It was a
strange collection, … but so much larger
and so much more varied
that I think I never had more pleasure than in sorting them.

—Robert Louis Stevenson,
*Treasure Island*

Catalogue of Unitary Polyominoes. A unitary polyomino is one whose edges all have length 1. | |

Catalogue of Almost Unitary Polyominoes. An almost unitary polyomino is one whose edges all but one have length 1. | |

Catalogue of Almost Almost Unitary Polyominoes. An almost almost unitary polyomino is one whose edges all but two have length 1. | |

Catalogue of Unitary Polyiamonds. A unitary polyiamond is one whose edges all have length 1. | |

Catalogue of Blunt Polytans. A blunt polytan is one with no 45° corners. | |

Catalogue of Polypents. Enumerations and pictures of these neglected polyforms. | |

Catalogue of Polyhepts. Some more neglected polyforms. | |

Catalogue of Polyocts. Still more neglected polyforms. | |

Catalogue of Polyhops. Thomas Atkinson's hopscotch-style polyominoes. | |

Catalogue of Polyjogs. Polyforms formed of squares joined by half edges. | |

Catalogue of Polynars. László Molnár's shapes formed of squares joined by edges and half edges. | |

Catalogue of Polypentagrams. Polyforms formed of pentagrams joined edge to edge. | |

Catalogue of Polyhings. Polyforms formed of regular hexagons joined edge to edge or at vertices in parallel. | |

Catalogue of Polypennies. Polyforms formed by joining equal disks tangentially. |

Catalogue of Besźel Polycubes. Polycubes whose cells have a preponderance of even coordinates. | |

Catalogue of Polyrhons. Polyforms formed by joining rhombic dodecahedrons. | |

Catalogue of Polyprisms. Polyforms formed by joining equilateral-triangular prisms. | |

Catalogue of Polytets. Polyforms formed by joining platonic tetrahedra face to face. | |

Catalogue of Polypents on the Surface of a Dodecahedron. | |

Polycube Symmetries. In how many ways can a polycube be symmetrical? |

Back to Polyform Curiosities.

Col. George Sicherman [ HOME | MAIL ]