- Givens take the shape of silly decorations. There is nothing else to say about these.
- The tree (anything shaded green or brown) acts as a fortress. Which is to say numbers placed in the fortress must be strictly greater than those placed in the immediately adjacent cells outside the fortress;
- Silver circles (fairy lights?! Tinsel!?!) marking some pairs of adjacent cells are as in Parity Sudoku. Which is to say one of the numbers to be placed must be odd and the other must be even. Not all such pairs are marked
- White circles (erm, stars!?) marking some pairs of adjacent cells mean the corresponding two numbers to be placed must be consecutive. Not all such pairs are marked.
Nice and easy. Enjoy!
#300 Christmas Tree Sudoku – rated hard
All puzzles © Tom Collyer 2009-14.
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