Our digital puzzles are developed in HTML5, CSS and JavaScript and can be viewed across multiple devices (pc, tablet and smart phone) without requiring any plug-ins


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Each row and column contains the same number of O and X.

The same symbol never appears in three adjacent cells, horizontally or vertically (e.g. ?XX? must be OXXO).

Also, each row and each column is unique.

Grid Sizes 8x8 or 10x10

Format: txt data files, and .eps