Block Out: How to Beat Level 161

To beat Level 161 in Block Out, immediately clear out the column requiring the fewest transfers to create an empty buffer lane, then cycle mismatched blocks through that open space to consolidate matching colors.

Level 161 Win Conditions and Constraints

To complete Level 161, you must sort every block so that each column contains only one uniform color from bottom to top.

Movement follows two core constraints:

• A block can only be placed onto a matching color that has available capacity.
• A block can only move to a neutral space if that destination column is completely empty.

Because starting space is tightly restricted, splitting colors across multiple columns or placing conflicting colors into your only empty column causes an immediate deadlock.

Opening Phase: Opening Your First Transit Column

Do not make random matches across different stacks at the start. Scan the top layer of all columns to find matching block pairs that can merge immediately without using an empty lane.

1. Locate the column with the fewest blocks covering its base color.
2. Shift exposed top blocks onto existing matching stacks in neighboring columns.
3. Transfer the final remaining base blocks to reveal an entirely empty column.

Once cleared, treat this empty column strictly as a temporary transit lane. Never drop two mismatched blocks into it, as losing your only empty column prevents further legal transfers.

Mid-Stage: Sequencing Buried Layers

After securing a free column, unearth buried colors through controlled exchanges:

• Target high-frequency colors first: Prioritize the color that already has the most exposed blocks across the board.
• Move with an immediate destination: Only shift an obstructive block into the empty column if doing so exposes a block that can immediately merge onto a matching stack.
• Evacuate the buffer lane: As soon as the revealed block moves to its color group, transfer the temporary block out of the transit column into its rightful place.

Preventing Deadlocks and Finishing the Board

Deadlocks occur when partially assembled colors are scattered across too many columns, filling every open slot with different top colors.

To finish the stage cleanly:

• Commit each color to a single column: Once you begin building a color stack in a specific column, route all matching blocks there.
• Reduce top-surface variety: When several moves are possible, choose the move that decreases the total number of distinct colors exposed across the top of the board.
• Isolate the final two columns: Once most columns are filled and locked, use direct alternating transfers between the last two mixed columns, cycling base blocks through the open lane until all colors are separated.