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Pentominous is an object placement puzzle where pentominoes must be located within the grid.


The objective is to divide the grid in pentominos, subject to the following rules:

  1. No two of the same pentominos, including rotations / reflections are allowed to touch.
  2. Letters indicate which pentomino occupies that cell, pentominos may contain any number of letters (including zero).


A standard 10x10 pentominous and its solution.

Pentominous Example
Pentominous Solution


Unless otherwise indicated, standard pentominous rules apply to all variants.

Pearl Pentominous: Every pentomino must contain one pearl.

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