Level 16
10 Rings · 10 Board
Rotate Rings
Rotate Rings Level 18 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
11 rings, 10 blocking pins, 6 slide bars, 8 clamps
1234567891011
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 / C / D / F / G
11 rings, 10 blocking pins, 6 slide bars, 8 clamps
Ring numbers
1234567891011
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: 11 · Blocking pins: 10 · Stop pins: 0 · Slide bars: 6 · Clamps: 8 · Bombs: 0
Ring connections and board notes
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.
6 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 open. A pin carried by Ring 2 connects to this ring; the opening in Ring 1 provides a release point for that connection.
Ring 2 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 3 is open. A pin carried by Ring 2 connects to this ring; the opening in Ring 3 provides a release point for that connection.
Ring 4 is open. A pin carried by Ring 9 connects to this ring; the opening in Ring 4 provides a release point for that connection.
Ring 5 is open. A pin carried by Ring 2 connects to this ring; the opening in Ring 5 provides a release point for that connection. A pin carried by Ring 10 connects to this ring; the opening in Ring 5 provides a release point for that connection.
Ring 6 is open. This ring carries a pin connected to Ring 7; the pin moves with its owner ring.
Ring 7 is open. A pin carried by Ring 11 connects to this ring; the opening in Ring 7 provides a release point for that connection. A pin carried by Ring 6 connects to this ring; the opening in Ring 7 provides a release point for that connection.
Ring 8 is open. A pin carried by Ring 9 connects to this ring; the opening in Ring 8 provides a release point for that connection.
Ring 9 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 10 is open. A pin carried by Ring 9 connects to this ring; the opening in Ring 10 provides a release point for that connection. This ring carries a pin connected to Ring 5; the pin moves with its owner ring.
Ring 11 is open. This ring carries a pin connected to Ring 7; the pin moves with its owner ring.
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 →
- 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 | Lower center | Open |
| 2 | Center | Closed |
| 3 | Upper center | Open |
| 4 | Lower center | Open |
| 5 | Center | Open |
| 6 | Upper center | Open |
| 7 | Upper center | Open |
| 8 | Lower right | Open |
| 9 | Lower right | Closed |
| 10 | Middle right | Open |
| 11 | Upper right | Open |
- Ring 11 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.
- Ring 2 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 1. Check this pair on the diagram.
- Ring 10 is connected to a blocking relationship with ring 5. 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 4. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 10. Check this pair on the diagram.
- Ring 6 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
Board · B
9 rings, 8 blocking pins, 11 slide bars, 13 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: 8 · Stop pins: 0 · Slide bars: 11 · Clamps: 13 · 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 counterclockwise about 66°. Target opening direction: 41° (right 0°, up 90°). Release and wait. Expected departure: Ring 7. Expected remainder: 8 rings, 11 bars.
Rotate Ring 6 counterclockwise about 74°. Target opening direction: 115° (right 0°, up 90°). Release and wait. Expected departure: Ring 4. Expected remainder: 7 rings, 11 bars.
Rotate Ring 6 counterclockwise about 107°. Target opening direction: 222° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 6 rings, 11 bars.
Rotate Ring 9 clockwise about 89°. Target opening direction: 291° (right 0°, up 90°). Release and wait. Expected departure: Ring 8. Expected remainder: 5 rings, 11 bars.
Rotate Ring 9 clockwise about 64°. Target opening direction: 227° (right 0°, up 90°). Release and wait. Expected departure: Ring 5, Ring 9. Expected remainder: 3 rings, 11 bars.
Rotate Ring 3 counterclockwise about 54°. Target opening direction: 145° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 3 rings, 11 bars.
Rotate Ring 2 counterclockwise about 21°. Target opening direction: 181° (right 0°, up 90°). Release and wait. Expected departure: Ring 3. Expected remainder: 2 rings, 11 bars.
Move S11 down along its track about 4.00 ring radii. Release and wait. No departure is expected yet. Expected remainder: 2 rings, 11 bars.
Move S7 right along its track about 6.57 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S7. Expected remainder: 2 rings, 10 bars.
Rotate Ring 2 clockwise about 114°. Target opening direction: 67° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 2 rings, 10 bars.
Move S8 right along its track about 0.86 ring radii. Release and wait. No departure is expected yet. Expected remainder: 2 rings, 10 bars.
Rotate Ring 2 counterclockwise about 170°. Target opening direction: 237° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 1 rings, 10 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 →
- 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 | Middle left | Open |
| 3 | Upper center | Open |
| 4 | Center | Open |
| 5 | Lower center | Open |
| 6 | Center | Open |
| 7 | Center | Open |
| 8 | Lower right | Open |
| 9 | Lower right | Open |
- Ring 1 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 6. Check this pair on the diagram.
- Ring 5 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 3. Check this pair on the diagram.
