Rotate Rings Level 15 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
9 rings, 9 blocking pins, 8 slide bars, 8 clamps
123456789
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 / F / G

9 rings, 9 blocking pins, 8 slide bars, 8 clamps
Ring numbers
123456789
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: 9 · Blocking pins: 9 · Stop pins: 1 · Slide bars: 8 · Clamps: 8 · Bombs: 0
Step-by-step walkthrough
The complete route is still being worked out. Only the opening moves below passed the current checks; they do not establish a full solution. This candidate assumes a clamp opens when its paired bar leaves; confirm this behavior in the game.
Rotate Ring 6 clockwise about 36°. Target opening direction: 54° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 9 rings, 8 bars.
Rotate Ring 8 clockwise about 3°. This closed ring turns together with its pins. Release and wait. No departure is expected yet. Expected remainder: 9 rings, 8 bars.
Rotate Ring 9 clockwise about 38°. Target opening direction: 52° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 9 rings, 8 bars.
Move S2 right along its track about 4.57 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S2. Expected remainder: 9 rings, 7 bars.
Rotate Ring 9 clockwise about 107°. Target opening direction: 305° (right 0°, up 90°). Release and wait. Expected departure: Ring 8, Ring 9. Expected remainder: 7 rings, 7 bars.
Move S7 up along its track about 6.57 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S7. Expected remainder: 7 rings, 6 bars.
Move S1 up along its track about 4.00 ring radii. Release and wait. No departure is expected yet. Expected remainder: 7 rings, 6 bars.
Rotate Ring 6 counterclockwise about 77°. Target opening direction: 131° (right 0°, up 90°). Release and wait. Expected departure: Ring 1. Expected remainder: 6 rings, 6 bars.
Move S1 up along its track about 3.71 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S1. Expected remainder: 6 rings, 5 bars.
Rotate Ring 6 clockwise about 140°. Target opening direction: 351° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 6 rings, 5 bars.
Rotate Ring 7 clockwise about 46°. Target opening direction: 254° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 6 rings, 5 bars.
Rotate Ring 6 clockwise about 101°. Target opening direction: 250° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 5 rings, 5 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 →
- Stop pin
- Limits how far a ring can turn, so only part of the ring is reachable.Read the mechanism guide →
- Latch
- Holds a ring in place. A stick locks it, so release the stick first and then turn the matching ring.Read the mechanism guide →
- Stick
- Slide bar. Move it sideways to release the latch it is tied to.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 | Closed |
| 2 | Upper left | Open |
| 3 | Upper left | Open |
| 4 | Lower center | Open |
| 5 | Lower center | Open |
| 6 | Center | Open |
| 7 | Lower center | Open |
| 8 | Center | Closed |
| 9 | Upper right | Open |
- Ring 1 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
- Ring 3 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 7 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 4. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
Board · B

7 rings, 6 blocking pins, 2 slide bars, 4 clamps
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: 2 · Clamps: 4 · Bombs: 0
Step-by-step walkthrough
The complete route is still being worked out. Only the opening moves below passed the current checks; they do not establish a full solution. This candidate assumes a clamp opens when its paired bar leaves; confirm this behavior in the game.
Rotate Ring 5 clockwise about 175°. Target opening direction: 295° (right 0°, up 90°). Release and wait. Expected departure: Ring 5. Expected remainder: 6 rings, 2 bars.
Rotate Ring 3 counterclockwise about 31°. Target opening direction: 216° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 6 rings, 2 bars.
Rotate Ring 2 counterclockwise about 12°. Target opening direction: 278° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 5 rings, 2 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 →
- Latch
- Holds a ring in place. A stick locks it, so release the stick first and then turn the matching ring.Read the mechanism guide →
- Stick
- Slide bar. Move it sideways to release the latch it is tied to.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 | Upper center | Open |
| 2 | Lower center | Open |
| 3 | Center | Open |
| 4 | Center | Open |
| 5 | Upper center | Open |
| 6 | Lower center | Open |
| 7 | Middle right | Open |
- Ring 4 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 4 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 5. Check this pair on the diagram.
