Yarn Loop Level 840 Walkthrough

How to Solve Yarn Loop Level 840 — Full Solution

1. Select C1 navy 20, C1 blue 40, and C1 dark gray 20. Blue and dark gray clear first; navy 20 returns. C1 exposes cyan 10 above another dark gray 30.
2. Take C2 yellow 50, C3 dark gray 30, and C3 blue 40. Replay dark gray 17 and blue 23. Yellow initially keeps all 50 because the face is still covered.
3. Take C3 silver 30, C3 navy 20, and C1 cyan 10. Silver falls through 11, navy works on the upper bar, and cyan removes the exposed border.
4. Take C2 red 20, C2 white 20, and C2 black 50. Replay red 16/12, white 19/18/15, yellow 50/44, and black until its small remainder clears.
5. Take C2 blue 40. Recycle blue 36/29/9/5 with yellow 38/32/26, red 9/6/3, and white 13/11/9. Finish the earlier red and blue as their material opens.
6. Take C3 red 20. Replay it through 13 and 5 while the older yellow reaches 20 and white reaches 5.
7. Take C4 dark red 10, C4 olive 20, and C4 cyan 20. Dark red becomes a long-lived 9 and olive initially stays 20. Keep the older yellow and white returns available.
8. Take C4 silver 20. Reuse silver 14/4, cyan 15/14/9, yellow 10/7/4/1, and white 2/1. Finish the early yellow while preserving dark red 9 and olive 20.
9. Take C4 purple 20 and the C4 silver 20 underneath. Purple removes part of the top bar and clears. This new silver returns with 19/18/12/11, distinct from the earlier silver supply.
10. Select the linked C3 white 10/C4 black 40 pair. Black falls through 36 and 8 to zero while white stays at 10. Keep the attached white 10/black 0 pair.
11. Replay olive 20/13/10/4/2/1, dark red 9, silver 11, and the older standalone white 1. Select the linked C1 dark gray 30/C2 pink 20/C3 navy 20 triple; it returns with 14/9/9. The standalone white finishes in this phase.
12. Leave the 14/9/9 triple in storage while replaying the white/black pair. White falls through 9, 8, 7, 5, 3, 2, and 1 while black remains zero. Alternate with olive 1, silver 11, and dark red 9 until the pair clears.
13. Take C2 black 50 and replay it at 27 and 24. Resend the stored gray/pink/navy triple; it falls to 4/2/3 as the lower outfit opens.
14. Replay the triple again. It passes through gray 1/pink 0/navy 1 and clears. Keep dark red 9, olive 1, and silver 11 circulating as positions become available.
15. Select the linked C2 blue 40/C3 red 50/C4 purple 20 triple. It returns with 13/35/4. Then take the newly exposed C2 yellow 50.
16. Replay the triple through blue 5/red 26/purple 3 and then blue 0/red 24/purple 0. Continue yellow 33/25/8/7 until it clears; the blue and purple zero partners remain attached to red.
17. Take C4 cyan 20. Replay the triple's red 24/17/14/7 while cyan falls through 19/16/6/1. Finish the triple and continue the older dark red and silver remainders.
18. Take C3 cyan 10 and the linked C3 red 50/C4 yellow 50 pair, then C4 blue 40. Replay the pair at yellow 26/red 39 with cyan 8/7/6, blue 35/33/22, and silver 6/5/3.
19. Replay the pair through yellow 10/red 36, yellow 3/red 28, and yellow 0/red 20. Keep dark red 3/1, blue 18/11/5/2, and cyan 5/3/2/1 active. Silver and cyan finish during this cleanup.
20. Take C1 olive 20, then C1 black 50. Reuse olive 19/3 until it clears while black removes the exposed outfit. The yellow/red pair falls to 0/7 and then 0/5.
21. Take C1 pink 20. Replay pink 16/12/9/6/4/2 with blue 2 and dark red 1. Park the separate yellow 0/red 4 pair after its next pass.
22. Take the linked C1 olive 20/C2 purple 20 pair. It removes the last purple bar through olive 19/purple 10 and olive 3/purple 5, then leaves olive 1/purple 0. The preceding pink finishes during these passes.
23. Keep olive 1/purple 0 circulating with blue 2 and dark red 1. Take C1 yellow 50 and let it drop through 46 and 17 and clear. Continue the olive/purple pair until olive reaches zero and both members disappear.
24. Replay the stored yellow 0/red 4 pair, then take C1 black 40. Black falls through 20, 13, and 7 and clears. Preserve blue 2 and the separate dark red 1 while the yellow/red pair returns to storage.
25. Select the linked four-yellow group across C1–C4: 40, 40, 50, and 40. Reserve four track positions for it and use the fifth for dark red 1. The yellow group returns with 0/0/1/2.
26. Replay the older yellow 0/red 4 pair beside blue 2. Its red falls through 3 and 1 and clears with its yellow partner. Resend the four-yellow group so its remaining 1 and 2 clear and all four positions are released.
27. Take the final C3 yellow 40, C2 black 40, C2 red 10, and C3 white 10 in that order. Keep blue 2 active while black opens the last lower blocks and white removes the cuffs.
28. Finish blue 2/1 and white 3/2/1, then black 13/5/2 and red 9/6/3/1. Yellow falls through 20, 9, 5, 2, and 1. Red clears first; the final yellow pixel disappears as yellow reaches zero and the track shows 5/5 before completion.