From c39463fc6972bb62997a293a4fa99f7e85522c17 Mon Sep 17 00:00:00 2001
From: James Hochadel <james.hochadel@hey.com>
Date: Sat, 13 Mar 2021 12:07:09 -0500
Subject: [PATCH] Initialize scores with infinity instead of arbitrarily large
 scores

Also remove accidentally-added hash calls
---
 engines/alphabeta.go | 5 ++---
 engines/minimax.go   | 5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/engines/alphabeta.go b/engines/alphabeta.go
index 7852307..139fc2d 100644
--- a/engines/alphabeta.go
+++ b/engines/alphabeta.go
@@ -26,16 +26,15 @@ func (e *AlphaBetaEngine) alphabeta(pos *chess.Position, depth int, maxPlayer bo
 			value: e.evaluatePosition(pos),
 		}
 	}
-	pos.Hash()
 
 	bestScore := &positionScore{}
 	var comparator func(float64, float64) float64
 
 	if maxPlayer {
-		bestScore.value = -9999
+		bestScore.value = math.Inf(-1)
 		comparator = math.Max
 	} else {
-		bestScore.value = 9999
+		bestScore.value = math.Inf(1)
 		comparator = math.Min
 	}
 
diff --git a/engines/minimax.go b/engines/minimax.go
index 1e36bdb..050f8d5 100644
--- a/engines/minimax.go
+++ b/engines/minimax.go
@@ -26,16 +26,15 @@ func (e *MinimaxEngine) minimax(pos *chess.Position, depth int, maxPlayer bool)
 			value: e.evaluatePosition(pos),
 		}
 	}
-	pos.Hash()
 
 	bestScore := &positionScore{}
 	var comparator func(float64, float64) float64
 
 	if maxPlayer {
-		bestScore.value = -9999
+		bestScore.value = math.Inf(-1)
 		comparator = math.Max
 	} else {
-		bestScore.value = 9999
+		bestScore.value = math.Inf(1)
 		comparator = math.Min
 	}