Nightwatch hints for September 8, 2026

One square in this courtyard would shine on every square its neighbour has left, leaving that courtyard nowhere to stand.

Look at the leaf courtyard that includes the square at row 1, column 2, and its neighbour, the magenta courtyard that includes the square at row 4, column 4.

A lantern at row 1, column 4 would shine on every square the neighbouring courtyard has left, so that courtyard would have nowhere to stand — row 1, column 4 is out.

6 lanterns, one in each courtyard:

1. row 1, column 2
2. row 2, column 1
3. row 3, column 3
4. row 4, column 4
5. row 5, column 5
6. row 6, column 6