- Ring 6 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
Board · C / E

10 rings, 10 blocking pins, 2 slide bars
Ring numbers
12345678910
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: 10 · Blocking pins: 10 · Stop pins: 0 · Slide bars: 2 · 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 9 counterclockwise about 56°. Target opening direction: 236° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 10 rings, 2 bars.
Move S2 right along its track about 2.57 ring radii. Release and wait. Expected departure: Ring 8. Expected remainder: 9 rings, 2 bars.
Rotate Ring 4 clockwise about 94°. Target opening direction: 251° (right 0°, up 90°). Release and wait. Expected departure: Ring 4. Expected remainder: 8 rings, 2 bars.
Rotate Ring 6 counterclockwise about 82°. Target opening direction: 127° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 7 rings, 2 bars.
Rotate Ring 7 clockwise about 58°. Target opening direction: 257° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 2 bars.
Rotate Ring 3 clockwise about 20°. Target opening direction: 160° (right 0°, up 90°). Release and wait. Expected departure: Ring 7. Expected remainder: 6 rings, 2 bars.
Rotate Ring 3 counterclockwise about 129°. Target opening direction: 289° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 5 rings, 2 bars.
Move S2 left along its track about 5.29 ring radii. Release and wait. No departure is expected yet. Expected remainder: 5 rings, 2 bars.
Rotate Ring 9 clockwise about 112°. Target opening direction: 124° (right 0°, up 90°). Release and wait. Expected departure: Ring 9. Expected remainder: 4 rings, 2 bars.
Move S1 right along its track about 2.57 ring radii. Release and wait. Expected departure: Ring 10. Expected remainder: 3 rings, 2 bars.
Move S1 right along its track about 6.86 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S1. Expected remainder: 3 rings, 1 bars.
Rotate Ring 5 clockwise about 124°. Target opening direction: 251° (right 0°, up 90°). Release and wait. Expected departure: Ring 5. Expected remainder: 2 rings, 1 bars.
Rotate Ring 2 counterclockwise about 60°. Target opening direction: 240° (right 0°, up 90°). Release and wait. Expected departure: Ring 2, Ring 1. Expected remainder: 0 rings, 1 bars.
Move S2 right along its track about 12.14 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S2. 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 →
- Stick
- Slide bar. Move it sideways to release the latch it is tied to.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 | Upper left | Open |
| 4 | Center | Open |
| 5 | Center | Open |
| 6 | Lower center | Open |
| 7 | Upper center | Open |
| 8 | Lower right | Open |
| 9 | Middle right | Open |
| 10 | Upper right | Open |
- Ring 8 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
- Ring 10 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 3 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 6. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
Board · D

14 rings, 11 blocking pins, 5 slide bars, 4 clamps
Ring numbers
1234567891011121314
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: 14 · Blocking pins: 11 · Stop pins: 3 · Slide bars: 5 · Clamps: 4 · 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. This candidate assumes a clamp opens when its paired bar leaves; confirm this behavior in the game.
Rotate Ring 1 counterclockwise about 60°. Target opening direction: 60° (right 0°, up 90°). Release and wait. Expected departure: Ring 1. Expected remainder: 13 rings, 5 bars.
Rotate Ring 2 clockwise about 150°. Target opening direction: 30° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 12 rings, 5 bars.
Rotate Ring 3 clockwise about 150°. Target opening direction: 120° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 11 rings, 5 bars.
Move S3 left along its track about 5.14 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S3. Expected remainder: 11 rings, 4 bars.
Rotate Ring 8 clockwise about 60°. Target opening direction: 120° (right 0°, up 90°). Release and wait. Expected departure: Ring 8. Expected remainder: 10 rings, 4 bars.
Rotate Ring 13 clockwise about 150°. Target opening direction: 300° (right 0°, up 90°). Release and wait. Expected departure: Ring 13. Expected remainder: 9 rings, 4 bars.
