Bullion13

Bullion13 is a logic-puzzle. The aim of the game is to collect/pile up all 13 coins that are initially placed on the grid strategically maneuvering the bulldozers within a given maximum number of single movements. Bulldozers are selected and moved individually by touching them and pressing the 'play' or 'single step' button. Bulldozers turn clockwise (if possible) when reaching the grid's border or other barriers. Hitting coins result in piling them up and pushing them forward. Bulldozers pushing coins also try to turn clockwise when hitting barriers (then being unable to do 180 degrees turns). The player can take back single steps or start from the beginning at all time.