Combination 1-2-5-14 van Berend Jan van der Zwaag

1

Does it contain two non-4-touching dominoes? (Touching at the corners is allowed.)

2

Does it contain two non-4-touching dominoes? (Touching at the corners is allowed.)

5

Can it be constructed using a domino and a straight tromino?

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

5

N Y Y Y Y Y N Y N N N N

14

Y N Y Y N Y Y N N N Y Y


 Solution 1

Solution 2

Solution 5
 

Solution 14