Imaginary Cube Puzzle 3H=6T
Clues
Clue1:
You can put 8 pieces as if they are in small boxes.
Where does the 9th piece fit in?
Clue 2:
Gather the trancated vertex at the center of the cube
to make a space.
Which piece comes at the center? H or T?
Clue 3:
One can fit 9 pieces so that there is no gap between pieces.
In such a solution, faces of the same shape will touch each other.
Clue 4:
Place one piece so that it leaves a space at the center of the box.
Put a piece so that it touches the piece with the same face.
Continue...