Block Out Level 915 Solution: How to Beat the Stage

To beat Level 915 in Block Out, clear a single tube as quickly as possible to establish a dedicated buffer lane, consolidate matching surface colors, and build full four-block sets without burying remaining segments.

How to Create an Early Buffer Tube

Level 915 features split stacks of three or four colors across nearly every tube, limiting immediate top-level matches. Your initial focus must be fully emptying one tube to serve as a transit lane rather than trying to finish a full set immediately.

1. Find surface pairs: Scan the top layer for tubes that share the same color. Combine them to open capacity in the source tube.
2. Peel the shallowest column: Choose the tube with the fewest distinct color layers and transfer its top blocks onto existing matches elsewhere.
3. Protect the open slot: Once a tube is empty, use it only for temporary transitions. Do not park mixed blocks in it unless that move directly uncovers a block required to complete a set.

Move Priorities for Level 915

Evaluate your board state before each transfer. Moves should follow a strict hierarchy to prevent running out of open slots:

When a color reaches three consolidated units, locate its fourth piece immediately. Freeing that final piece takes precedence over starting a new color stack because locking in a four-block tube permanently simplifies your routing.

Preventing Circular Deadlocks

Most failed attempts on Level 915 occur when a player stacks non-matching blocks over colors that still have pieces buried in other columns. For example, placing a blue block over a red block when the final blue block is trapped beneath a different red block creates an unbreakable loop.

• Check remaining pieces before covering: Never cover a color layer if you cannot account for all remaining segments of that color.
• Track split distribution: If a color is divided across the bottoms of two different tubes, keep access to at least one of those tubes completely open.
• Avoid widespread partial stacks: Three tubes with one empty slot each offer far less utility than one completely empty tube and two full columns. Consolidate matching segments whenever capacity allows.

Step-by-Step Clear Sequence

Once you eliminate two full colors, the remaining tubes provide ample room to maneuver. Use the following order to resolve the final stacks:

1. Identify the color that has all remaining segments visible across the open tubes.
2. Transfer those segments sequentially into an empty tube until the full four-block set locks.
3. Take the newly vacated tube left behind by that completed set and designate it for the next color.
4. Repeat this transfer loop one color at a time until all tubes are sorted.