What is Resonance Lock?

Resonance Lock is a free online puzzle game where you set phase angles on oscillators with different periods. When you run the simulation, all oscillators must align at the target tick simultaneously.

How many levels does Resonance Lock have?

Resonance Lock has 30 levels across 5 difficulty tiers, from 2-oscillator beginner puzzles to 5-oscillator expert challenges.

Is Resonance Lock free to play?

Yes! Resonance Lock is completely free to play in your browser. No download or registration required.

What is the Chinese Remainder Theorem?

The CRT states that if you have pairwise coprime moduli, there exists a unique solution to a system of modular congruences. In Resonance Lock, this means each puzzle has exactly one solution.

Resonance Lock — CRT Oscillator Alignment Puzzle

Resonance Lock

Each oscillator spins at its own period.
Set the phase angles so all pointers
align at the top target at the same tick!

Tap an oscillator to rotate its pointer.
Long-press or right-click for reverse.

Select Level

Resonance!

Resonance Lock

Resonance Lock — Free Online CRT Oscillator Alignment Puzzle

Select Level

Resonance!

Resonance Lock