Here is the solution for the Tricky Dick puzzle.
Here are first the names/explanations of the different parts used in the solution.
The long rop going from the long stick to the half sphere where is the ring at the beginning will be named “ROPE A”
The small rope keeping both sticks next to each other will be named “ROPE B”
The extremity where both sticks are bound (with a very small rope piece) will be named “EXTREMITY 1″
The extremity where rope A is bound to the long stick will be called “EXTREMITY 2″
First, push the ring next to both sticks through rope B.
Next move the ring over extremity 2 (the extremity gets inside the ring)
Move the ring along the long stick and have it go through rope B again
Warning, small step but very important one to avoid ending with a big bag of nodes! Move as well the rest of rope A through rope B as shown on picture 4
From this state, the ring must do a full circle around both sticks as shown by the arrows. First remove the ring from the long stick through extremity 2 (Warning: this time the ring must not go through rope B, but it is rope B that goes through the ring!) then all along the small stick, U-turn at the extremity 1 to get back to the initial position.
For clarity sake, the next 4 pictres show the full circle done by the ring:
Just push now the ring through rope B
Well done, it is free !
To put it back, just follow the procedure in reverse order.