Choose a game mode
Local 1v1 Play on the same screen with a friend vs AI (Easy) Stone-count minimax, 0.1s per turn vs AI (Medium) Stone-count minimax, 1s per turn vs AI (Hard) Stone-count minimax, 5s per turn vs AI (Very Hard) Stone-count minimax, 60s per turn Online Multiplayer Play with a friend over the internet Active Games Resume your ongoing online games Cataclysm Expansion: new maps, 2v2, and 3-player FFA Leaderboard Top rated players Annotate Positions Help train Sigil's AI by labeling ambiguous positions Account Sign in for ranked play and ratings Rulebook Official rules (PDF)
Empty board start; both players blink onto any node for their first move.