- Ring 8 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
Board · E
10 rings, 9 blocking pins, 4 slide bars, 4 clamps
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: 9 · Stop pins: 2 · Slide bars: 4 · Clamps: 4 · 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.
4 slide bars are shown. Match their tracks and connected clamps on the diagram.
4 clamps are shown. Locate each clamp and its linked slide bar before moving either object.
Ring 1 is open. A pin carried by Ring 2 connects to this ring; the opening in Ring 1 provides a release point for that connection. A pin carried by Ring 3 connects to this ring; the opening in Ring 1 provides a release point for that connection.
Ring 2 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 3 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 1; the pin moves with its owner ring.
Ring 4 is open. A pin carried by Ring 3 connects to this ring; the opening in Ring 4 provides a release point for that connection. This ring carries a pin connected to Ring 7; the pin moves with its owner ring.
Ring 5 is open. A pin carried by Ring 2 connects to this ring; the opening in Ring 5 provides a release point for that connection. This ring carries a pin connected to Ring 8; the pin moves with its owner ring.
Ring 6 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 7 is open. A pin carried by Ring 4 connects to this ring; the opening in Ring 7 provides a release point for that connection. This ring carries a pin connected to Ring 9; the pin moves with its owner ring.
Ring 8 is open. A pin carried by Ring 5 connects to this ring; the opening in Ring 8 provides a release point for that connection.
Ring 9 is open. A pin carried by Ring 7 connects to this ring; the opening in Ring 9 provides a release point for that connection. A pin carried by Ring 10 connects to this ring; the opening in Ring 9 provides a release point for that connection.
Ring 10 is open. This ring carries a pin connected to Ring 9; the pin moves with its owner ring.
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 | Open |
| 2 | Lower left | Closed |
| 3 | Middle left | Open |
| 4 | Upper center | Open |
| 5 | Lower center | Open |
| 6 | Center | Closed |
| 7 | Upper center | Open |
| 8 | Lower right | Open |
| 9 | Middle right | Open |
| 10 | Middle right | Open |
- Ring 5 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 5. Check this pair on the diagram.
- Ring 2 is connected to a blocking relationship with ring 1. Check this pair on the diagram.
- Ring 3 is connected to a blocking relationship with ring 4. Check this pair on the diagram.
- Ring 3 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 7 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.
Board · H
11 rings, 10 blocking pins, 6 slide bars, 8 clamps
Ring numbers
1234567891011
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: 11 · Blocking pins: 10 · Stop pins: 0 · Slide bars: 6 · Clamps: 8 · Bombs: 0
Ring connections and board notes
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.
6 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 open. A pin carried by Ring 2 connects to this ring; the opening in Ring 1 provides a release point for that connection.
Ring 2 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 3 is open. A pin carried by Ring 2 connects to this ring; the opening in Ring 3 provides a release point for that connection.
Ring 4 is open. A pin carried by Ring 9 connects to this ring; the opening in Ring 4 provides a release point for that connection.
Ring 5 is open. A pin carried by Ring 2 connects to this ring; the opening in Ring 5 provides a release point for that connection. A pin carried by Ring 10 connects to this ring; the opening in Ring 5 provides a release point for that connection.
Ring 6 is open. This ring carries a pin connected to Ring 7; the pin moves with its owner ring.
Ring 7 is open. A pin carried by Ring 11 connects to this ring; the opening in Ring 7 provides a release point for that connection. A pin carried by Ring 6 connects to this ring; the opening in Ring 7 provides a release point for that connection.
Ring 8 is open. A pin carried by Ring 9 connects to this ring; the opening in Ring 8 provides a release point for that connection.
Ring 9 is closed and has no gap. Match its number, position and connections to the board in your game.
Ring 10 is open. A pin carried by Ring 9 connects to this ring; the opening in Ring 10 provides a release point for that connection. This ring carries a pin connected to Ring 5; the pin moves with its owner ring.
Ring 11 is open. This ring carries a pin connected to Ring 7; the pin moves with its owner ring.
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 →
- 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 | Lower center | Open |
| 2 | Center | Closed |
| 3 | Upper center | Open |
| 4 | Lower center | Open |
| 5 | Center | Open |
| 6 | Upper center | Open |
| 7 | Upper center | Open |
| 8 | Lower right | Open |
| 9 | Lower right | Closed |
| 10 | Middle right | Open |
| 11 | Upper right | Open |
- Ring 11 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.
- Ring 2 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 1. Check this pair on the diagram.
- Ring 10 is connected to a blocking relationship with ring 5. 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 4. Check this pair on the diagram.
- Ring 9 is connected to a blocking relationship with ring 10. Check this pair on the diagram.
- Ring 6 is connected to a blocking relationship with ring 7. Check this pair on the diagram.
