alpha beta bug fix

mbluemer · May 2, 2017 · 8d88071 · 8d88071
1 parent af5822f
commit 8d88071
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/MinimaxSearch.cpp b/src/MinimaxSearch.cpp
@@ -54,7 +54,7 @@ double MinimaxSearch::alphaBeta(bup &board, double alpha, double beta, int depth
       bup result = board->result(move);
       v = std::min(v, alphaBeta(result, alpha, beta, depth + 1));
       if (v <= alpha) return v;
-      beta = std::max(beta, v);
+      beta = std::min(beta, v);
     }
   }