Level 2
3 Rings · 4 Board
Rotate Rings
Rotate Rings Level 4 walkthrough
The game has different level schedules, so the board for the same level number may differ. Choose the thumbnail that matches your game.
Ring numbers
7 rings, 8 blocking pins
1234567
Default A · Numbers identify the rings on the diagram; they do not specify an operation order.
Choose a matching board
Filters examine every variant; choose a thumbnail to compare a matching board.
Board · A / B / C / D / F / G
7 rings, 8 blocking pins
Ring numbers
1234567
Numbers identify the rings on the diagram; they do not specify an operation order.
Diagram legend
Numbers identify individual rings; S labels bars, C labels clamps, and B marks a bomb. Match the colored rings, pins, slide bars and clamps to your board.
Rings: 7 · Blocking pins: 8 · Stop pins: 0 · Slide bars: 0 · Clamps: 0 · Bombs: 0
Step-by-step walkthrough
Candidate walkthrough; gameplay confirmation is pending. Release after each move and wait for the expected departures. Stop and report the first mismatch.
Rotate Ring 2 counterclockwise about 135°. Target opening direction: 285° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 0 bars.
Rotate Ring 6 clockwise about 135°. Target opening direction: 255° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 0 bars.
Rotate Ring 3 clockwise about 90°. Target opening direction: 180° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 0 bars.
Rotate Ring 1 clockwise about 150°. Target opening direction: 60° (right 0°, up 90°). Release and wait. Expected departure: Ring 1. Expected remainder: 6 rings, 0 bars.
Rotate Ring 3 clockwise about 118°. Target opening direction: 62° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 5 rings, 0 bars.
Rotate Ring 7 counterclockwise about 153°. Target opening direction: 121° (right 0°, up 90°). Release and wait. Expected departure: Ring 4, Ring 7. Expected remainder: 3 rings, 0 bars.
Rotate Ring 2 counterclockwise about 90°. Target opening direction: 15° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 2 rings, 0 bars.
Rotate Ring 6 clockwise about 90°. Target opening direction: 165° (right 0°, up 90°). Release and wait. Expected departure: Ring 6, Ring 5. Expected remainder: 0 rings, 0 bars.
Read this board before making a move
- Ring
- An open ring can rotate. Align its opening with the connecting pin to release that connection. Rings fly away automatically once their connections and constraints are released.
- Blocking pin
- A fixed pin sitting on a ring's edge. It holds another ring in place, so its gap has to face this pin.Read the mechanism guide →
- Closed ring
- A closed ring has no opening. Release its blocking connections using the surrounding objects; the ring flies away automatically when it is free.Read the mechanism guide →
Ring positions and connections
Positions refer to the diagram. Connections describe what to inspect, not an additional removal order.
| Ring | Position | Type |
|---|---|---|
| 1 | Lower left | Open |
| 2 | Middle left | Open |
| 3 | Lower center | Open |
| 4 | Center | Closed |
| 5 | Upper center | Open |
| 6 | Middle right | Open |
| 7 | Lower right | Open |
- Ring 4 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 1. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 7 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
Board · E
7 rings, 6 blocking pins
Ring numbers
1234567
Numbers identify the rings on the diagram; they do not specify an operation order.
Diagram legend
Numbers identify individual rings; S labels bars, C labels clamps, and B marks a bomb. Match the colored rings, pins, slide bars and clamps to your board.
Rings: 7 · Blocking pins: 6 · Stop pins: 0 · Slide bars: 0 · Clamps: 0 · Bombs: 0
Step-by-step walkthrough
Candidate walkthrough; gameplay confirmation is pending. Release after each move and wait for the expected departures. Stop and report the first mismatch.
Rotate Ring 4 clockwise about 75°. Target opening direction: 350° (right 0°, up 90°). Release and wait. Expected departure: Ring 4. Expected remainder: 6 rings, 0 bars.
Rotate Ring 6 clockwise about 140°. Target opening direction: 245° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 5 rings, 0 bars.
Rotate Ring 3 clockwise about 150°. Target opening direction: 85° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 4 rings, 0 bars.
