Level 113 solution

Solver-verified route

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

Part of the "Column craft" chapter. The solver certified 86 solving lines with 93% of in-between placements being dead ends, for a difficulty score of 16.3 (grade 2 of 5).