What is Suberi?

Suberi is a new sliding puzzle game with familiar mechanics. Suberi means something like "sliding" or "slipping" in Japanese.

• The game is played on a rectangular 2D grid of any size. Even small 3x3 puzzles can be challenging.
• Walls may exist between any two adjacent grid cells.
• There are one or more pieces on the board.
• Pieces can move up, down, left, or right.
• Pieces must continue moving (sliding) in the chosen direction until they hit an obstacle: either a wall or another piece.
• Pieces may not leave the playing field (e.g. if there is no wall to stop its move)
• There are one or more target squares on the board.
• The puzzle is solved when all target squares are covered by the correct piece.

This set of rules makes Suberi a superset of the 15 Puzzle, Lunar Landing, and Ricochet Robots.