Great game. Haven't played in a very long time and enjoyed this. This applies to most Mahjong Solitaire implementations but my only feedback is how I always imagine if I had to physically shuffle and tile the board up to play and how there's no way all tiles would have the same orientation. Meaning, yes left&right would be the long sides but a seven dot might be 3 over 4 or 4 over 3. Having the same orientation makes the game much easier.