This is an exciting sudoku variant played with only X's and O's, based on the rules of Tic-Tac-Toe. It is a new and inventive way to put your problem-solving skills to the test. It includes easy, medium and hard puzzles, as well as quick-palying 'Express Cubes'. Puzzle master David L. Hoyt presents Tic-Tac-Doku, an exciting sudoku variant played with only X's and O's. Based on tic-tac-toe rules, this innovative version of sudoku presents an irresistible invitation to put the problem-solving parts of your brain to work in a whole new way. Included here are easy, medium and hard puzzles, as well as quick-playing 'Express Cubes.' Whenever you're ready for a logic-puzzle challenge, reach for Tic-Tac-Doku to keep your mind sharp!
- ISBN10 1454900652
- ISBN13 9781454900658
- Publish Date 3 April 2012
- Publish Status Out of Stock
- Publish Country US
- Publisher Sterling Publishing Co Inc
- Imprint Sterling
- Format Paperback
- Pages 128
- Language English