Sand Blocks Level 238 Walkthrough

Level 238 is medium-block dominant. Rule: cluster 3 medium in L-shape same color, drop 4th → 16-cell cascade. Set up 5 such cascades per level. Every drop without a cascade wastes 3 cells. Level 238 tests your medium-block clustering above all. Watch the video for cluster positions at drops 4, 10, 16, 22, 28.