full guide

Level 43

Block Out Level 43 is a dense tetromino board centered on a large blue cross-shaped block that dominates the center-right and blocks four directions at once. Red L-shapes fill the left and lower areas, green blocks sit in the lower-right...

hard

ios / android Β· current iOS and Android catalog checked 2026-08-03

Blue Red Green Yellow

Confirm these board landmarks

Block Out Level 43 is a dense tetromino board centered on a large blue cross-shaped block that dominates the center-right and blocks four directions at once. Red L-shapes fill the left and lower areas, green blocks sit in the lower-right, and yellow blocks are scattered in the center-left. The solve peels from the edges inward: extract the red L-shapes first, shift the blue cross once it has room, then finish the green and yellow blocks through the bottom exits.

  • Block Out Level 43 is a dense tetromino board centered on a large blue cross-shaped block that dominates the center-right and blocks four directions at once.
  • Red L-shapes fill the left and lower areas, green blocks sit in the lower-right, and yellow blocks are scattered in the center-left.
  • The solve peels from the edges inward: extract the red L-shapes first, shift the blue cross once it has room, then finish the green and yellow blocks through the bottom exits.
Compare with the documented source board

My board is different Compare with source

Video walkthrough

Quick tips

  1. The blue cross blocks four directions at once β€” do not try to move it until the surrounding L-shapes are thinned.
  2. Clear the red L-shapes from the left edge first to create the most room.
  3. Think in chain clears. The best move is the one that sets up the next two moves, not just the quickest current match.

Step-by-step solution

Step-by-step solution

  1. 1

    Move 1

    Slide a small piece out through the top exit to create the first gap.

  2. 2

    Move 2

    Extract the red L-shaped blocks from the left side through the side exits.

  3. 3

    Move 3

    Thin the yellow blocks in the center-left to give the blue cross room to shift.

  4. 4

    Move 4

    Rotate the blue cross-shaped block once the surrounding space is wide enough.

  5. 5

    Move 5

    Slide the green blocks toward the bottom exit after the cross has moved.

  6. 6

    Move 6

    Clear the remaining red and yellow fragments through the available exits.

  7. 7

    Move 7

    Finish with the last block once the board is mostly empty.

Common failure points

Trying to force the blue cross through a narrow gap before the surrounding L-shapes are thinned β€” the cross needs clearance on multiple sides to move.

Ignoring the left-side red L-shapes and starting from the bottom, which leaves the center too tight for the cross to rotate.

Sources

Sources

Verification status: source verified. Solutions are matched to the source board before publication.

FAQ

Why might my Level 43 board look different?

Game version, platform or staged rollout differences can change a board layout.

Should I use a booster?

This Variant records booster use as unknown. Match the board before treating that note as applicable.