Step 1: Fill the main body of the owl's face
Click the central purple sand ball, first fill a large number of empty buckets on the conveyor belt, then fill the face and outline.
The purple area above the pattern is filled to over 50%.
Complete walkthrough and strategy guide for Sand Loop Level 40. Watch the video tutorial and learn expert tips to beat this level.

Watch this video walkthrough to learn how to beat Sand Loop Level 40. Follow the step-by-step solution.
Master Sand Loop Level 40 with our complete walkthrough. This beginner level typically takes 1–2 min to complete. Find tips, video guides, and strategies for this puzzle level.
The level goal is to complete the purple owl pattern; the difficulty lies in unlocking paths in symmetrical areas and precisely filling the eye colors. The key is to expand slots early.
| Time | Scene | Action | Common Error | Confidence |
|---|---|---|---|---|
| 00:01 | Level start, showing the target owl pattern with a locked path on both the left and right. | Observe sand source balance, start filling with the main pink/purple sand. | Not noticing the key mechanisms on both sides, leading to sand blockage. | 95% |
| 00:18 | The 'Add 1 More Slot' expansion interface pops up. | Confirm purchase, increasing conveyor belt slots to 6. | Refusing expansion leads to buckets not keeping up with the high-frequency switching of three colors later on. | 100% |
| 02:10 | Entering the final detail filling, the owl's eyes and pointed parts. | Precisely tap the yellow sand source to complete the eye filling. | Yellow sand balance is low; wasting it in non-eye areas will prevent a perfect clear. | 90% |
Click the central purple sand ball, first fill a large number of empty buckets on the conveyor belt, then fill the face and outline.
The purple area above the pattern is filled to over 50%.
Trigger expansion at approximately 15% progress, gaining the 6th conveyor bucket slot.
Conveyor belt capacity increased.
Alternately click pink and yellow sand balls to fill the eyes and chest feather areas.
Owl's eyes light up, pattern edges are closed.
Key not triggered, leading to blocked path
Fix: Ensure a certain amount of sand flows through the hole where the key icon is located; unlock first before filling large areas of color.
Evidence Time: 00:24
Eye color overflow
Fix: Yellow sand is very scarce; you must tap precisely when the bucket is directly above the eye.
Evidence Time: 02:18
In some versions, key positions might be swapped left and right.
Adaptation: Prioritize observing the keyhole path, first clear obstacles on the falling path.
Q: Is it necessary to buy extra slots for this level?
A: For levels like Level 40, which involve three alternating colors, it's possible to clear without buying, but 6 slots significantly improve fault tolerance and clear speed.
Q: Why didn't some sand fall into the pattern?
A: Conveyor belt speed is constant; clicking too early or too late will cause sand to fall outside the outline, leading to waste.

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