Board · I
13 rings, 12 blocking pins, 11 slide bars, 11 clamps
Ring numbers
12345678910111213
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: 13 · Blocking pins: 12 · Stop pins: 1 · Slide bars: 11 · Clamps: 11 · 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 2 clockwise about 150°. Target opening direction: 30° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 12 rings, 11 bars.
Move S11 up along its track about 4.00 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S11. Expected remainder: 12 rings, 10 bars.
Move S5 right along its track about 5.57 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S5. Expected remainder: 12 rings, 9 bars.
Rotate Ring 10 clockwise about 55°. Target opening direction: 300° (right 0°, up 90°). Release and wait. Expected departure: Ring 10. Expected remainder: 11 rings, 9 bars.
Rotate Ring 6 clockwise about 150°. Target opening direction: 300° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 10 rings, 9 bars.
Rotate Ring 3 clockwise about 150°. Target opening direction: 120° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 10 rings, 9 bars.
Rotate Ring 8 clockwise about 37°. Target opening direction: 53° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 10 rings, 9 bars.
Rotate Ring 11 clockwise about 14°. Target opening direction: 346° (right 0°, up 90°). Release and wait. Expected departure: Ring 11. Expected remainder: 9 rings, 9 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 →
Ring positions and connections
Positions refer to the diagram. Connections describe what to inspect, not an additional removal order.
| Ring | Position | Type |
|---|---|---|
| 1 | Upper left | Open |
| 2 | Upper left | Open |
| 3 | Lower left | Open |
| 4 | Lower left | Open |
| 5 | Upper center | Open |
| 6 | Upper center | Open |
| 7 | Lower center | Open |
| 8 | Lower center | Open |
| 9 | Upper center | Open |
| 10 | Upper center | Open |
| 11 | Lower center | Open |
| 12 | Upper right | Open |
| 13 | Middle right | Open |
- Ring 9 is connected to a blocking relationship with ring 10. Check this pair on the diagram.
- Ring 5 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 5. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 13. Check this pair on the diagram.
- Ring 6 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 8. Check this pair on the diagram.
- Ring 7 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 7 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 3. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
Board · J
13 rings, 12 blocking pins, 11 slide bars, 11 clamps
Ring numbers
12345678910111213
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: 13 · Blocking pins: 12 · Stop pins: 1 · Slide bars: 11 · Clamps: 11 · 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 2 clockwise about 165°. Target opening direction: 15° (right 0°, up 90°). Release and wait. Expected departure: Ring 2. Expected remainder: 12 rings, 11 bars.
Move S11 up along its track about 4.00 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S11. Expected remainder: 12 rings, 10 bars.
Move S5 right along its track about 5.71 ring radii. Continue until the bar leaves the board. Release and wait. Expected departure: S5. Expected remainder: 12 rings, 9 bars.
Rotate Ring 10 clockwise about 70°. Target opening direction: 285° (right 0°, up 90°). Release and wait. Expected departure: Ring 10. Expected remainder: 11 rings, 9 bars.
Rotate Ring 6 clockwise about 165°. Target opening direction: 285° (right 0°, up 90°). Release and wait. Expected departure: Ring 6. Expected remainder: 10 rings, 9 bars.
Rotate Ring 3 clockwise about 165°. Target opening direction: 105° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 10 rings, 9 bars.
Rotate Ring 8 clockwise about 37°. Target opening direction: 53° (right 0°, up 90°). Release and wait. No departure is expected yet. Expected remainder: 10 rings, 9 bars.
Rotate Ring 11 clockwise about 14°. Target opening direction: 346° (right 0°, up 90°). Release and wait. Expected departure: Ring 11. Expected remainder: 9 rings, 9 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 →
Ring positions and connections
Positions refer to the diagram. Connections describe what to inspect, not an additional removal order.
| Ring | Position | Type |
|---|---|---|
| 1 | Upper left | Open |
| 2 | Upper left | Open |
| 3 | Lower left | Open |
| 4 | Lower left | Open |
| 5 | Upper center | Open |
| 6 | Upper center | Open |
| 7 | Lower center | Open |
| 8 | Lower center | Open |
| 9 | Upper center | Open |
| 10 | Upper center | Open |
| 11 | Lower center | Open |
| 12 | Upper right | Open |
| 13 | Middle right | Open |
- Ring 9 is connected to a blocking relationship with ring 10. Check this pair on the diagram.
- Ring 5 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 5. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 9. Check this pair on the diagram.
- Ring 12 is connected to a blocking relationship with ring 13. Check this pair on the diagram.
- Ring 6 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 8. Check this pair on the diagram.
- Ring 7 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
- Ring 7 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 3. Check this pair on the diagram.
- Ring 4 is connected to a blocking relationship with ring 8. Check this pair on the diagram.
Frequently asked questions
Which board should I use for level 18?
This page has 6 distinct boards. The default A board has 11 rings and 10 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 18?
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.
