Brain puzzle aHeyawake

Brain puzzle aHeyawake is a logic-based puzzle.
It is a puzzle painting over a board side with black according to a rule.

1. Because there are 10 problems of the beginner play and 70 problems of the intermediate person play, the first person can enjoy it.
2. Because there are undo, an automatic preservation function, You can ease operation.
3. there are a function to reduce a screen and function to spread.
4. A record of the completion time is stored.
5. Because BGM 50 pieces prepare, You can choose a favorite thing."