Welcome to Kuromasu. Your goal: find all the black squares. Cells are either teal or black. The board starts with some teal squares revealed, with a number. The number shown is how many teal squares this cell will touch, vertically or horizontally, when the full puzzle is solved. Most of those cells are hidden, you have to figure out which ones are teal and which are black.

Elements will turn red if a move you've made makes something impossible. Black cells cannot touch. Teal squares cannot be trapped.

The little number in a cell is how many more teal squares needed here.

You might need to use 'reveal a square' - but try not to! Once you think you've got it, hit the 'Finished' button to see if you got it right!

Good luck!