From 43d3e002881cc960cd05e8258f68bd4d5e5c2d75 Mon Sep 17 00:00:00 2001
From: Mark Bluemer <bluemer.mark@gmail.com>
Date: Tue, 2 May 2017 12:11:43 -0400
Subject: [PATCH] changed minimax back

---
 src/MinimaxSearch.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/MinimaxSearch.cpp b/src/MinimaxSearch.cpp
index 9acaeff..4846ba6 100644
--- a/src/MinimaxSearch.cpp
+++ b/src/MinimaxSearch.cpp
@@ -44,15 +44,17 @@ double MinimaxSearch::alphaBeta(bup &board, double alpha, double beta, int depth
     v = std::numeric_limits<double>::lowest();
     for (mup &move : board->actions()) {
       bup result = board->result(move);
-      alpha = std::max(alpha, alphaBeta(result, alpha, beta, depth + 1));
-      if (beta <= alpha) return beta;
+      v = std::max(v, alphaBeta(result, alpha, beta, depth + 1));
+      if (v >= beta) return v;
+      alpha = std::max(alpha, v);
     }
   } else {
     v = std::numeric_limits<double>::max();
     for (mup &move : board->actions()) {
       bup result = board->result(move);
-      beta = std::min(beta, alphaBeta(result, alpha, beta, depth + 1));
-      if (beta <= alpha) return alpha;
+      v = std::min(v, alphaBeta(result, alpha, beta, depth + 1));
+      if (v <= alpha) return v;
+      beta = std::min(beta, v);
     }
   }