Conceal your secret code, outguess your opponent, deduce the solution, and amaze your foes. In this players try to crack each other's "code" - a sequence of secret numbers. Guess an opponent's secret number and it is revealed (by knocking it down). Guess incorrectly and you must reveal one of your own secret numbers! On each turn, a new number enters play, which helps you to narrow the possibilities and grow your own code. Common sense, intuition, and your "detective" skills will guide you to success.