Level 216 solution

Solver-verified route

1. Place Piece 1 across column 6 row 2, column 6 row 3.
2. Place Piece 2 at column 5, row 5.
3. Place Piece 4 at column 6, row 5.
4. Place Piece 3 across column 8 row 2, column 7 row 3, column 8 row 3, column 7 row 4.
5. Place Piece 5 across column 4 row 5, column 3 row 6, column 4 row 6, column 3 row 7.
6. Place Piece 6 across column 4 row 4, column 5 row 4, column 6 row 4.

Part of the "Final columns" chapter. The solver certified 720 solving lines with 92% of in-between placements being dead ends, for a difficulty score of 18.0 (grade 3 of 5).