Ready to crack the code? This 3D safe puzzle comes together to make a real safe with a lock combination lock. The wood pieces are already cut and assemble without any nasty chemicals or glue needed. A great gift for dad!
A 3D safe puzzle
Made from natural wood
Pre-cut pieces, no glue assembly
Measures: 7.7 x 7.3 x 6.9 inches
179 pieces, takes about 6-7 hours to complete
Considering safe-cracking as a profession? This might be just where you should start. Build your own safe with a personal 3-digits lock combination, store your most precious items in the safe (jewelry or candy, your choice), and then promptly forget your combination!
Follow the handy steps in the instructions to master the mix of slow knob twists and careful listening to tumbler movements that will open the lock. Will you retrieve your items, or will you have to hire a locksmith? Try it and see.
How to create a custom lock combination for the model Safe? Let’s suppose you would like to put the code 321: A=3, B=2, C=1 (Technically number C - can be only 1, 2, 6 or 7) P1, P2, P3 - plugs in the discs Formula: P3 - P2 = B - A + 8 (mod 10) P1 = P2 + B – C (mod 10)
where A, B and C are the digits of the wanted code.
In this case you should use matching method to find the correct values. As you can see, this system of equations satisfy such values P1 = 1, P2 = 0, P3 = 7 (plugs in the discs)
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