Solve a 21×21 Codeword
Clue Detective 21×21 codeword puzzles are a great, absorbing activity for when you are looking to keep yourself occupied, such as a long-haul flight, or the morning/afternoon train commute.
These addictive brain teasers really give you an adrenaline rush, not to mention a sense of satisfaction when you realise you have cracked the code. The larger grid size also makes the words (generally) longer, more interesting and sesquipedalian.
All you need is your iPad and you are ready to go.
We also design codewords in a 13×13 and 15×15 size grid.