City Mahjongg - Version 1.0 The city never sleeps with City Mahjongg, where you can play all day and night long.Mahjongg tiles can be removed by clicking matching pairs off the board. Only open tiles can be clicked in this puzzle game. Mahjongg tiles are open when one vertical side is not blocked by anything. Season Mahjongg tiles can be matched with any other seasonal tile, and this also goes with flower Mahjongg tiles.