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Nurikabe puzzles and instructionsPlay free Nurikabe puzzles:
How to solve Nurikabe puzzles
In a Nurikabe puzzle you start with a mostly-empty grid that contains some numbered squares.
Shade in some squares so that every given number in the puzzle remains as part of a continuous unshaded area of the stated number of squares. There must be exactly one number per unshaded area (so no unshaded areas without numbers, and no unshaded areas with more than one number). Unshaded areas must have shaded squares or the edges of the puzzle around them on all sides - in other words, they cannot touch one another (except diagonally).
A very important second rule is that shaded squares cannot form any solid 2x2 (or larger) areas. This is often key to solving the puzzles. Unshaded areas can be any shape you like. And finally a third important rule: all the shaded squares must form one single continuous area.
Notice also how all of the shaded squares form a single area, so you can travel from any shaded square to any other, and that there are no 2x2 shaded areas. One of the nice things about Nurikabe is that there are various ways to think about solving a puzzle, all of which can help when you get stuck. You can look for 2x2 areas that can only be reached by one (or a limited number) of unshaded areas, or you can try growing areas from the existing numbers - or you can do the converse, growing regions that must be there to prevent a 2x2 shaded area but which you don't yet know the size of. Every Nurikabe puzzle only ever has one possible solution, and it can always be reached via reasonable logical deduction. In other words, guessing is never required. Nurikabe puzzles on puzzlemix appear at a wide range of sizes and difficulties, usually from 10x10 upwards.
Other types of puzzle
It's not just Nurikabe you can solve online at puzzlemix. You can also solve logic puzzles that include these:
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Are you searching for help with Nurikabe puzzles? Stuck on solving Nurikabe? Don't know the instructions for Nurikabe? Need Nurikabe instructions? Want solving hints and tips for Nurikabe? Then puzzlemix is the place for you to play Nurikabe puzzles online.
External links
Looking for printed Nurikabe puzzles? Visit Sudoku Xtra for puzzle magazines and books. Or are you looking for a Nurikabe puzzle supplier? If so then check out Any Puzzle Media, my puzzle production company.
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