Abelian Sandpile — Self-Organized Criticality

Grains topple when height ≥ 4, redistributing to neighbors. The system self-organizes to a critical state with power-law avalanche sizes. Click the grid to drop grains.

Controls

Statistics

Total grains0
Avalanches0
Last size0
Max size0

Avalanche Size (log-log)

Power law slope ≈ −1 expected

Height Legend

■ 0 ■ 1 ■ 2 ■ 3 ■ 4+ (topple)