Apply Overlap to Multiple Blocks

Overlap also works when a line contains several clues, but each block must be compared only with itself.

Consider a ten-cell line with clues:

4 3

Earliest placement:

■ ■ ■ ■ × ■ ■ ■ · ·

Latest placement:

· · ■ ■ ■ ■ × ■ ■ ■

The first block of four overlaps in Cells 3 and 4.

The second block of three overlaps in Cell 8.

Therefore:

· · ■ ■ · · · ■ · ·

Be careful not to treat an overlap between two different clue blocks as a guaranteed filled cell.