Online since 2002. Over 3300 puzzles, 2600 worldwide members, and 270,000 messages.

Bandaged BrainballBrainballs with several pieces glued together. There are 12 meaningful variants. 6 are implemented here.
BrainballSpin the number ring, and twist the ends to flip seven of the thirteen numbers over.
K├╝blbeck BrainballAn advertisement for whole sale traders for car spare parts in east Bavaria and Upper Austria.

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