# Triabolo-Tetrabolo Pair Oddities

A polyabolo *oddity*
is a symmetrical figure formed by an odd number of copies of
a polyabolo.
Symmetrical figures can also be formed with copies of two
different polyaboloes.
Here are the smallest known fully symmetric polyaboloes with an odd
number of tiles, formed by copies of a given triabolo and tetrabolo,
using at least one of each.

See also
Diabolo-Triabolo Pair Oddities,
Diabolo-Pentabolo Pair Oddities,
Pentomino Pair Oddities,
Hexiamond Pair Oddities,
Pentahex Pair Oddities,
and Trikite-Tetrakite Pair Oddities,

Helmut Postl and Johann Schwenke found some new and improved solutions.
### 5 Tiles

### 7 Tiles

### 9 Tiles

### 11 Tiles

### 13 Tiles

### 15 Tiles

### 17 Tiles

### 19 Tiles

### 21 Tiles

### 25 Tiles

### 43 Tiles

### 49 Tiles

### Unsolved Pairs

Last revised 2022-09-22.

Back to Polyform Oddities
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Polyform Curiosities

Col. George Sicherman
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