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Flip it! Fold it! Figure it out!
56 Tetromino Challenges!
A baffling brainteaser to wrap your mind around and put your fingers to the test. Fold, turn, loop, open, close, and bend. You'll soon discover the challenge behind Ivan's Hinge.
Go ahead, pick it up. We date you to put it back down!
1 Hinge Puzzle
56 Challenge Cards
How does it work?
1. Choose a challenge card. Note: each card features two puzzles
2. Manipulate Ivan's Hinge to recreate the pattern on the card.
Simply Flip & Fold!