Place one in each region
Place a queen counter in every outlined region of the six-by-six board. Each row and column also needs exactly one queen. Tap a square to cycle between undecided, queen and excluded. Region borders and marks help you compare areas without relying on colour alone.
Leave a square of space
Queens cannot touch, including at a diagonal corner. This is a region puzzle: distant queens on the same long diagonal are allowed. Do not apply chess’s full diagonal attack rule. A placed queen rules out its whole row and column plus neighbouring squares.
Read the three counts
Finish when all six regions, rows and columns have one queen and no pair touches. Exclusions are planning marks. Choose from six fixed boards. Undo reverses a mark; Restart restores that board. Hint suggests a rule without placing a queen. There is no clock.