Solver-verified route
- Place Piece 1 across column 5 row 5, column 6 row 5, column 7 row 5.
- Place Piece 2 at column 5, row 6.
- Place Piece 3 at column 6, row 6.
Part of the "Double clear" chapter. The solver certified 6 solving lines with 97% of in-between placements being dead ends, for a difficulty score of 14.6 (grade 2 of 5).