IEEE Weekly Puzzle #36 – Smallest Number

30 March 2015 Comments Off on IEEE Weekly Puzzle #36 – Smallest Number

You are to generate a

9-digit number, using the numbers from 1 to 9 once. The conditions are:

-The sum of each consecutive triplet (three consecutive digits) must be smaller than 17.

-Two odd or two even numbers may not be next to each other.

Given these conditions, what is the smallest possible positive number that can be generated?

The Prize for This Question: Toshiba 8GB Flash Drive

Send your answer to by 5:30 p.m. on April 7, or visit to submit your answer online, and get a chance to win the prize!

This question was prepared by Emrehan Halıcı, president of the Turkey Intelligence Foundation, for Bilkent IEEE.