Level 230 solution

Solver-verified route

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

Part of the "Seven lines" chapter. The solver certified 1000+ solving lines with 86% of in-between placements being dead ends, for a difficulty score of 19.0 (grade 4 of 5).