Block Out: How to Solve Level 634 and Manage the Buffer

To clear Level 634 in Block Out, prioritize uncovering shallow columns to match exposed colors immediately and keep at least two buffer slots open at all times. Level 634 features tightly stacked columns with interleaved color layers. Depositing blocks into the bottom buffer without completing matches will rapidly fill the tray, causing an unrecoverable deadlock.

Step-by-Step Level 634 Strategy

Successfully working through Level 634 requires shifting your focus as the board opens up:

Phase	Primary Objective	Key Action	Critical Failure Point
Early Phase	Surface clearing	Target columns with single-layer blocking caps	Filling buffer slots with unmatched single blocks
Mid Phase	Lane liberation	Empty a full column to create an open transfer lane	Splitting matching colors across separate columns
Late Phase	Buffer sweep	Direct remaining buffer pieces into complete sets	Moving pieces without an immediate matching exit

1. Clear Shallow Obstructions First

Scan the starting board for columns where a single blocking piece conceals a color that matches another exposed block. Move that cap to pair the underlying color immediately. Avoid pulling from columns where target colors are buried three or four tiers deep until the surface layer has been cleared.

2. Maintain Strict Buffer Limits

The bottom buffer tray functions as a temporary transit corridor, not permanent storage. Keep the following operational rules in mind:

Never fill more than half the buffer unless the incoming block directly triggers a set completion.
Maintain at least two empty buffer slots as a safety buffer for multi-step transfers.
Only move a piece into the buffer if that move exposes a playable match on the board.

3. Clear an Entire Column to Create a Free Lane

As soon as surface matches reduce the height of a short stack, focus on completely clearing that column. An empty column acts as an auxiliary holding space, allowing you to transfer intermediate colors without occupying precious buffer slots.

4. Consolidate and Sweep the Endgame

Once all buried layers are revealed, do not split identical colors across multiple columns. Consolidate matching fragments into dedicated stacks, then feed the remaining pieces directly out of your buffer tray to complete each set.