You can play Wood Sudoku 99 anywhere you want, you don't have to be connected to the Internet to play. It's free, so don't hesitate to give it a try.

The game is designed to help you improve your cognitive abilities, memory, attention, concentration, and motor skills.

How to play:

1. Choose your mode: one-player or two-players.

2. Tap the screen to place the blocks. You can only place blocks in empty spaces, and no more than two blocks can be placed in each row, column, and box.

3. To clear the board, you need to match all the numbers. The blocks can be placed in any order.

4. The goal is to get as many points as you can.

5. When there are no more blocks to be placed, the game is over.