Shimaguni

Shimaguni

Shade one connected island in each region without letting neighbours match.

Controls

All shaded cells inside a region must form one connected island. A region number gives its exact shaded count. Regions without a number need at least one shaded cell. Shaded cells in neighbouring regions may not share an edge, and neighbouring regions must have different shaded counts. Tap a cell to cycle black, white and empty.

Logic

Logic · Deduction · Grid

Brain training · PuzGo

PuzGo