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