Tetracube-Pentacube Pair Oddities

Introduction

A tetracube is a solid made of 4 equal cubes joined face to face. There are 8 tetracubes, counting distinct mirror images.

A pentacube is a solid made of 5 equal cubes joined face to face. There are 29 pentacubes, counting distinct mirror images.

A polyform oddity or Sillke Figure is a polyform with binary symmetry at least, tiled by an odd number of copies of a given polyform.

Here I show polycubes with full symmetry and an odd number of cells, formed by joining copies of a given tetracube and a given pentacube. The solutions are the smallest known to me. The figures shown are the numbers of tiles used.

If you find a smaller solution, please write.

See also Pentacube Pair Oddities.

Table of Results

 ABEFGHIJKLMNPQRSTUVWXYZ
I11911911911712511712511111712587117111111117117125117125125267125125
K63812763113571252757932557276363939381732711111381
L27672775752775277575937327272775752775751057527
N8181819981117125811191091177911311311711781758111711710581
Q1118181117125117618111911122511711311311711711711927213?117123
S7575818175751097575871298127757575817567751478775
S′817575817587
T5749495757575757575725572757575757275757255757

25 Cells

27 Cells

49 Cells

57 Cells

61 Cells

63 Cells

67 Cells

73 Cells

75 Cells

79 Cells

81 Cells

87 Cells

93 Cells

99 Cells

105 Cells

109 Cells

111 Cells

113 Cells

117 Cells

119 Cells

123 Cells

125 Cells

129 Cells

147 Cells

213 Cells

225 Cells

267 Cells

Unsolved

Last revised 2023-02-10.


Back to Polyform Oddities < Polyform Curiosities
Col. George Sicherman [ HOME | MAIL ]