RULES : Classic Sudoku rules apply. Additionally,
- Killer Sudoku rules apply, i.e., there are some cages in the grid. The number on the top left corner of each cage is equal to the sum of the digits in that cage. Digits do not repeat inside a cage.
- Little Killer Sudoku rules apply, i.e., the numbers with arrows outside the grid indicate the sum of the digits appearing in the cells in the corresponding direction. Numbers may repeat in the direction of the arrow.
- Renban Sudoku rules apply, i.e., each grey line contains consecutive numbers, in any order.
This one took me ages. Although I found the right SET immediately, it still took me a long time to see the intended implication.
ReplyDeleteSpectacular construction again.
Thank you for your feedback. Once you understand the interactions between the set theory and the variants, it's not difficult cracking this sudoku.
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