Rotate Ring 5 counterclockwise about 40°. Target opening direction: 5° (right 0°, up 90°). Release and wait. Expected departure: Ring 7. Expected remainder: 3 rings, 0 bars.
Rotate Ring 5 counterclockwise about 90°. Target opening direction: 95° (right 0°, up 90°). Release and wait. Expected departure: Ring 5. Expected remainder: 2 rings, 0 bars.
Rotate Ring 2 counterclockwise about 75°. Target opening direction: 200° (right 0°, up 90°). Release and wait. Expected departure: Ring 2, Ring 1. Expected remainder: 0 rings, 0 bars.
Read this board before making a move
- Ring
- An open ring can rotate. Align its opening with the connecting pin to release that connection. Rings fly away automatically once their connections and constraints are released.
- Blocking pin
- A fixed pin sitting on a ring's edge. It holds another ring in place, so its gap has to face this pin.Read the mechanism guide →
Ring positions and connections
Positions refer to the diagram. Connections describe what to inspect, not an additional removal order.
| Ring | Position | Type |
|---|---|---|
| 1 | Middle left | Open |
| 2 | Center | Open |
| 3 | Lower center | Open |
| 4 | Upper center | Open |
| 5 | Center | Open |
| 6 | Upper center | Open |
| 7 | Middle right | Open |
- Ring 6 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 7 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
Board · H
7 rings, 8 blocking pins
Ring numbers
1234567
Numbers identify the rings on the diagram; they do not specify an operation order.
Diagram legend
Numbers identify individual rings; S labels bars, C labels clamps, and B marks a bomb. Match the colored rings, pins, slide bars and clamps to your board.
Rings: 7 · Blocking pins: 8 · Stop pins: 0 · Slide bars: 0 · Clamps: 0 · Bombs: 0
Step-by-step walkthrough
Candidate walkthrough; gameplay confirmation is pending. Release after each move and wait for the expected departures. Stop and report the first mismatch.
Rotate Ring 2 counterclockwise about 150°. Target opening direction: 300° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 0 bars.
Rotate Ring 6 clockwise about 150°. Target opening direction: 240° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 0 bars.
Rotate Ring 3 clockwise about 105°. Target opening direction: 165° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 0 bars.
Rotate Ring 1 clockwise about 165°. Target opening direction: 45° (right 0°, up 90°). Release and wait. Expected departure: Ring 1. Expected remainder: 6 rings, 0 bars.
Rotate Ring 3 clockwise about 118°. Target opening direction: 47° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 5 rings, 0 bars.
Rotate Ring 7 counterclockwise about 168°. Target opening direction: 136° (right 0°, up 90°). Release and wait. Expected departure: Ring 4, Ring 7. Expected remainder: 3 rings, 0 bars.
Rotate Ring 2 counterclockwise about 90°. Target opening direction: 30° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 2 rings, 0 bars.
Rotate Ring 6 clockwise about 90°. Target opening direction: 150° (right 0°, up 90°). Release and wait. Expected departure: Ring 6, Ring 5. Expected remainder: 0 rings, 0 bars.
Read this board before making a move
- Ring
- An open ring can rotate. Align its opening with the connecting pin to release that connection. Rings fly away automatically once their connections and constraints are released.
- Blocking pin
- A fixed pin sitting on a ring's edge. It holds another ring in place, so its gap has to face this pin.Read the mechanism guide →
- Closed ring
- A closed ring has no opening. Release its blocking connections using the surrounding objects; the ring flies away automatically when it is free.Read the mechanism guide →
Ring positions and connections
Positions refer to the diagram. Connections describe what to inspect, not an additional removal order.
| Ring | Position | Type |
|---|---|---|
| 1 | Lower left | Open |
| 2 | Middle left | Open |
| 3 | Lower center | Open |
| 4 | Center | Closed |
| 5 | Upper center | Open |
| 6 | Middle right | Open |
| 7 | Lower right | Open |
- Ring 4 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 1. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 7 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
Board · I
21 rings, 20 blocking pins
Ring numbers
123456789101112131415161718192021
Numbers identify the rings on the diagram; they do not specify an operation order.
