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Sand Blocks Level 645 Walkthrough

Expert

Level 645 video solution · published November 2026

Watch on YouTube →

Sand Blocks Level 645 usually blocks players on the first few pulls, not at the end. It is an Expert board that lands 99% into the 650-level run. Follow the run above for the order, and use the steps below to check your own board against it.

Level board

Sand Blocks Level 645 board layout

How to clear Sand Blocks Level 645

Sand Blocks Level 645 — the video above is the full clear, and the steps below turn it into the pull-order habits that make it repeatable. Watch first, pull second.

  1. 1

    Scout the whole clear first

    Expert boards punish early guesses. Watch the entire run above before the first pull, and note where the player pauses — those pauses are the decisions the board forces.

  2. 2

    Hold the whole order in mind

    Expert boards cannot be recovered by feel. Build the full order from the run above before the first pull, and follow it even when another move looks tempting.

  3. 3

    Count colors at the halfway point

    Halfway through, list the colors you have not finished. Losing track of one is the most common way these clears fail.

  4. 4

    Slow down where the run slows

    If the recorded player hesitates, your board will need the same care in that spot. Match the caution, not the speed.

  5. 5

    Bank the easy pits

    Take the pits that accept sand quickly and cheaply early on. Every filled pit is space you no longer have to defend.

  6. 6

    Use the scrubber

    Replay only the section of the run above that matches where you are stuck, instead of watching the whole clip again.

  7. 7

    Then clear Level 645 unaided

    Close the video and clear Level 645 again from memory. If it holds, the order is yours; if it breaks, rewatch only the section where you slipped.

Where Level 645 sits in Sand Blocks

Level 645 is the 396th of 401 Expert boards in Sand Blocks: Drop Puzzle, and about 99% of the way through the 650 levels this guide currently covers.

Expert boards run from Level 250 to Level 650, and this page covers the 396th of them, in the later half of the tier.

It sits between Level 644 and Level 646, inside the 641-680 block of the level index.

The video walkthrough is being added; the written order on this page is the reference until it lands.

All boards in the 641–680 block →

Pro tips for Sand Blocks Level 645

Two clears, not one

One guided clear is not mastery. Run it again with the video closed before you call the level done.

One trapped color ends it

Identify every flow that could wall off another color and clear those before you take anything comfortable.

Level 645 checkpoint

Level 645 is an Expert board and the 396th of 401 in that tier. If your attempt keeps breaking, pause the run at the opening and compare that frame with your board — the difference tells you which pull you mis-ordered.

If Level 645 still will not fall

Opening

Copy the first two pulls from the video before doing anything else. If they land as shown, the rest of the order becomes obvious.

Middle

Compare the middle of the clear with your own board. On Expert boards this is where the routes start to close.

Finish

If more than one color is still open at the end, the order drifted — restart and replay from the middle.

More expert walkthroughs

View all →

Sand Blocks Level 645 FAQ

How do I beat Sand Blocks Level 645?

The fastest route for Level 645 is to watch the video walkthrough above from start to finish, then play it back against your own board. As a rule for Expert boards, build the whole order from the video before the first pull, blockers first. Levels 644 and 646 are the boards either side of it if you want the run-up.

What difficulty is Level 645 in Sand Blocks?

Level 645 is rated Expert difficulty in Sand Blocks: Drop Puzzle — the 396th of 401 boards in that tier, and level 645 of 650 overall.

Is there a video walkthrough for Sand Blocks Level 645?

Yes — this page includes a full video walkthrough you can follow pull by pull. You can also watch it directly on YouTube.