Nurikabe & Sudoku
“Widely regarded as the world’s most prolific wellspring of logic games and brainteasers ... if anyone comes up with the next craze, it will be Nikoli”—The New York Times
Just a few simple rules lead to an endless variety of fascinating logical possibilities with nurikabe. Shade the grid so that it contains a connected “river” of black squares. Each number in the grid is part of a different island, and the number indicates how many white squares that island contains. Also, no 2-by-2 square in the grid may be colored entirely black.