Oldtool ..... If so, that makes for a very complicated puzzle.....
Hopefully the solution indicates the piece and the rotation direction... for example the light green piece, indicating it needs to be rotated clockwise horizontally... all rotations indicated are 90° only... any 180° rotations would be displayed as 2 steps... though I don't think any puzzles have that. There is enough wiggle room inside the box, and the pieces are so place to permit rotation. Some of the prior moves sets the piece up for rotation. The inner dimensions of a box is 2mm wider (in all 3d) than the assembled pieces... which allows for any slight imperfection alignments of cubes during glue up.
If your first cut is too short... Take the second cut from the longer end... LBD
