full guide
Level 21
Block Out Level 21 is a triple-boss ladder. Break the framed `9` panel first, unwind the colorful middle strip second, and only then start shrinking the lower `16` and `18` panels.
ios / android · current iOS and Android catalog checked 2026-08-03
Blue Yellow Green Red Pink Purple
Confirm these board landmarks
Block Out Level 21 is a triple-boss ladder. Break the framed `9` panel first, unwind the colorful middle strip second, and only then start shrinking the lower `16` and `18` panels.
- Block Out Level 21 is a triple-boss ladder.
- Break the framed `9` panel first, unwind the colorful middle strip second, and only then start shrinking the lower `16` and `18` panels.
- The board mixes Blue, Yellow, Green and more.
- The opening layout is a color-sort grid.
- Clear matched tiles to finish the level.
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