Unequal

Unequal is a Latin square puzzle enhanced with inequality signs, where you fill the grid so that adjacent numbers obey “greater than” and “less than” clues.

Unequal is a logic-based number puzzle that puts a clever twist on the classic Latin square. Played on an n×n grid, the goal is to fill every row and column with the numbers 1 through n—with no repeats in any row or column—while also satisfying a set of inequality clues (">" or "<") placed between adjacent cells.

These inequality signs indicate that one cell's number must be greater than or less than its neighbor's. For example, if a “>” appears between two cells, the number on the left must be larger than the one on the right.

Puzzles range from small 4×4 grids (ideal for beginners) to larger 7×7 or even 9×9 layouts for advanced solvers. Despite its minimalist appearance, Unequal offers deep logical depth—often requiring you to consider chains of implications, hidden singles, and forced placements based on the interplay between inequalities and Latin constraints.

Fill in the grid with numbers from 1 to the grid size so that each number appears exactly once in every row and column, and all "<" signs represent true inequalities—that is, the number at the pointed end is smaller than the number at the open end.

To enter a number, click on a square to select it, then type the number using your keyboard. To erase a number, select a square and press Backspace.

To add or remove a pencil mark (indicating a number you think might belong in that square), right-click the square and then type the number.