This game is said to be ""Kakuro"",""Number Loop"" or Logical Circuit"",
and With the help of a number written down between coordinates, it is a puzzle making one ring in a board side.
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."