Move S5 down along its track about 3.29 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S5. Expected remainder: 9 rings, 3 bars.
Move S4 right along its track about 1.71 ring radii. Release and wait. No departure is expected yet. Expected remainder: 9 rings, 3 bars.
Move S4 right along its track about 1.71 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S4. Expected remainder: 9 rings, 2 bars.
Rotate Ring 14 counterclockwise about 150°. Target opening direction: 150° (right 0°, up 90°). Release and wait. Expected departure: Ring 14, Ring 9. Expected remainder: 7 rings, 2 bars.
Rotate Ring 11 clockwise about 53°. Target opening direction: 127° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 7 rings, 2 bars.
Rotate Ring 12 clockwise about 4°. This closed ring turns together with its pins. Release and wait. Expected departure: Ring 12. Expected remainder: 6 rings, 2 bars.
Rotate Ring 7 counterclockwise about 102°. Target opening direction: 117° (right 0°, up 90°). Release and wait. Expected departure: Ring 5, Ring 7. Expected remainder: 4 rings, 2 bars.
Move S1 up along its track about 11.14 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S1. Expected remainder: 4 rings, 1 bars.
Rotate Ring 4 clockwise about 95°. Target opening direction: 355° (right 0°, up 90°). Release and wait. Expected departure: Ring 4, Ring 6. Expected remainder: 2 rings, 1 bars.
Move S2 left along its track about 6.00 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S2. Expected remainder: 2 rings, 0 bars.
Rotate Ring 11 counterclockwise about 113°. Target opening direction: 240° (right 0°, up 90°). Release and wait. Expected departure: Ring 10, Ring 11. 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 →
- Stop pin
- Limits how far a ring can turn, so only part of the ring is reachable.Read the mechanism guide →
- Latch
- Holds a ring in place. A stick locks it, so release the stick first and then turn the matching ring.Read the mechanism guide →
- Stick
- Slide bar. Move it sideways to release the latch it is tied to.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 | Upper center | Open |
| 2 | Upper center | Open |
| 3 | Lower center | Open |
| 4 | Lower center | Open |
| 5 | Center | Open |
| 6 | Lower center | Open |
| 7 | Center | Open |
| 8 | Upper center | Open |
| 9 | Upper center | Open |
| 10 | Lower center | Open |
| 11 | Lower center | Open |
| 12 | Center | Closed |
| 13 | Center | Open |
| 14 | Upper center | Open |
- Ring 4 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 6 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 13. Check this pair on the diagram.
- Ring 12 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 8. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 14. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 1. Check this pair on the diagram.
- Ring 10 is connected to a blocking relationship with ring 11. Check this pair on the diagram.
Board · H

9 rings, 9 blocking pins, 8 slide bars, 8 clamps
Ring numbers
123456789
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: 9 · Blocking pins: 9 · Stop pins: 1 · Slide bars: 8 · Clamps: 8 · Bombs: 0
Ring connections and board notes
This board has been reconstructed, but its complete move sequence is not yet available. Use the numbered diagram and report a tested opening move to help refine it.
8 slide bars are shown. Match their tracks and connected clamps on the diagram.
8 clamps are shown. Locate each clamp and its linked slide bar before moving either object.
Ring 1 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 2 is open. A pin carried by Ring 3 connects to this ring; the opening in Ring 2 provides a release point for that connection.
Ring 3 is open. This ring carries a pin connected to Ring 2; the pin moves with its owner ring.
Ring 4 is open. A pin carried by Ring 5 connects to this ring; the opening in Ring 4 provides a release point for that connection. This ring carries a pin connected to Ring 6; the pin moves with its owner ring.
Ring 5 is open. This ring carries a pin connected to Ring 4; the pin moves with its owner ring. This ring carries a pin connected to Ring 7; the pin moves with its owner ring.
