Friday 5 October 2012

World Puzzle Championship 2012: Round 12 Half Dominoes

This round contains a single puzzle for which we have 50 minutes to solve. This seems like a considerable time, but we'll see how it works out. It seems finishable.
The puzzle is a Samurai Half Dominoes, where the rows and columns are counted as a whole. So if it's on the same height but different 9x9 grids, they still cant repeat. It's an interesting variation and funnily enough it doesn't even mean you need a lot more clues than normal. Just as a note, the Half Dominoes are a seperate image as that was easier.

12 Half Dominoes:

Rules:
Place the given Half Dominoes in each 3x3 square so that each of the five 9x9 grids contains each half domino once. No Half Domino can be repeated in any row, column or main diagonal, even if they are in seperate 9x9 grids. Numbers on the outside indicate the amount of dots in that complete row, column or diagonal. Arrows with numbers indicate the direction of possibly ambiguous clues.


Click to enlarge



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