Level 245 solution

Solver-verified route

1. Place the stack from Slot 2 onto hex (2, -1).
2. Place the stack from Slot 1 onto hex (-1, 0).
3. Place the stack from Slot 2 onto hex (1, -1).
4. Place the stack from Slot 3 onto hex (2, -2).
5. Place the stack from Slot 3 onto hex (-2, 1).
6. Place the stack from Slot 1 onto hex (1, -1).
7. Place the stack from Slot 2 onto hex (2, 0).
8. Place the stack from Slot 1 onto hex (-1, 2).
9. Place the stack from Slot 2 onto hex (1, 0).
10. Place the stack from Slot 3 onto hex (-2, 0).
11. Place the stack from Slot 1 onto hex (0, 2).
12. Place the stack from Slot 2 onto hex (-2, 1).
13. Place the stack from Slot 3 onto hex (0, -1).
14. Place the stack from Slot 2 onto hex (-1, 0).
15. Place the stack from Slot 1 onto hex (-1, -1).
16. Place the stack from Slot 3 onto hex (-1, 0).
17. Place the stack from Slot 1 onto hex (-1, 1).
18. Place the stack from Slot 2 onto hex (-2, 1).
19. Place the stack from Slot 3 onto hex (-2, 1).
20. Place the stack from Slot 3 onto hex (1, -2).
21. Place the stack from Slot 1 onto hex (1, -1).
22. Place the stack from Slot 2 onto hex (1, -2).
23. Place the stack from Slot 1 onto hex (1, -2).
24. Place the stack from Slot 2 onto hex (0, -1).
25. Place the stack from Slot 3 onto hex (0, -1).
26. Place the stack from Slot 2 onto hex (0, -1).
27. Place the stack from Slot 3 onto hex (-1, 1).
28. Place the stack from Slot 1 onto hex (-1, -1).
29. Place the stack from Slot 1 onto hex (-1, 0).

The solver clears this board in 29 placements. Hex coordinates are axial (q, r) from the board center.