Thread: Toughie
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Old 02-07-2014, 05:32 PM
passel3 passel3 is offline
Join Date: Oct 2013
Posts: 46

Once you take it as far as you can go, ask for a hint. The hint will explain "how" it deduces another square that you haven't marked. If that doesn't get you unstuck, then ask for another hint. Repeat until done and the solve will have been shown to you.
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