The yaku encyclopedia

Declare that you are one tile from winning, with a closed hand, by betting a 1,000-point stick.

Win within one go-around of your riichi declaration, with no calls in between.

Complete a closed hand by drawing the winning tile yourself.

A closed hand of four sequences and a valueless pair, won on a two-sided (ryanmen) wait.

A hand made entirely of number tiles 2 through 8 — no terminals, no honors.

Two identical sequences — same numbers, same suit — in a closed hand.

A triplet (or kan) of dragons, your seat wind, or the round wind — 1 han each, open or closed.

Win by self-drawing the final tile of the live wall — “scooping the moon from the sea bottom.”

Win by ron on the final discard of the hand — “netting the fish from the river bottom.”

Win on the replacement tile you draw after declaring a kan — “blossom on the ridge.”

Win by taking the tile an opponent adds to an existing pon to upgrade it into a kan.

Declare riichi on your first discard of the hand, before any call — worth 2 han instead of 1.

Seven different pairs. One of the standard exceptions to the four-sets-plus-a-pair pattern, alongside kokushi musou.

The same numbered sequence in all three suits: characters, circles, and bamboo.

The sequences 1-2-3, 4-5-6, and 7-8-9 in one suit — a straight through the whole suit.

Every set — and the pair — contains at least one terminal (1 or 9) or honor tile.

A hand of four triplets (or kans) and a pair — no sequences at all.

Three triplets you completed yourself, without pon — the rest of the hand can be open.

Declare three kans in one hand — open, closed, or added, in any mix.

The same numbered triplet in all three suits.

Every tile in the hand is a terminal or an honor — no 2 through 8 anywhere.

Triplets of two dragon types and a pair of the third.

The whole hand uses a single suit plus honor tiles.

Chanta without honors: every set and the pair contains a terminal, honors excluded.

Two separate pairs of identical sequences in a closed hand.

The entire hand is one suit — the highest-value regular yaku in the game.

If the hand ends in a draw and every tile you discarded is a terminal or honor — none claimed by anyone — you score a mangan.

A non-dealer wins by ron before their first draw, with no calls made — valued anywhere from mangan to yakuman depending on the ruleset.

One of each of the thirteen terminal and honor tiles, plus a duplicate of any one of them.

Four triplets, all formed without calling.

Triplets of all three dragon tiles — white, green, and red.

Triplets of three wind tiles and a pair of the fourth wind.

Triplets of all four wind tiles.

The whole hand is honor tiles — winds and dragons only.

Every tile in the hand is a terminal — 1s and 9s only, no honors.

Every tile is green: bamboo 2, 3, 4, 6, 8 and the green dragon only.

1112345678999 in a single suit plus one more tile of that suit — closed only.

Declare four kans in one hand — then win with the single remaining pair.

The dealer's starting fourteen tiles are already a complete hand.

A non-dealer completes their hand on their very first draw, before any call.

A hand that reaches 13 or more han through sheer accumulation is scored as a yakuman.