Sand Blocks Level 21 Walkthrough

Level 21 introduces 5 new block shapes including the T-block and Z-block. Rule for all shapes: place them flat against existing stacks, not floating. If a shape doesn't fit flush, don't force it — reset and try a different spot. T-blocks are perfect for filling gaps — their narrow tail fits 1-cell holes. Z-blocks are tricky — they need a 2-cell stair gap.