Level 168 solution

Solver-verified route

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

Part of the "Tall order" chapter. The solver certified 24 solving lines with 97% of in-between placements being dead ends, for a difficulty score of 20.0 (grade 5 of 5).