Rikivo Numbers is a free daily logic puzzle on a 4×4 grid. Place the numbers 1 to 16 in one continuous sequence. The shade of the square you leave sets the distance to the next number: white means one square, light grey two and dark grey three. Move horizontally or vertically, never diagonally. A new puzzle is available each day, with practice puzzles and a tutorial.

Submitted by Leigh Williams on Oct 12, 2026

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