Solver-verified route
- Place Piece 1 across column 8 row 4, column 7 row 5, column 8 row 5, column 7 row 6.
- Place Piece 2 across column 6 row 3, column 7 row 3, column 8 row 3.
- Place Piece 3 across column 7 row 7, column 8 row 7.
- Place Piece 4 across column 7 row 8, column 8 row 8.
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 17.9 (grade 3 of 5).