數墻(Nurikabe)規(guī)則，英文>>>Create white areas, surrounded with blackened cells which are linked to a continuous wall. The numbers in the grid indicate the size of the corresponding white areas. An area cannot contain more than one number. The wall cannot form any 2x2 square. White areas may touch each other only diagonally.

中文規(guī)則：在盤面中涂黑一些格子使得所有黑格橫豎連通為一個整體，并且沒有任何2*2的區(qū)域被完全涂黑。有數字的格子必須留白，每個橫豎連通的白格區(qū)域有一個數字，數值等于該區(qū)域格數。