Block Out level guide
Block Out Level 421 Walkthrough
Level 421 packs a stair-stepped board behind a vertical 4-count shutter; clear the exposed top chamber, remove each revealed red row, and reserve the center for outlined cyan and purple connected shapes.
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How to Solve Block Out Level 421 — Full Solution
- Remove the exposed long cyan row, then clear the reachable red and yellow groups from the upper pack through their matching gates.
- Send the lower green column down once its lane opens, creating a pocket below the top rectangle.
- Take the remaining exposed blue/cyan bars and purple column until the orange-outlined 4-count shutter retracts.
- Clear the revealed right-side yellow rows and red groups before committing a large shape to the staircase.
- Work the upper cyan and blue columns out, then remove the short purple and orange marked pieces through their edge routes.
- Remove the lower yellow and red groups, never leaving the long red row across the center-right junction.
- Route the outlined cyan horizontal bar across the open center, then take the outlined cyan vertical piece to the lower-right cyan gate.
- Shift the outlined purple L through the cleared middle and send it through the top purple gate.
- Finish the remaining cyan bar and remove the final red row through the right red gate for the empty-board completion.
Colors in this level:
Cyan, Blue, Red, Orange, Purple, Yellow, Green
Common Mistakes to Avoid
- Parking a long red row across center-right and dividing the staircase before the connected pieces turn.
- Trying to route an outlined cyan or purple shape before the right reservoir's ordinary blocks are gone.
Quick Tips for Block Out Level 421 (quick clues)
- Clear each long red row as soon as its matching right gate becomes reachable.
- Keep the central staircase empty until the connected cyan and purple shapes are ready to turn.
Board notes 5 details
- Layout
- A dense upper rectangle sits over a descending left staircase, while an orange-outlined purple shutter marked 4 hides the full right reservoir. Cyan, blue, red, orange, purple, yellow, and green groups share numbered edge gates.
- Goal
- Reduce the right shutter from 4 to zero, clear the revealed horizontal traffic, and route the connected cyan bars and purple L through the center before the 1:40 timer expires.
- Opening
- Take the long cyan row and exposed red/yellow groups, then send the lower green column down to create the first pocket beneath the top pack.
- Danger Zone
- A revealed long red row parked across center-right cuts off the staircase and leaves no turning room for the outlined cyan bar or purple L.
- Mechanics
- A vertical 4-count shutter creates a second reservoir, and outlined cyan/purple connected pieces later require full-footprint lanes.
Frequently Asked Questions
What should you clear before the connected pieces in Block Out Level 421?
Remove the long red rows and ordinary right-side groups first; their space is the turning bay for the outlined cyan bars and purple L.
What does the purple panel marked 4 do?
It seals the right reservoir. Clearing the exposed upper pack reduces it to zero and reveals the second half of the board.