Block Out Level 121

The board is split into two sections, with the top section containing blue and yellow blocks and the bottom section featuring a central gear mechanism that must be cleared to progress.

Move the blue block in the top right corner to the right, clearing space to begin cycling blocks through the gates.

Clear the blue block through the right-side gate, creating more room to maneuver in the top section.

Shift the yellow block to the left, aligning it to eventually reach its matching gate.

With the top section cleared, the central gear mechanism is now accessible, allowing for the final phase of block sorting.

Move the blue block through the right-side gate, further clearing the board for the remaining colors.

Clear the final green block through the bottom gate to successfully complete the level.