Ring 6 is open. A pin carried by Ring 1 connects to this ring; the opening in Ring 6 provides a release point for that connection. A pin carried by Ring 8 connects to this ring; the opening in Ring 6 provides a release point for that connection. A pin carried by Ring 4 connects to this ring; the opening in Ring 6 provides a release point for that connection. A pin carried by Ring 7 connects to this ring; the opening in Ring 6 provides a release point for that connection.
Ring 7 is open. A pin carried by Ring 5 connects to this ring; the opening in Ring 7 provides a release point for that connection. This ring carries a pin connected to Ring 6; the pin moves with its owner ring.
Ring 8 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 9 is open. A pin carried by Ring 8 connects to this ring; the opening in Ring 9 provides a release point for that connection.
Rings fly away automatically once their connections and constraints are released. The diagram numbers identify rings; they are not an operation sequence.
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 →
- Stop pin
- Limits how far a ring can turn, so only part of the ring is reachable.Read the mechanism guide →
- Latch
- Holds a ring in place. A stick locks it, so release the stick first and then turn the matching ring.Read the mechanism guide →
- Stick
- Slide bar. Move it sideways to release the latch it is tied to.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 | Closed |
| 2 | Upper left | Open |
| 3 | Upper left | Open |
| 4 | Lower center | Open |
| 5 | Lower center | Open |
| 6 | Center | Open |
| 7 | Lower center | Open |
| 8 | Center | Closed |
| 9 | Upper right | Open |
- Ring 1 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
- Ring 3 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 7 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 4. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
Board · I

19 rings, 24 blocking pins
Ring numbers
12345678910111213141516171819
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: 19 · Blocking pins: 24 · Stop pins: 0 · Slide bars: 0 · Clamps: 0 · Bombs: 0
Step-by-step walkthrough
The complete route is still being worked out. Only the opening moves below passed the current checks; they do not establish a full solution.
Rotate Ring 4 counterclockwise about 51°. Target opening direction: 195° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 19 rings, 0 bars.
Rotate Ring 15 clockwise about 39°. Target opening direction: 172° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 19 rings, 0 bars.
Rotate Ring 8 clockwise about 108°. Target opening direction: 342° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 19 rings, 0 bars.
Rotate Ring 13 clockwise about 40°. Target opening direction: 0° (right 0°, up 90°). Release and wait. Expected departure: Ring 13. Expected remainder: 18 rings, 0 bars.
Rotate Ring 8 clockwise about 85°. Target opening direction: 257° (right 0°, up 90°). Release and wait. Expected departure: Ring 8. Expected remainder: 17 rings, 0 bars.
Rotate Ring 7 counterclockwise about 45°. Target opening direction: 181° (right 0°, up 90°). Release and wait. Expected departure: Ring 7. Expected remainder: 16 rings, 0 bars.
Rotate Ring 12 clockwise about 100°. Target opening direction: 168° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 16 rings, 0 bars.
Rotate Ring 6 clockwise about 56°. Target opening direction: 177° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 15 rings, 0 bars.
Rotate Ring 12 clockwise about 93°. Target opening direction: 75° (right 0°, up 90°). Release and wait. Expected departure: Ring 12. Expected remainder: 14 rings, 0 bars.
Rotate Ring 14 counterclockwise about 51°. Target opening direction: 3° (right 0°, up 90°). Release and wait. Expected departure: Ring 14. Expected remainder: 13 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 | Closed |
| 2 | Middle left | Open |
| 3 | Upper left | Closed |
| 4 | Center | Open |
| 5 | Center | Open |
| 6 | Lower center | Open |
| 7 | Upper center | Open |
| 8 | Upper center | Open |
| 9 | Center | Closed |
| 10 | Lower center | Open |
| 11 | Upper center | Open |
| 12 | Lower center | Open |
| 13 | Upper center | Open |
| 14 | Lower center | Open |
| 15 | Center | Open |
| 16 | Center | Open |
| 17 | Lower right | Closed |
| 18 | Middle right | Open |
| 19 | Upper right | Closed |
- Ring 9 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 3 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 3 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 3 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 17 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 17 is connected to a blocking relationship with ring 14. Check this pair on the diagram.
