Solver-verified route
- Place Piece 1 across column 3 row 4, column 4 row 4.
- Place Piece 2 across column 4 row 5, column 5 row 5, column 6 row 5.
- Place Piece 3 at column 8, row 6.
- Place Piece 4 across column 2 row 5, column 3 row 5, column 2 row 6, column 3 row 6.
Part of the "Corner work" chapter. The solver certified 24 solving lines with 97% of in-between placements being dead ends, for a difficulty score of 17.0 (grade 3 of 5).