     
     func initBlocks() {
         let cards = (1...12).map { return String($0) }
-        let names = cards + cards
+        let skeleton = ["X"]
+        let names = cards + skeleton + cards
         let shuffledNames = GKRandomSource.sharedRandom().arrayByShufflingObjectsInArray(names).map{ $0 as! String }
         blocks = shuffledNames.map {
             let node = CardNode()

import SpriteKit
import GameplayKit

class GameScene: SKScene {
    
    var blocks:[CardNode]? = nil
    var btn:SKLabelNode? = nil
    var hiddenbtn:SKLabelNode? = nil
    
    override func didMoveToView(view: SKView) {
        /* Setup your scene here */

    }
    
    func blockTouched(touch: UITouch){
        guard state != .Init else { return }
        let location = touch.locationInNode(self)
        let idx = blocks?.indexOf{
            return $0.containsPoint(location)
