Logic Masters Deutschland e.V.

Outside Nurikabe

1. Blacken some grids to become "walls", and make all the walls connected vertically and horizontally into a whole, and there is no wall of 2×2 area. The white area separated by the wall is the "island", and the island and the island can be diagonally adjacent;

2. There are several red prompt numbers on the left (upper) side of each row (column), which means that the row (column) passes through several islands, and the numbers indicate the area of ​​each island;

3. The number of tips does not consider the order.

4.The number of external prompts is divided into N segments, corresponding to several different islands. If the prompt number is 3-3-5-7, there will be 4 different islands corresponding to the row/column, and the corresponding areas are 3 3 5 7.

Standard Nurikabe:

Rules: Shade some empty cells black so that the grid is divided into white areas, each containing exactly one number and with the same area in cells as that number. Two white areas may only touch diagonally. All black cells must be connected with each other, but no 2×2 group of cells can be entirely shaded black.

Author: 真笑(洪卫华), from China, this question comes from his personal blog.