Block Out Level 859 Guide: Sorting Order and Buffer Tactics

To beat Level 859 in Block Out, clear exposed matching colors that immediately resolve into target slots before moving mixed-color stacks, and maintain at least two open buffer slots at all times. Level 859 packs multi-tier stacks into narrow lanes, meaning misplaced blocks quickly congest your transit buffer and trigger an irreversible deadlock.

Opening Priorities: Clear Surface Pairs First

The initial board interleaves color sets across deeply layered columns. Tapping stacked columns prematurely dumps mismatched intermediary pieces into your limited buffer slots.

Begin the level with these direct checks:

1. Scan surface tiles: Identify any top-layer blocks that share colors with directly accessible partners across the grid.
2. Execute zero-cost clears: Move pairs that match immediately without leaving an orphan piece sitting in your holding tray.
3. Leave split stacks untouched: If a matching partner is buried underneath conflicting colors, do not send the exposed block to the buffer until the excavation path is open.

Mid-Stage Move Priorities

Once surface matches are removed, the remaining layout consists of mixed columns capped by mismatched blockers. Treat your buffer tray as an active transfer line rather than temporary storage.

Evaluate your mid-stage moves using this priority hierarchy:

If your buffer fills to three uncompleted pieces, stop digging into new columns immediately. Shift focus entirely to the exposed board pieces that match the items currently occupying your tray. Clearing even one stalled color refunds holding capacity and restores safe movement.

Avoiding Deadlocks on Split Columns

The main failure point on Level 859 comes from pulling two matching pieces into the tray while the third piece remains trapped several layers deep.

Before tapping into any split stack, calculate the excavation cost:

• Count the number of intervening blocker blocks sitting directly on top of the piece you need.
• Compare that count against your currently available buffer slots.
• If uncovering the piece requires moving more intermediary blocks than you have open slots in your tray, leave the stack alone.

Clear adjacent columns first to expose alternate matches and reduce the clearance cost before attempting deep extractions.

Endgame Cleanup

Once the central bottlenecks are resolved, the board breaks down into shorter stacks of two or three blocks along the edges. Complete the final cleanup with these steps:

1. Target the dominant color: Count the remaining pieces and eliminate the color with the highest board count first to open maximum lane clearance.
2. Feed sets sequentially: Move blocks only when each placement directly completes an active target set.
3. Avoid speculative taps: Even with few remaining pieces, sending unmatched colors into the buffer without an open exit will cause an avoidable late-stage failure.