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Nurikabe

Hard

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Play Hard Nurikabe — ThePuzzleLabs

Try this Hard Nurikabe puzzle on ThePuzzleLabs.

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Classic

Click to cycle: unmarked → shaded → white → unmarked.

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Hard Nurikabe — what to expect

Hard Nurikabe uses 10×10 grids with more islands packed tighter together. This is where connectivity forcing becomes a real technique: if making a cell white would disconnect the sea, it has to stay black. Unique expansion also becomes important — when an island can only grow in one direction, that cell is locked in.

Rules & Strategy →Printable Puzzles →All Difficulties →