One of the most surprising forms of Sudoku is the ‘Sudoku limit’. You must fill in each region column with the numbers 1 to 9. However, there are no regions and no cells contain any numbers. All we have to go on are the ‘limit’ (the cells with four numbers inside an ‘x’). These numbers indicate that the number is present in the cells opposite, up to the next boundary or the edge of the grid, if there is one. I came across this puzzle a very long time ago; it was a 5×5 grid with instructions written in Japanese (at the time, there was no Japanese translation software available online), so I worked out the rules of the game by looking at the solution and created grids of different sizes, such as these, which are 9×9. I have never known the real name of this puzzle or that of its inventor. If any of you know the answer, I’d be delighted to hear it. So I have called it Sudoku Limit. Here are two 9×9 grids.
Rules : Rules of Sudoku Limits
1)
Puzzle :cadre_12_000012.pdf
Solution :cadre_12_000012_sol.pdf
2)
Puzzle :cadre_12_000013.pdf
Solution :cadre_12_000013_sol.pdf
3)
Puzzle :cadre_12_000014.pdf
Solution :cadre_12_000014_sol.pdf
Au revoir.
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