Particles are in Brownian Motion. Each particle has its value.
If two particles with the same values touch each other they become blinking for a few seconds. You may merge such equal particles, while they are blinking - click on a blinking particles. When merge, particle value increases to the sum of those two merged particles. Try to reach this way the particle with the value of 2048.
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CONTROLS: Click on the particle, while it is blinking.