Diagram legend
Numbers identify individual rings; S labels bars, C labels clamps, and B marks a bomb. Match the colored rings, pins, slide bars and clamps to your board.
Rings: 21 · Blocking pins: 20 · Stop pins: 0 · Slide bars: 0 · Clamps: 0 · Bombs: 0
Step-by-step walkthrough
Candidate walkthrough; gameplay confirmation is pending. Release after each move and wait for the expected departures. Stop and report the first mismatch.
Rotate Ring 16 clockwise about 150°. Target opening direction: 105° (right 0°, up 90°). Release and wait. Expected departure: Ring 16. Expected remainder: 20 rings, 0 bars.
Rotate Ring 7 clockwise about 142°. Target opening direction: 208° (right 0°, up 90°). Release and wait. Expected departure: Ring 4, Ring 7. Expected remainder: 18 rings, 0 bars.
Rotate Ring 17 clockwise about 157°. Target opening direction: 218° (right 0°, up 90°). Release and wait. Expected departure: Ring 17. Expected remainder: 17 rings, 0 bars.
Rotate Ring 6 clockwise about 168°. Target opening direction: 317° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 16 rings, 0 bars.
Rotate Ring 12 clockwise about 155°. Target opening direction: 85° (right 0°, up 90°). Release and wait. Expected departure: Ring 12. Expected remainder: 15 rings, 0 bars.
Rotate Ring 5 clockwise about 129°. Target opening direction: 86° (right 0°, up 90°). Release and wait. Expected departure: Ring 9. Expected remainder: 14 rings, 0 bars.
Rotate Ring 11 counterclockwise about 68°. Target opening direction: 253° (right 0°, up 90°). Release and wait. Expected departure: Ring 15. Expected remainder: 13 rings, 0 bars.
Rotate Ring 11 clockwise about 142°. Target opening direction: 111° (right 0°, up 90°). Release and wait. Expected departure: Ring 11. Expected remainder: 12 rings, 0 bars.
Rotate Ring 5 clockwise about 114°. Target opening direction: 332° (right 0°, up 90°). Release and wait. Expected departure: Ring 5. Expected remainder: 11 rings, 0 bars.
Rotate Ring 13 counterclockwise about 79°. Target opening direction: 179° (right 0°, up 90°). Release and wait. Expected departure: Ring 13. Expected remainder: 10 rings, 0 bars.
Rotate Ring 8 clockwise about 82°. Target opening direction: 209° (right 0°, up 90°). Release and wait. Expected departure: Ring 8. Expected remainder: 9 rings, 0 bars.
Rotate Ring 18 counterclockwise about 40°. Target opening direction: 0° (right 0°, up 90°). Release and wait. Expected departure: Ring 18. Expected remainder: 8 rings, 0 bars.
Rotate Ring 10 clockwise about 99°. Target opening direction: 306° (right 0°, up 90°). Release and wait. Expected departure: Ring 10. Expected remainder: 7 rings, 0 bars.
Rotate Ring 21 clockwise about 47°. Target opening direction: 238° (right 0°, up 90°). Release and wait. Expected departure: Ring 14. Expected remainder: 6 rings, 0 bars.
Rotate Ring 3 clockwise about 103°. Target opening direction: 290° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 5 rings, 0 bars.
Rotate Ring 3 clockwise about 170°. Target opening direction: 120° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 4 rings, 0 bars.
Rotate Ring 21 clockwise about 61°. Target opening direction: 177° (right 0°, up 90°). Release and wait. Expected departure: Ring 1. Expected remainder: 3 rings, 0 bars.
Rotate Ring 21 clockwise about 66°. Target opening direction: 111° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 3 rings, 0 bars.
Rotate Ring 20 clockwise about 180°. Target opening direction: 350° (right 0°, up 90°). Release and wait. Expected departure: Ring 20. Expected remainder: 2 rings, 0 bars.
Rotate Ring 21 clockwise about 61°. Target opening direction: 50° (right 0°, up 90°). Release and wait. Expected departure: Ring 21, Ring 19. Expected remainder: 0 rings, 0 bars.
