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6 piece burr
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Twist-Key Burr
The designer is unknown.
A
B
C
D
E
F
Pieces
6
D
-
E
are congruent.
Length
6+
Holes
0
Solutions
2 / 2
Moves
2
Rotation required.
thankful to
Theo Geerinck
May 10, 2018 by k16@chiba.email.ne.jp