Sand Blocks Level 521 Walkthrough
10/21/2026
Overview
Sand spill exploit on Level 521. Full video walkthrough.
Step-by-step walkthrough
Level 521 has aggressive sand spill radius. Drop blocks 3 cells diagonally from gaps → spill fills 3 cells (gap + 2 adjacent). Direct-on-gap drops waste 2 cells. Master 3-cell diagonal and Level 521 becomes 40% faster. If dropping directly on gaps, restart and try diagonal — the difference is 15 drops saved per level.
💡 Pro tip
3-cell diagonal from gaps. Spill fills gap + 2 cells. Never direct.