Classic equipment: a double-six set of 28 dominoes. In this 2-player game, each side starts with 7 tiles.

Play: match one half of your tile to either open end of the chain. Doubles are shown crosswise. The first player to empty their hand wins the round.

Classic Draw: when you cannot play, draw from the boneyard until you find a legal tile or only the reserved final two remain; then pass.

Classic Block: the undealt tiles are not used. If you cannot match either end, pass. If both players are blocked, the lower pip total wins.

Scoring: the lower remaining pip total wins points equal to the difference between the two hands. A player who dominoes has zero pips, so they score all opponent pips. First to 100 wins the match.

Controls: click/tap a glowing legal tile. If it can fit both ends, choose LEFT or RIGHT. Smart Hint is a rewarded feature and never appears in the pause menu.