Read this board before making a move
- Ring
- An open ring can rotate. Align its opening with the connecting pin to release that connection. Rings fly away automatically once their connections and constraints are released.
- Blocking pin
- A fixed pin sitting on a ring's edge. It holds another ring in place, so its gap has to face this pin.Read the mechanism guide →
- Closed ring
- A closed ring has no opening. Release its blocking connections using the surrounding objects; the ring flies away automatically when it is free.Read the mechanism guide →
Ring positions and connections
Positions refer to the diagram. Connections describe what to inspect, not an additional removal order.
| Ring | Position | Type |
|---|---|---|
| 1 | Middle left | Open |
| 2 | Lower left | Open |
| 3 | Middle left | Open |
| 4 | Upper left | Closed |
| 5 | Lower center | Open |
| 6 | Center | Open |
| 7 | Upper center | Open |
| 8 | Lower center | Open |
| 9 | Center | Closed |
| 10 | Upper right | Open |
| 11 | Middle right | Open |
| 12 | Upper right | Open |
| 13 | Lower right | Open |
| 14 | Middle left | Closed |
| 15 | Lower right | Open |
| 16 | Middle left | Open |
| 17 | Middle right | Open |
| 18 | Lower left | Open |
| 19 | Upper right | Closed |
| 20 | Upper center | Open |
| 21 | Center | Open |
- Ring 1 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 17. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 20 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 20. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 12. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 11. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 10. Check this pair on the diagram.
- Ring 14 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 15 is connected to a blocking relationship with ring 11. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 13. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 18 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
Board · J
21 rings, 20 blocking pins
Ring numbers
123456789101112131415161718192021
Numbers identify the rings on the diagram; they do not specify an operation order.
Diagram legend
Numbers identify individual rings; S labels bars, C labels clamps, and B marks a bomb. Match the colored rings, pins, slide bars and clamps to your board.
Rings: 21 · Blocking pins: 20 · Stop pins: 0 · Slide bars: 0 · Clamps: 0 · Bombs: 0
Step-by-step walkthrough
Candidate walkthrough; gameplay confirmation is pending. Release after each move and wait for the expected departures. Stop and report the first mismatch.
Rotate Ring 1 clockwise about 165°. Target opening direction: 90° (right 0°, up 90°). Release and wait. Expected departure: Ring 1. Expected remainder: 20 rings, 0 bars.
Rotate Ring 7 clockwise about 157°. Target opening direction: 193° (right 0°, up 90°). Release and wait. Expected departure: Ring 4, Ring 7. Expected remainder: 18 rings, 0 bars.
Rotate Ring 11 clockwise about 172°. Target opening direction: 203° (right 0°, up 90°). Release and wait. Expected departure: Ring 11. Expected remainder: 17 rings, 0 bars.
Rotate Ring 6 counterclockwise about 146°. Target opening direction: 271° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 16 rings, 0 bars.
Rotate Ring 17 clockwise about 170°. Target opening direction: 70° (right 0°, up 90°). Release and wait. Expected departure: Ring 17. Expected remainder: 15 rings, 0 bars.
Rotate Ring 2 counterclockwise about 40°. Target opening direction: 0° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 14 rings, 0 bars.
Rotate Ring 10 clockwise about 114°. Target opening direction: 291° (right 0°, up 90°). Release and wait. Expected departure: Ring 10. Expected remainder: 13 rings, 0 bars.
Rotate Ring 5 clockwise about 144°. Target opening direction: 71° (right 0°, up 90°). Release and wait. Expected departure: Ring 9. Expected remainder: 12 rings, 0 bars.
Rotate Ring 15 counterclockwise about 68°. Target opening direction: 253° (right 0°, up 90°). Release and wait. Expected departure: Ring 13. Expected remainder: 11 rings, 0 bars.
Rotate Ring 15 clockwise about 142°. Target opening direction: 111° (right 0°, up 90°). Release and wait. Expected departure: Ring 15. Expected remainder: 10 rings, 0 bars.
