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Reversi

Turn the moonwell. Claim the last light.

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Free · No account · Plays on morassgames.com

A fantasy Reversi board of glowing sun and moon seals inside a brass observatory

HOW TO PLAY

Outflank the rival constellation.

  1. Place a seal so one or more straight lines of rival seals lie between your new seal and one already yours.
  2. Every enclosed seal turns to your side. If you have no legal placement, the turn passes; the fuller side wins when neither can move.
  3. Choose any observatory trial, or play a full board against one of three rivals or a companion beside you.

All 120 trials are open from the beginning. The release build reconstructs each position from the canonical opening, proves it has exactly one winning first move against exact resistance, and replays a complete winning witness. Each trial keeps a named public fastest time and top ten.