This month's riddle was suggested by Lian Wang. More about its origins will
be stated on the solution page.
Consider the following random walk process. The walk is on the real number
line. It starts at
The question: what is the probability, as a function of As usual, prove your answer, and please send original solutions only. |
## List of solvers:Dan Dima (1 June 18:39)Lin Jin (4 June 01:59) Uoti Urpala (4 June 09:54) JJ Rabeyrin (4 June 18:25) Ganesh Lakshminarayana (20 June 10:17) |

Elegant and original solutions can be submitted to the puzzlemaster at __riddlesbrand.scso.com__.
Names of solvers will be posted on this page. Notify if you don't want
your name to be mentioned.

The solution will be published at the end of the month.

Enjoy!