A Chow is three consecutive suited tiles, a Pung is three identical tiles, a Kong is four identical tiles, and the pair is two identical tiles.
Special forms such as Seven Pairs and Thirteen Orphans also win. Under MCR, scoring patterns must total at least 8 points; Flower points do not satisfy this minimum. You may win by self-draw or another player’s discard.
Four plus one
Complete four groups and a matching pair.
Check patterns
Reach the 8-point minimum.
Declare Mahjong
Reveal the hand and score its patterns.