A line of 10 coins with the same number changes to a coin with one higher number. Coins can be moved anywhere, even to empty lines or on coins with different numbers. You can add coins at any time. The game is cleared if you make a coin with the number 10! The faster the clear time, the higher the score. coin sorting, puzzle game, speed run, number puzzle, kids game, strategy game, brain teaser, number matching, challenge, fun, educational, puzzle, coins, 1 to 10, reaction time, logic, thinking skills