In our running Wetten, dass ... ? marathon, our next feature is 11-year-old David Öttinger. David is blindfolded, and when given the name of a country somewhere in the world, he can name every country that borders the named country!

If you want to learn this feat yourself, try practicing with Sporcle's geography games.

Video Format:
YouTube

In our final Wetten, dass ... ? clip for the day, Florian Osmani performs the classic Day of the Week For Any Date feat. 8-year-old Florian bets that he can name the day of the week for any date from October 15, 1582 to December 31, 3499. If you've learned and practiced this feat, see if you can get the dates without looking at the video!

Video Format:
YouTube

Here's an interesting challenge from Wetten, dass ... ?. Before going on the air, Boris Konrad memorized 5 unsolved Sudoku puzzles. In the clip itself, he is shown 100 solved Sudoku puzzles, and has 4 minutes to identify at least 4 of the 5 puzzles he memorized! Can he do it?

Video Format:
YouTube

Here's young Fabrice Becker, performing on Wetten, dass ... ?. Fabrice has memorized each of the pieces from twelve 600-piece puzzles, and bets that, shown any piece from anyone of the puzzles, he can identify that puzzle by its number!

Video Format:
Windows Media

When searching for information about the Knight's Tour last year, I ran across this ChessBase column and learned about young Xaver Neuhäusler and his appearance on a German TV show called Wetten, dass ... ? (German for Betting, that ... ?), where he performed a blindfolded Knight's Tour!

Back in may of last year, I actually linked to numerous videos from the show Wetten, dass ... ?, which have since been removed. Fortunately, many of these have been posted on various video sites around the internet. This and the next few entries will be some of the lost files from this German TV show.

Video Format:
YouTube