From b966adf103bd4a8b08141d9fd189f5ad6744bfdd Mon Sep 17 00:00:00 2001 From: Marco Costalba Date: Sun, 8 Jan 2012 09:58:03 +0100 Subject: [PATCH] Halve rook on open file bonus for endgame After 42206 fast games TC 2"+0.05 Mod vs Orig 12871 - 16849 - 12486 ELO +3 (+- 2.6) Signed-off-by: Marco Costalba --- src/evaluate.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/evaluate.cpp b/src/evaluate.cpp index e2d8ac33..50240031 100644 --- a/src/evaluate.cpp +++ b/src/evaluate.cpp @@ -155,8 +155,8 @@ namespace { const Score QueenOn7thBonus = make_score(27, 54); // Rooks on open files (modified by Joona Kiiski) - const Score RookOpenFileBonus = make_score(43, 43); - const Score RookHalfOpenFileBonus = make_score(19, 19); + const Score RookOpenFileBonus = make_score(43, 21); + const Score RookHalfOpenFileBonus = make_score(19, 10); // Penalty for rooks trapped inside a friendly king which has lost the // right to castle. -- 2.39.2