Crossnumbers - Puzzle Games

Crossnumbers is a logic-based math puzzle game where players interpret numerical clues and fill the grid. Intersections must satisfy both vertical and horizontal clues, leaving no room for guessing—every placement is validated by the surrounding equations. Each level has a single unique solution, and clues reveal only one number per use to guide the next step. Grid sizes increase in difficulty, starting with basic addition and subtraction and progressing to multiplication and more complex interactions.

Playing improves mental math, logical reasoning, and focused problem-solving. It works offline with no time pressure, offering fair challenge loops and self-testing. Designed for puzzle lovers, Crossnumbers emphasizes discovery, strategic placement, and the satisfaction of a correctly balanced grid.