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