fixing cache bug

1 files changed, 7 insertions, 1 deletions

diff --git a/src/bot.cpp b/src/bot.cpp
index ff7a771..0f8d12a 100644
--- a/src/bot.cpp
+++ b/src/bot.cpp
@@ -172,6 +172,8 @@ float minimax(int depth, Game *b, float alpha, float beta) {
     return EvaluateBoardForWhite(b, depth);
   }
 
+  bool shouldStore = true;
+
   float bestEval = b->turn ? -INFINITY : INFINITY;
   if (b->turn) {
     for (Move move : moves) {
@@ -185,6 +187,7 @@ float minimax(int depth, Game *b, float alpha, float beta) {
       alpha = std::max(alpha, bestEval);
 
       if (alpha >= beta) {
+        shouldStore = false;
         break; // *snips*
       }
     }
@@ -199,12 +202,15 @@ float minimax(int depth, Game *b, float alpha, float beta) {
 
       beta = std::min(beta, bestEval);
       if (alpha >= beta) {
+        shouldStore = false;
         break; // *snips*
       }
     }
   }
 
-  b->Transpositions->operator[](gameHash) = {depth, bestEval};
+  if (shouldStore) {
+    b->Transpositions->operator[](gameHash) = {depth, bestEval};
+  }
   return bestEval;
 }
 int PSTIndex(int square, bool white) { return white ? square : (56 ^ square); }