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The largest mind sports specialist in the heart of Amsterdam ♞ Games and puzzles since 1987
The aim is to find the brass ball. A unique, seven-stage, sequential discovery puzzle.
Difficulty: 7/10
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Machined from solid brass, Piston measures 48mm diameter, 96mm in height, and weighs 1.15kg.
The brass is left unfinished, leaving it to slowly patinate and darken with use.
Meest recente reviews
Piston - Felix Ure
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