1
2
4
5
Combination
1-2-4-5 of Berend Jan van der Zwaag
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1
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Does it contain two non-4-touching dominoes? (Touching at the corners is allowed.) |
|
2
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Does it fit together with a heptomino in a 3x4 rectangle? |
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4
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Does it have line-symmetry? |
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5
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Can it be constructed using a domino and a straight tromino? |
| F | I | L | N | P | T | U | V | W | X | Y | Z | |
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1
|
N | Y | Y | Y | N | N | Y | Y | Y | N | N | Y |
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2
|
N | N | Y | N | Y | Y | Y | Y | N | N | Y | N |
|
4
|
N | Y | N | N | N | Y | Y | Y | Y | Y | N | N |
|
5
|
N | Y | Y | Y | Y | Y | N | Y | N | N | N | N |
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Solution 1 |
Solution 2 |
Solution 4  |
Solution 5
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