Sand Blocks Level 165 Walkthrough

Level 165 has aggressive sand volume — blocks spill 3-4 cells away. Rule: drop blocks 3 cells away from gaps (not 2). The 3-cell offset accounts for aggressive spill radius. If you drop directly on a gap, spill goes past the gap and wastes 2 cells. Level 165 becomes trivial with 3-cell offset discipline, nightmarish without it.