Rotate Ring 5 clockwise about 114°. Target opening direction: 317° (right 0°, up 90°). Release and wait. Expected departure: Ring 5. Expected remainder: 9 rings, 0 bars.
Rotate Ring 14 counterclockwise about 79°. Target opening direction: 179° (right 0°, up 90°). Release and wait. Expected departure: Ring 14. Expected remainder: 8 rings, 0 bars.
Rotate Ring 8 clockwise about 97°. Target opening direction: 194° (right 0°, up 90°). Release and wait. Expected departure: Ring 8. Expected remainder: 7 rings, 0 bars.
Rotate Ring 21 clockwise about 47°. Target opening direction: 238° (right 0°, up 90°). Release and wait. Expected departure: Ring 20. Expected remainder: 6 rings, 0 bars.
Rotate Ring 3 clockwise about 103°. Target opening direction: 290° (right 0°, up 90°). Release and wait. Expected departure: Ring 19. Expected remainder: 5 rings, 0 bars.
Rotate Ring 3 clockwise about 170°. Target opening direction: 120° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 4 rings, 0 bars.
Rotate Ring 21 clockwise about 61°. Target opening direction: 177° (right 0°, up 90°). Release and wait. Expected departure: Ring 18. Expected remainder: 3 rings, 0 bars.
Rotate Ring 21 clockwise about 66°. Target opening direction: 111° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 3 rings, 0 bars.
Rotate Ring 16 clockwise about 180°. Target opening direction: 350° (right 0°, up 90°). Release and wait. Expected departure: Ring 16. Expected remainder: 2 rings, 0 bars.
Rotate Ring 21 clockwise about 61°. Target opening direction: 50° (right 0°, up 90°). Release and wait. Expected departure: Ring 21, Ring 12. Expected remainder: 0 rings, 0 bars.
Read this board before making a move
- Ring
- An open ring can rotate. Align its opening with the connecting pin to release that connection. Rings fly away automatically once their connections and constraints are released.
- Blocking pin
- A fixed pin sitting on a ring's edge. It holds another ring in place, so its gap has to face this pin.Read the mechanism guide →
- Closed ring
- A closed ring has no opening. Release its blocking connections using the surrounding objects; the ring flies away automatically when it is free.Read the mechanism guide →
Ring positions and connections
Positions refer to the diagram. Connections describe what to inspect, not an additional removal order.
| Ring | Position | Type |
|---|---|---|
| 1 | Middle left | Open |
| 2 | Lower left | Open |
| 3 | Middle left | Open |
| 4 | Upper left | Closed |
| 5 | Lower center | Open |
| 6 | Center | Open |
| 7 | Upper center | Open |
| 8 | Lower center | Open |
| 9 | Center | Closed |
| 10 | Upper right | Open |
| 11 | Middle right | Open |
| 12 | Upper right | Closed |
| 13 | Lower right | Open |
| 14 | Lower right | Open |
| 15 | Middle right | Open |
| 16 | Upper center | Open |
| 17 | Upper right | Open |
| 18 | Middle left | Open |
| 19 | Lower left | Open |
| 20 | Middle left | Closed |
| 21 | Center | Open |
- Ring 18 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 18 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 1. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 11. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 16 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 17. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 10. Check this pair on the diagram.
- Ring 20 is connected to a blocking relationship with ring 21. Check this pair on the diagram.
- Ring 13 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 14. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 19. Check this pair on the diagram.
Frequently asked questions
Which board should I use for level 4?
This page has 5 distinct boards. The default A board has 7 rings and 8 blocking pins. Compare these features and the thumbnails before following its steps.
What do the numbers on the diagram mean?
They identify individual rings, not the operation order. A written step can also describe a bar or latch, so the step number is not always the ring number. Match the ring number named in the instruction with the diagram.
What should I check when I am stuck on level 4?
Check whether the ring is open or closed, whether a stop pin limits rotation and whether a latch is still locked by a bar. Repeated rotation does not remove a fixed obstruction. Compare the neighboring connections, then return to the step for the matching ring number.
