Need less directions

06/code.go

@@ -8,7 +8,7 @@ import (
 )
 
 var directions [][]int = [][]int{
-	{0, 1}, {1, 0}, {0, -1}, {-1, 0}, {1, 1}, {-1, -1}, {1, -1}, {-1, 1},
+	{0, 1}, {1, 0}, {0, -1}, {-1, 0},
 }
 
 type Point struct {