Can you solve it? The pain and pleasure of Japanese puzzles

A new logic puzzle from Japan, and another chance to be a number ninja

UPDATE: Click here for the solutions and the results of the Nikoli Derby

Hi guzzlers

Last column we played the Nikoli Derby, a Japanese game in which I asked you to submit the lowest number nobody else submits. The winner was 69. Honestly! It was such fun that we're going play another round today, below. (Again, there's a prize). Your strategy, however, may be different, since this time you can make a decision based on how people voted last time.