Frequently asked questions

Each pool starts at 1,500. We compare your final points against each opponent: ahead is a win, equal points a draw, behind a loss. A stronger opponent is worth more. Equal scores share the result, regardless of seat-order tiebreaks. First places include ties.

Rated Hong Kong, Sichuan and Sanma tables play one hand; Chinese Classical and Taiwanese play four rounds. Choose Bullet (2s + 5s reserve), Blitz (3s + 10s), Standard (5s + 20s) or Relaxed (15s + 60s). Reserve resets each hand. Casual tables may be untimed. Quick Play uses Standard. Calls use the base allowance without reserve; opening exchanges and suit choices get at least 15 seconds. The clock keeps running after a disconnect. On timeout, an available win is claimed, optional calls pass, and a legal drawn tile (or the last legal discard) is discarded. Sichuan opening timeouts exchange the first legal same-suit triple and declare the least numerous suit missing. Final hand points decide placement, except Classical and Taiwanese which uses final match scores. Each variant has its own rating, starting at 1,500, with 10 provisional games. Casual and local practice never change ratings.

Quick play and public rated tables count toward your rating. Four-player Riichi games use an East round and a timed clock. Bullet, Blitz, Standard and Relaxed contribute to the same four-player Riichi rating. Our labelled roster bots can play rated games, including against people. Your rating and game count are public. Anonymous practice computers, private tables, single hands and imported records never affect ratings.

Planet pairwise Elo v1: each game changes a rating by (32 ÷ number of opponents) × the sum of actual result minus expected result against each opponent. Expected result is 1 ÷ (1 + 10 raised to (opponent rating − your rating) ÷ 400). We keep full precision and round only for display. Provisional status lasts for the first 10 games; it is not a statistical confidence interval.

Completed games count once. When the Standard and Relaxed pools were combined, their earned rating changes and game counts were carried into one Riichi history. Previously unrated games remain unrated. Ratings measure results over many games, not move accuracy. This is an early beta; calibration and fair-play tooling will evolve, and any future reset will be announced.

A started rated table cannot be cancelled by its host. Clocks keep running after a disconnect and make the documented timeout moves until you return. Do not use engine assistance, multiple accounts to manipulate results, or coordinate with opponents. Use a player profile to report concerns privately. Reports require moderator review; automatic cheat detection is not available.