Does not related to Starsector, but largely the same:
Left-hand masochistic puzzles rules.
1. Go to a closest store and buy any new puzzle more than 6000 pieces (15000 recommended). You need hight quality puzzle where each piece has it's unique shape and does not have a twin in a set. Some manufacturers offer this.
2. Put all the pieces picture-downside. Remove all "corner" and "side" pieces - you don't need them.
3. Count remaining pieces. 90% goes to the "stockpile", 10% (picked randomly) goes to the "dump" - you need them later.
4. Clear a "table" - large plain area you will play on. Sometimes it is a floor, as you need really large area. Put the "stockpile" into that area (do not forget - picture downside).
5. "Left hand rule" takes it place. You can take any random puzzle from a "stockpile" by a left hand, but you can not return it there. If there are any puzzle in your left hand you can use your right hand to pick any puzzle from a stockpile to check if it fit left hand puzzle. If it fit - put the cluster on the table. If it not - put your right-hand piece back to stockpile. You can also fit your left-hand piece to existing cluster on a table. You are free too fit existing clusters between themselves by right hand only.
6. If you despair to find a fitted piece in a stockpile (it is possible, it not exist, as 10% are in the dump), you can put your left-hand puzzle into the dump.
7. Do 5-6 till stockpile is empty. Move your dump into a stockpile and use a "left hand rule" again. This time there are no option to put left-hand puzzle to a dump, as it not exist anymore. If you can not fit left-hand puzzle to anywhere - you loose, try again.
8. When the puzzle is ready, flip it over to check if the picture is correct. If not - you loose.
9. Have fun? HAVE FUN!!!