Level 43 solution

Solver-verified route

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

Part of the "Double clear" chapter. The solver certified 6 solving lines with 98% of in-between placements being dead ends, for a difficulty score of 15.9 (grade 2 of 5).