Ladders - an integral part of our lives. We do not think about it, but we constantly encounter them at home, at work, in various establishments and even on the street. Ladders regularly serve people, helping to climb heights that would not be accessible without steps. Let's pay tribute to all the stairs you used and continue to use in the game Old Stairs. Mahjong tiles are laid out in the form of an old staircase, which has served for a long time and must now be disassembled in parts. Look for pairs of identical tiles and remove from the field.