Sand Blocks Level 158 Walkthrough

Level 158 sends sticky blocks every 4-5 drops. Rule: sticky blocks go ONLY in the 4 corners. If corners are full, hammer one corner to clear it, then drop the sticky block. Never drop a sticky block in the open board — that cell becomes permanent. Sticky blocks in corners are harmless (they'd be cleared last anyway). Level 158 becomes trivial with corner discipline.