Yahtzee

Five six-sided dice.; A scorecard per player, with an upper and lower section.; A cup for rolling (optional).

Each player takes a scorecard. Any number can play; the game is also perfectly playable solo.; Highest single roll goes first; play passes clockwise.; The game lasts exactly thirteen rounds — one per scorecard box.

You must fill a box every turn. If nothing fits, you are forced to enter zero somewhere — usually a high-value box you have given up on.

Six boxes — Aces through Sixes — each scoring the sum of dice showing that number. Score 63 or more across the upper section and earn a 35-point bonus, which is roughly three of each number.

Yacht: the public-domain ancestor — same three-roll structure, simpler scorecard, no bonuses.; Triple Yahtzee: three scorecards played simultaneously, with column multipliers.; Solitaire Yahtzee: the same game played alone against a target score.

You must fill a box every turn. If nothing fits, you are forced to enter zero somewhere — usually a high-value box you have given up on.

Six boxes — Aces through Sixes — each scoring the sum of dice showing that number. Score 63 or more across the upper section and earn a 35-point bonus, which is roughly three of each number.

A second or later Yahtzee, once the Yahtzee box is filled with 50, scores a 100-point bonus and may then be used as a joker in another box. If the Yahtzee box holds a zero, no bonus applies.