I meant the drawbridge puzzle. If you don't want to lose your nerves completely there
then you can do the following:
1. Ignore the levers. Jump in the water. Swim to the north drawbridge.
2. Climb on the north drawbridge there. All three parts of the north drawbridge are down now so that it is possible.
3. Climb the chain at the exit to the north part of the dungeon. It is possible. Enter the north part of the dungeon.
4. Click all three levers in the north part. ALL parts of the drawbridges will go up. No more jumping over missing parts of the drawbridges. No more frustration when some parts of the drawbridges are going up but other ones are going down.