Short description. Given two walks, one "truly random" and one generated by myself, determine which one has been generated by me. Resolves YES if the green walk has been created by me and NO if the red one has been.

More steps will be revealed as time goes on. For the raw data, see the comment section.

(Huge thanks to @roma for creating this embed.)

--------

Detailed description:

I have generated two "walks".

One of the strings was created by me by pressing the arrow keys (up, right, down, left) on my keyboard. I produced a string of length 300. This took me roughly 40 seconds.

Another string was generated by using a "true" source of randomness, each of the four directions being equally likely and independent of each other.

I will successively reveal more steps as time progresses. These new characters, together with the old ones, will be posted to the comment section below. [This is not the cleanest solution, but was the easiest way to automate regular updates.] I reserve the right to modify the pace of new information.

The market will resolve at the latest when all of the 300 characters have been revealed and people have made their final bets.

I have practiced this.

I may answer to further questions.

I won't bet on this market.

See also: How long will this take?

For further reference, here is the final data (300 steps).

RED: UURRRULDDURRURUUULLDRRULUUDLLRLRUULDUDDULLRULLDRLLRDDURUUUDLLRULLRLDRUUDDLDDRLUDLLRDRRULDDLLUDLLDUUDDULDDDUDRDRULDDRULLLRDDDRRLDRLURDLRUDRDRUUDDDRULLLURRDDRUDDURRURRUURUDLRRLRDDUDUUDRLRRULRDURRUUDLRDDRLRLURRUDLDRLLRUUURRUUULRRRLRRULLRUURDLRRLDDLDUUDRLLUDDRRLLLUURURLLLRRLUUUDRRLUUDDLLDLDDRLLDRULDDRRL

GREEN: LDLDRLRUDDDRLDDRLULDDDRLDURURDUDDDLRLDULDLLRLDDRRUULLDURRLLDUDURLRLUUDLULLRDRLUDLLLRDDRUDLLLLDUUDLDLDLDDRUURRRLURLLRRULRRDLUDUUULDRRRRLDURDLLLLURDDURDDLLUUUURLDDULLRDLDDDUULLLDUDRUURLLLUDUDRDLDRLRLLULRDUUDLUDUDURUDUULDRRULDLRULLDLLRLRDRUDDLLDLDRURUULUULUDLDULRLUDLLLRDURULLDDUDDRUUUDLLRRDDDRLRULDLLRL