Block Out Levels 872-877: Six New Expert Boards and Video Solutions

Six more boards are live: Level 872 through Level 877, all rated Expert and all with a published video walkthrough. That takes the level library from 871 to 877 and continues the run started in the 866-871 level log.

These arrived as one batch, so the same approach applies across all six. The boards are dense, the open lanes are few, and the opening two or three moves decide how much room the rest of the puzzle has to work with. Read the doors before you slide anything.

Levels 872-877 at a glance

The six newest boards

All six carry the Expert rating. Treat them as one stretch: the reading habit that clears one of them clears the next.

Level 872

Open the Level 872 walkthrough or watch the video solution on YouTube.

Count the usable exits for each color before touching anything. The color with a single approach has to move first, even when a larger group looks like the obvious opening. Clearing the big group early is what closes the narrow color's lane.

Level 873

Open the Level 873 walkthrough or watch the video solution on YouTube.

The outer ring is the release valve here. Clear one outer group to open space, then work back toward the center. Going straight for the middle route walls off the blocks that still need it later.

Level 874

Open the Level 874 walkthrough or watch the video solution on YouTube.

Look for the block that also serves as a door for a different color. It reads as clutter, but taking it early shuts a lane another color still depends on. Clear that lane first, then reclaim the space.

Level 875

Open the Level 875 walkthrough or watch the video solution on YouTube.

Timing beats ordering on the moving pieces. Confirm the landing lane is empty before sending a block into a lift or conveyor. A blocked landing wastes the whole cycle, and the board rarely gives you a second one.

Level 876

Open the Level 876 walkthrough or watch the video solution on YouTube.

There is very little slack on this board. Take the constrained colors while their routes still exist and leave the short central path for the end. When a queue starts to form, stop and recheck which doors remain open rather than pushing through.

Level 877

Open the Level 877 walkthrough or watch the video solution on YouTube.

The last board of the batch and the tightest of the six. Map every color's routes before the opening move, then start with the single-exit color. If the position locks up, a clean restart beats trying to rescue a board where nothing has a route left.

What the late 870s ask for

The same four habits carry these boards:

• Read every door before moving. The door layout is the map; the blocks are traffic.
• Protect the center. The shortest route is also the first one to jam.
• Clear constrained colors early. A color with one approach cannot wait while you clear something easier.
• Wait for moving obstacles. Generators and lifts reward timing more than speed.

Using the walkthroughs

The video is the verified solve; the notes above describe how to read the board rather than a move-by-move script. A routine that works well here:

1. Watch the opening of the video up to the first color that leaves the board.
2. Restart and reproduce that opening yourself.
3. Finish the board without the video.
4. If it jams, rewatch only the section where your route diverged.

Every level in this range has a page with the board preview, difficulty rating and embedded walkthrough. Browse all Block Out levels for the full library, or go back to the 866-871 log for the previous stretch.