Number puzzles come in two flavours: those that reward arithmetic, like KenKen and Kakuro where digits must add, subtract, multiply or divide into cages and sums, and those that reward pattern, like 2048 and Nonogram where the numbers are really clues about shape and sequence.

Despite the name, none of them requires advanced mathematics — the most you will need is addition and a clear head. Beginners can start on small grids where the totals are obvious, while expert boards hide their logic deeper, so players of every level find a satisfying difficulty.

All games are free, work on any device, and include difficulty levels, daily challenges, and leaderboards.