100
When you land on the space marked "Take three pieces of cheese from rival with most", do as it says, even if there are cheese pieces in the pile. If the opponent with the most cheese has less than 3 pieces, just take the number of pieces the opponent does have. If two or more opponents are tied for the most cheese pieces, you may take them all from one opponent or divide the amount between them. Your turn is then over.
What is Mouse Trap?