From 11916ae98b09786734bcc33d0a4b76c76e051b57 Mon Sep 17 00:00:00 2001
From: Calcitem <calcitem@outlook.com>
Date: Sat, 11 Jul 2020 18:13:40 +0800
Subject: [PATCH] =?UTF-8?q?=E7=A7=BB=E9=99=A4=20AIAlgorithm=20=E4=B8=AD?=
 =?UTF-8?q?=E7=A9=BA=E7=9D=80=E7=9B=B8=E5=85=B3=E4=BB=A3=E7=A0=81?=
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---
 src/search.cpp | 33 ---------------------------------
 src/search.h   |  3 ---
 2 files changed, 36 deletions(-)

diff --git a/src/search.cpp b/src/search.cpp
index 377aec6d..f2f7b423 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -415,29 +415,6 @@ Value AIAlgorithm::search(Depth depth, Value alpha, Value beta)
             bestValue -= depth;
         }
 
-#ifdef NULL_MOVE
-        if (depth % 2 == 1)
-        {
-            // TODO: WIP       
-            st->generateNullMove(moves);
-            st->generateChildren(moves, this, node);
-            do_null_move();
-            int moveCount = st->generate(moves);
-            if (moveCount)
-            {
-                st->generateChildren(moves, this, node->children[0]);
-                value = -search(depth - 1 - 2, -beta, -beta + 1, node->children[0]);
-                undo_null_move();
-
-                if (value >= beta) {
-                    bestValue = beta;
-                    return beta;
-                }
-            }
-
-        }
-#endif
-
 #ifdef TRANSPOSITION_TABLE_ENABLE
         TranspositionTable::save(bestValue,
                        depth,
@@ -583,16 +560,6 @@ void AIAlgorithm::undo_move()
     positionStack.pop();
 }
 
-void AIAlgorithm::do_null_move()
-{
-    pos->do_null_move();
-}
-
-void AIAlgorithm::undo_null_move()
-{
-    pos->undo_null_move();
-}
-
 #ifdef ALPHABETA_AI
 const char* AIAlgorithm::nextMove()
 {
diff --git a/src/search.h b/src/search.h
index af7b4fee..0c1f2ddb 100644
--- a/src/search.h
+++ b/src/search.h
@@ -168,9 +168,6 @@ public:
 
     void undo_move();
 
-    void do_null_move();
-    void undo_null_move();
-
 #ifdef TRANSPOSITION_TABLE_ENABLE
     void clearTT();
 #endif