Filters
The Traveling Salesman Puzzle - Allen Rolfs
Six Congruent Pieces - Allen Rolfs
Star Cluster Puzzle - unknown
Leprechaun's Dilemma - Patterson G. Feeney
Spiral Galaxy Puzzle - Allen Rolfs
Unicorn Puzzle - Allen Rolfs
Diagonal Cube - Stewart Coffin
The Bag Lady - Allen Rolfs
Drumsticks - Vladimir Belnov
The forgotten Coffin - Stewart Coffin
Old Anchor Puzzle - unknown
Congruent Octacubes - Mike Reid
Burr Circus - Stewart Coffin