diff --git a/scala/day1.scala b/scala/day1.scala
new file mode 100644
index 0000000..ec2166a
--- /dev/null
+++ b/scala/day1.scala
@@ -0,0 +1,56 @@
+object TicTacToe {
+  val board = new Array[Char](9)
+  var mark = 'X'
+
+  def tick(horizontal: String, vertical: String) {
+    val x = horizontal match {
+      case "left" => 0
+      case "middle" => 1
+      case "right" => 2
+      case _ => 0
+    }
+
+    val y = vertical match {
+      case "up" => 0
+      case "middle" => 3
+      case "down" => 6
+      case _ => 0
+    }
+
+    val index = x + y 
+    if (board(index) == 'X' || board(index) == 'O') {
+      println("Spot is already taken!")
+      return
+    }
+
+    board(index) = mark
+
+    isWinner('X')
+    isWinner('O')
+
+    mark = mark match {
+      case 'X' => 'O'
+      case 'O' => 'X'
+      case _ => 'c'
+    }
+  }
+
+  def isWinner(mark: Char) {
+    if ((board(0) == mark && board(1) == mark && board(2) == mark) ||
+        (board(3) == mark && board(4) == mark && board(5) == mark) ||
+        (board(6) == mark && board(7) == mark && board(8) == mark) ||
+        (board(0) == mark && board(3) == mark && board(6) == mark) ||
+        (board(1) == mark && board(4) == mark && board(7) == mark) ||
+        (board(2) == mark && board(5) == mark && board(8) == mark) ||
+        (board(0) == mark && board(4) == mark && board(8) == mark) ||
+        (board(2) == mark && board(4) == mark && board(6) == mark)) {
+          println("Gewinner: " + mark)
+        }
+  }
+}
+
+TicTacToe.tick("left", "up")
+TicTacToe.tick("right", "up")
+TicTacToe.tick("left", "middle")
+TicTacToe.tick("middle", "middle")
+TicTacToe.tick("left", "down")