Block Out Level 1015 Strategy and Solution Guide

To clear Level 1015 in Block Out, focus on completely emptying a single column at the start to establish a working buffer. Moving pieces without an open buffer quickly clogs available slots and creates an unrecoverable deadlock. Once an empty space is open, consolidate matching colors into dedicated columns one shade at a time rather than spreading partial sets across the board.

Opening the First Buffer Column

Level 1015 buries key base blocks under alternating colors, leaving very few open slots. Digging directly for isolated bottom pieces will lock your remaining lanes. Instead, target the column that can be fully cleared in the fewest moves.

Locate shallow stacks: Find a column holding only one or two foreign pieces over a matching color, or one whose top pieces can immediately transfer onto matching tiles in other columns.
Consolidate top pieces: Transfer matching top segments directly onto existing partial stacks of the same color to expose the blocks beneath.
Clear the target completely: Once you begin emptying a column, remove every block until its base is empty. Do not store unrelated pieces inside it while clearing.
Keep the buffer functional: Use the cleared column strictly as a transfer lane or fill it exclusively with one uniform color. Storing multiple mixed colors in your open buffer eliminates your sorting flexibility.

Move Priority by Stage

Solving Level 1015 requires a controlled progression from opening space to finishing individual stacks.

Stage	Primary Objective	Move Priority
Early Stage	Establish open buffer space	Merge matching top blocks; clear the shortest mixed column completely.
Mid Stage	Complete single-color columns	Build one full uniform stack from base to top; never split a finished column.
Late Stage	Unravel bottom layers	Route remaining isolated blocks through the buffer to assemble final sets.

During the mid stage, prioritize colors that uncover matching blocks trapped underneath other columns. Completing a full column removes that color from play, reducing the number of active variables on the board.

Preventing Deadlocks and Tube Overflow

Running out of valid moves typically happens midway through the puzzle when open slots fill with mismatched blocks. Use these practices to maintain board flexibility:

Evaluate reveal value: Before placing a block into an open holding slot, verify that the move exposes a piece that can immediately transfer onto another matching stack. Shifting a block without uncovering a usable piece wastes limited capacity.
Group identical colors: Avoid spreading four pieces of a single color across three different columns. Keep matching blocks concentrated in the deepest existing stack of that shade to keep other columns open.
Check displaced pieces: Do not move multiple blocks to retrieve one lower piece if those displaced blocks end up burying another color you need for your next move.