X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.cpp;h=325f3e4db6b2ce023eadef0e575e0245237ec0f3;hp=55a4c4a2fa0e0ca56ae6fe3832a2649698ad3963;hb=df201175c6a0704800b1578e338c6e2a202234fe;hpb=262c380c4bf8dcadf07741ec458a9e6565ecf8b4

diff --git a/src/position.cpp b/src/position.cpp
index 55a4c4a2..325f3e4d 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -411,11 +411,14 @@ const string Position::pretty(Move move) const {
 }
 
 
-/// Position:hidden_checkers() returns a bitboard of all pinned / discovered check
-/// pieces, according to the call parameters. Pinned pieces protect our king and
-/// discovered check pieces attack the enemy king.
-
-Bitboard Position::hidden_checkers(Color c, Color kingColor) const {
+/// Position::check_blockers() returns a bitboard of all the pieces with color
+/// 'c' that are blocking check on the king with color 'kingColor'. A piece
+/// blocks a check if removing that piece from the board would result in a
+/// position where the king is in check. A check blocking piece can be either a
+/// pinned or a discovered check piece, according if its color 'c' is the same
+/// or the opposite of 'kingColor'.
+
+Bitboard Position::check_blockers(Color c, Color kingColor) const {
 
   Bitboard b, pinners, result = 0;
   Square ksq = king_square(kingColor);