Nurikabe Puzzle Book: Japanese Logic Puzzle Games

Nurikabe Puzzle Book to keep the brain trained and entertained.
50 Games with Solution included.
Large print
16x16 grid
The puzzle is played on a typically rectangular grid of cells, some of which contain numbers. Cells are initially of unknown color, but can only be black or white. Two same-color cells are considered "connected" if they are adjacent vertically or horizontally, but not diagonally. Connected white cells form "islands", while connected black cells form the "sea".

The challenge is to paint each cell black or white, subject to the following rules:

1. Each numbered cell is an island cell, the number in it is the number of cells in that island.
2. Each island must contain exactly one numbered cell.
3. There must be only one sea, which is not allowed to contain "pools", i.e. 2×2 areas of black cells.

Human solvers typically dot the non-numbered cells they've determined to be certain to belong to an island.

Like most other pure-logic puzzles, a unique solution is expected, and a grid containing random numbers is highly unlikely to provide a uniquely solvable Nurikabe puzzle.

Happy Solving :)

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