for files where we have no pawns or our pawn is behind our king. const Value ShelterWeakness[][int(FILE_NB) / 2][RANK_NB] = { @@ -184,9 +178,6 @@ namespace { if (doubled && !supported) score -= Doubled; - - if (lever) - score += Lever[relative_rank(Us, s)]; } return score;