On-Core Software, LLC. 893 Sycamore Ave Tinton Falls, NJUnited States of America Website: http://www.on-core.com Technical Support:

Source URL: www.on-core.com

• Logic puzzles
• Recreational mathematics
• Games
• NP-complete problems
• Sudokuro
• Mathematics of Sudoku
• Mathematics
• Puzzle video games
• Sudoku