From 1a20d727019548de69314a90ae59a3b8a76b4ae7 Mon Sep 17 00:00:00 2001
From: Joona Kiiski <joona.kiiski@gmail.com>
Date: Thu, 6 Jan 2011 12:13:28 +0200
Subject: [PATCH] Parse halfmove clock and fullmove number from FEN

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---
 src/position.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/position.cpp b/src/position.cpp
index cf2c7bac..71556a56 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -264,7 +264,15 @@ void Position::from_fen(const string& fen, bool c960) {
           st->epSquare = fenEpSquare;
   }
 
-  // 5-6. Halfmove clock and fullmove number are not parsed
+  // 5. Halfmove clock
+  int hmc;
+  if (ss >> hmc)
+      st->rule50 = hmc;
+
+  // 6. Fullmove number
+  int fmn;
+  if (ss >> fmn)
+      startPosPlyCounter = (fmn - 1) * 2 + int(sideToMove == BLACK);
 
   // Various initialisations
   castleRightsMask[make_square(initialKFile,  RANK_1)] ^= WHITE_OO | WHITE_OOO;
-- 
2.39.2