Sashukabe is a hybrid of Sashigane and Nurikabe, in which the cells in a grid are split into either shaded or unshaded.


The objective is to shade some cells, subject to the following rules:

  1. Each island will be part of an L-shaped polyomino exactly 1 cell wide.
  2. All shaded cells must form one stream, which is not allowed to contain "pools", i.e. 2x2 areas of shaded cells.
  3. Circles show the bend in the island with numbers in some circles showing how many cells make up that polyomino.
  4. Arrows are located at either end of the island and point towards the bend in it.


A standard 10x10 sashukabe puzzle and its solution.

Sashikabe Example
Sashikabe Solution