'White jigsaw puzzle' is used as training of the astronaut.
Concentration is forged.
Let's assemble pieces and assemble the puzzle touching.
Pieces can be chosen from 16 pieces.
The current solved speed is recorded. Let's challenge my past record.
*It is possible to interrupt by pushing the HOME button while playing the puzzle. The interruption data disappears if the interruption data is not chosen when restarting.