Tock is a Cross and Circle game in the style of Pachisi, an Indian game played since the first millennium BC. Tock's exact origins are unclear, but traditionally it is believed that it originated with the early settlers of Quebec, Canada.
At the beginning of each round players are dealt a number of cards which they play in turns to move their tokens around the board. If at any time a token lands exactly on the field occupied by another token then the moved token replaces the resting one (which is placed back into the corresponding player's starting area). If a player on his turn has no cards he can play with his tokens (or which he can't play against the other players, like a 5, 10 or Queen in some variations) then he must discard his entire remaining hand and wait for the next hand to be dealt.