Solver-verified route
- Place Piece 1 across column 3 row 4, column 3 row 5.
- Place Piece 4 across column 2 row 5, column 2 row 6.
- Place Piece 2 at column 3, row 2.
- Place Piece 3 across column 2 row 3, column 3 row 3, column 4 row 3, column 4 row 4.
Part of the "Column craft" chapter. The solver certified 24 solving lines with 96% of in-between placements being dead ends, for a difficulty score of 18.0 (grade 3 of 5).