Star Battle #27 (October 31, 2026): solution and step-by-step

Each step is a deduction a person can make, in the order our solver found them. Rows and columns are counted from the top-left corner.

1. Cross out row 2, column 7. The coral region still needs two stars that don't touch — this cell can't be one of them, so it's crossed out.

2. Cross out row 9, column 7. The orchid region still needs two stars that don't touch — this cell can't be one of them, so it's crossed out.

3. Cross out 4 cells. Every free cell of the peach region is in row 1, so both that region's stars must be there — the rest of row 1 is crossed out.

4. Cross out 2 cells. The mint region still needs two stars that don't touch — these cells can't be part of any such placement, so they're crossed out.

5. Star at row 4, column 10. Every way to place the mint region's two stars without touching uses this cell — so it's a star.

6. Cross out 3 cells. Stars can't touch, not even diagonally — the cells around this star are crossed out.

7. Star at row 2, column 6. Every way to place the coral region's two stars without touching uses this cell — so it's a star.

8. Cross out 6 cells. Stars can't touch, not even diagonally — the cells around this star are crossed out.

9. Cross out 5 cells. Every free cell of the mint region is in row 2, so that region's last star must be there — the rest of row 2 is crossed out.

10. Star at row 3, column 8. The coral region has only one free cell left — that must be its last star.

11. Cross out 3 cells. Stars can't touch, not even diagonally — the cells around this star are crossed out.

12. Star at row 2, column 10. Row 2 has only one free cell left — that must be its last star.

53 more steps follow until all 20 stars are placed.

Stars by row: row 1: columns 1 and 3; row 2: columns 6 and 10; row 3: columns 1 and 8; row 4: columns 5 and 10; row 5: columns 3 and 7; row 6: columns 5 and 9; row 7: columns 2 and 7; row 8: columns 4 and 9; row 9: columns 2 and 6; row 10: columns 4 and 8.