How to Beat Levels 173 and 174 in Block Out

To clear Levels 173 and 174 in Block Out, preserve at least one empty tube at all times while consolidating high-frequency color blocks into single-color columns. If all tubes become filled with mixed colors, you lose the ability to shift pieces and reach buried colors, creating a board deadlock.

Core Sorting Principles

Solving these dense color-sorting puzzle stages requires structured board management. Apply these rules to maintain control over available space:

• Maintain a Buffer Slot: Keep one tube completely clear of blocks. Use this empty column as a temporary workspace to shift blocking pieces out of the way.
• Isolate Dominant Colors: Identify which color appears most frequently at the top of tubes. Consolidate these blocks into one dedicated tube first to free up mixed spaces elsewhere.
• Unload Trapped Stacks: When a target color is buried at the bottom of a stack, move the top obstructing blocks into your empty buffer space single-file. Retrieve the bottom piece, then clear your buffer space immediately.

Step-by-Step Level Completion

Follow this sequence of operations to solve Levels 173 and 174 without running out of valid moves:

1. Assess the Top Layer: Identify which color appears most often across the visible top slots of all columns.
2. Clear an Initial Tube: Move top blocks onto existing matching stacks to clear one full tube, creating your primary buffer slot.
3. Consolidate High-Frequency Colors: Fill dedicated tubes with one specific color until those columns are fully organized.
4. Cycle Trapped Blocks: Shift obstruction blocks into your buffer space to unearth deep-layer colors at the bottom of tall columns.
5. Resolve Remaining Columns: Move the remaining isolated colors into matching single-color tubes to finish the stage.

Never fill all remaining slots in your buffer tube with mixed colors. Maintaining open operational space allows you to react to unexpected color block order and clear the board efficiently.