- Ring 17 is connected to a blocking relationship with ring 18. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 13. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 18. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 11 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 10 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 18 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 7 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 13 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 14 is connected to a blocking relationship with ring 12. Check this pair on the diagram.
- Ring 6 is connected to a blocking relationship with ring 12. Check this pair on the diagram.
Board · J

19 rings, 24 blocking pins
Ring numbers
12345678910111213141516171819
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: 19 · Blocking pins: 24 · Stop pins: 0 · Slide bars: 0 · Clamps: 0 · Bombs: 0
Step-by-step walkthrough
The complete route is still being worked out. Only the opening moves below passed the current checks; they do not establish a full solution.
Rotate Ring 4 counterclockwise about 66°. Target opening direction: 210° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 19 rings, 0 bars.
Rotate Ring 15 clockwise about 54°. Target opening direction: 157° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 19 rings, 0 bars.
Rotate Ring 8 clockwise about 123°. Target opening direction: 327° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 19 rings, 0 bars.
Rotate Ring 13 clockwise about 55°. Target opening direction: 345° (right 0°, up 90°). Release and wait. Expected departure: Ring 13. Expected remainder: 18 rings, 0 bars.
Rotate Ring 8 clockwise about 85°. Target opening direction: 242° (right 0°, up 90°). Release and wait. Expected departure: Ring 8. Expected remainder: 17 rings, 0 bars.
Rotate Ring 7 counterclockwise about 60°. Target opening direction: 196° (right 0°, up 90°). Release and wait. Expected departure: Ring 7. Expected remainder: 16 rings, 0 bars.
Rotate Ring 12 clockwise about 115°. Target opening direction: 153° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 16 rings, 0 bars.
Rotate Ring 6 clockwise about 71°. Target opening direction: 162° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 15 rings, 0 bars.
Rotate Ring 12 clockwise about 93°. Target opening direction: 60° (right 0°, up 90°). Release and wait. Expected departure: Ring 12. Expected remainder: 14 rings, 0 bars.
Rotate Ring 14 counterclockwise about 66°. Target opening direction: 18° (right 0°, up 90°). Release and wait. Expected departure: Ring 14. Expected remainder: 13 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 | Closed |
| 2 | Middle left | Open |
| 3 | Upper left | Closed |
| 4 | Center | Open |
| 5 | Center | Open |
| 6 | Lower center | Open |
| 7 | Upper center | Open |
| 8 | Upper center | Open |
| 9 | Center | Closed |
| 10 | Lower center | Open |
| 11 | Upper center | Open |
| 12 | Lower center | Open |
| 13 | Upper center | Open |
| 14 | Lower center | Open |
| 15 | Center | Open |
| 16 | Center | Open |
| 17 | Lower right | Closed |
| 18 | Middle right | Open |
| 19 | Upper right | Closed |
- Ring 9 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 3 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 3 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
- Ring 3 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 5. Check this pair on the diagram.
- Ring 17 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 17 is connected to a blocking relationship with ring 14. Check this pair on the diagram.
- Ring 17 is connected to a blocking relationship with ring 18. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 13. Check this pair on the diagram.
- Ring 19 is connected to a blocking relationship with ring 18. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 6. Check this pair on the diagram.
- Ring 1 is connected to a blocking relationship with ring 2. Check this pair on the diagram.
- Ring 11 is connected to a blocking relationship with ring 16. Check this pair on the diagram.
- Ring 10 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 18 is connected to a blocking relationship with ring 15. Check this pair on the diagram.
- Ring 7 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 13 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 14 is connected to a blocking relationship with ring 12. Check this pair on the diagram.
- Ring 6 is connected to a blocking relationship with ring 12. Check this pair on the diagram.
Frequently asked questions
Which board should I use for level 15?
This page has 7 distinct boards. The default A board has 9 rings and 9 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 15?
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.