SuDoku Chequer Puzzle A colourful variation to ponder over. The numbers 1 to 9 must appear in each set of coloured squares as well as the usual rows, columns and boxes and this must be taken into account to get the right solution. |
SuDoku Chequer Puzzle A colourful variation to ponder over. The numbers 1 to 9 must appear in each set of coloured squares as well as the usual rows, columns and boxes and this must be taken into account to get the right solution. |