1 files changed, 11 insertions, 1 deletions
diff --git a/src/main/scala/me/robbyzambito/othello/game/Player.scala b/src/main/scala/me/robbyzambito/othello/game/Player.scala
index 925f7d2..c55f6db 100644
--- a/src/main/scala/me/robbyzambito/othello/game/Player.scala
+++ b/src/main/scala/me/robbyzambito/othello/game/Player.scala
@@ -13,6 +13,15 @@ import scala.util.Try
  * @param color The color of the player.
  */
 abstract class Player(val color: Position) {
+
+  /**
+   * The players decision on where to move based on
+   * the current board. It is assumed that there is
+   * at least one valid move.
+   *
+   * @param board
+   * @return
+   */
   def nextMove(board: Board): Move
 
   def canMove(board: Board): Boolean =
@@ -85,7 +94,8 @@ abstract class Player(val color: Position) {
           Some(
             Move(rowCount,
               colCount,
-              acc.map(_.takenPositions).getOrElse(List.empty) ::: vert.map(_.takenPositions).getOrElse(List.empty))
+              (acc.map(_.takenPositions).getOrElse(List.empty) :::
+                vert.map(_.takenPositions).getOrElse(List.empty)).distinct)
           )
         else None
       }).flatten