Thermometer-Yin Yang/en

Instructions

Thermometers: Fill the thermometers, starting at the circled end, such that the numbers at the borders give the number of filled fields in that row or column. The thermometers may also be empty.

Yin Yang: Fill each empty cell with either a black circle or a white circle. All white circles should form a single interconnected area and similarly all black circles should form a single interconnected area. There cannot exist any 2x2 cell region consisting of same colour circles anywhere in the grid.

History

Variant developed by Fatih Kamer Anda (Turkey).