1
2
7
14
Combination
1-2-7-14 of Berend Jan van der Zwaag
|
1
|
Does it contain two non-4-touching dominoes? (Touching at the corners is allowed.) |
|
2
|
Does it fit together with a heptomino in a 3x4 rectangle? |
|
7
|
Does it fit inside a 3x3 square? |
|
14
|
Can two copies construct a decamino with a fully enclosed 1x1 hole? |
| F | I | L | N | P | T | U | V | W | X | Y | Z | |
|
1
|
N | Y | Y | Y | N | N | Y | Y | Y | N | N | Y |
|
2
|
N | N | Y | N | Y | Y | Y | Y | N | N | Y | N |
|
7
|
Y | N | N | N | Y | Y | Y | Y | Y | Y | N | Y |
|
14
|
Y | N | Y | Y | N | Y | Y | N | N | N | Y | Y |
|
Solution 1 |
Solution 2 |
Solution 7  | Solution 14 |
