From 0330696f87898c39860706ea9c7baebef669b0eb Mon Sep 17 00:00:00 2001
From: Bruno Raoult <braoult@gmail.com>
Date: Sat, 13 Apr 2024 06:50:15 +0200
Subject: [PATCH] pseudo_is_legal(): use sq_is_attacked() instead of
 sq_attackers()

---
 src/attack.c   | 1 -
 src/move-do.c  | 6 +-----
 src/move-gen.c | 4 ++--
 3 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/attack.c b/src/attack.c
index 7bed9b0..587c7fd 100644
--- a/src/attack.c
+++ b/src/attack.c
@@ -101,7 +101,6 @@ bitboard_t sq_attackers(const pos_t *pos, const bitboard_t occ, const square_t s
 {
     bitboard_t attackers = 0, tmp;
     bitboard_t sqbb = mask(sq);
-    //bitboard_t occ = pos_occ(pos);
     bitboard_t to;
     color_t opp = OPPONENT(c);
 
diff --git a/src/move-do.c b/src/move-do.c
index abb1ed0..18a2cde 100644
--- a/src/move-do.c
+++ b/src/move-do.c
@@ -148,12 +148,8 @@ pos_t *move_do(pos_t *pos, const move_t move) //, state_t *state)
  *
  * @return: pos.
  */
-pos_t *move_undo(pos_t *pos, const move_t move)//, const state_t *state)
+pos_t *move_undo(pos_t *pos, const move_t move)
 {
-//#   ifdef DEBUG_MOVE
-    //log(1, "new move: ");
-    //move_print(0, move, M_PR_NL | M_PR_LONG);
-//#   endif
     color_t them = pos->turn, us = OPPONENT(them);
     square_t from = move_from(move), to = move_to(move);
     piece_t piece = pos->board[to];
diff --git a/src/move-gen.c b/src/move-gen.c
index 22981f9..7ea6138 100644
--- a/src/move-gen.c
+++ b/src/move-gen.c
@@ -53,10 +53,10 @@ bool pseudo_is_legal(const pos_t *pos, const move_t move)
     if (unlikely(from == king)) {
         if (unlikely(is_castle(move))) {
             square_t dir = to > from? 1: -1;
-            if (sq_attackers(pos, occ, from + dir, them))
+            if (sq_is_attacked(pos, occ, from + dir, them))
                 return false;
         }
-        return !sq_attackers(pos, occ ^ kingbb, to, them);
+        return !sq_is_attacked(pos, occ ^ kingbb, to, them);
     }
 
     /* (2) - King is in check