Level 240 solution

Solver-verified route

1. Place Piece 1 across column 4 row 7, column 5 row 7, column 6 row 7, column 7 row 7.
2. Place Piece 2 across column 3 row 3, column 4 row 3, column 3 row 4.
3. Place Piece 3 across column 2 row 2, column 2 row 3, column 2 row 4.
4. Place Piece 4 across column 4 row 4, column 4 row 5, column 4 row 6.
5. Place Piece 5 across column 4 row 2, column 5 row 2, column 5 row 3, column 6 row 3.
6. Place Piece 6 at column 2, row 5.
7. Place Piece 7 at column 6, row 8.

Part of the "Seven lines" chapter. The solver certified 1000+ solving lines with 73% of in-between placements being dead ends, for a difficulty score of 18.7 (grade 4 of 5).