Combination 1-2-3-9  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?

3

Does it fit together with two copies of another pentomino in a 3x5 rectangle?

9

Does it fit inside a 3x3 square?

  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

3

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

9

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

 Solution 1

Solution 2


Solution 3

 
Solution 9