W.G.H. Strijbos SKU: 17656


This difficult burr is comprised of 6 pieces and it requires 7 moves to remove the first element. Each piece must be maneuvered in the correct orderThis puzzle has internal voids and does not have a solid locking piece which distinguishes it from less difficult puzzles with the same external shape. Taking it apart is hard, but putting it back together is even trickier!

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