Supported sports
Classical, rapid, blitz and bullet chess (over-the-board or online). Also supports checkers and go.
Swiss table, Buchholz, Sonneborn-Berger, per-round pairings and ELO rating. For classical, rapid and blitz chess.
Points: 1 win, ½ draw, 0 loss. Tiebreakers: Buchholz, Sonneborn-Berger and head-to-head.
Buchholz = sum of opponents points · Pairings auto-generated each round
Classical, rapid, blitz and bullet chess (over-the-board or online). Also supports checkers and go.
Automatic pairings by points and rating, avoiding rematches. Tiebreakers by Buchholz and Sonneborn-Berger.
ELO recalculated after every game, public crosstable and per-player pairing history.
Automatic pairings, Buchholz, ELO and crosstable. FIDE-style, ready to go.