Solver-verified route
- Place Piece 1 across column 3 row 2, column 3 row 3.
- Place Piece 2 at column 4, row 6.
- Place Piece 3 across column 2 row 5, column 3 row 5, column 4 row 5.
- Place Piece 4 across column 2 row 1, column 2 row 2, column 2 row 3, column 2 row 4.
Part of the "Column craft" chapter. The solver certified 24 solving lines with 97% of in-between placements being dead ends, for a difficulty score of 15.4 (grade 2 of 5).