Killer Quadruples Sudoku by Philip Newman
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(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Chase down the solution to this Killer Quadruples Sudoku before it claims
you as i...
4 hours ago

1 comments:
I think it's on the hard end of "medium". Took me ~5:45.
Neat puzzle, though.
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