Orthogonal-only square connection game. On your turn, place a friendly stone or flip an enemy stone in one of three predetermined patterns. Win by connecting your two opposite sides of the board with a chain of stones of your color.

Inventor: Luis Bolaños Mures

See BoardGameGeek: Morphos. Default 13×13. Player 1 connects north–south; player 2 east–west. Orthogonal adjacency. Pie rule.

Board sizes 9, 11, 13 (default), 15, 17.

Faster game with simplified capture formations. Deadlocks are not possible (simplified).

Place two new stones orthogonally adjacent, or capture one. Minimorph formations (double).

Captured stones must be placed back on the board by their owner. Minimorph formations (replace).

• Current engine version: 20250527 (2025-05-27). On Abstract Play since 2025-03-27.

• https://boardgamegeek.com/boardgame/208437/morphos