Yesterday I posted a puzzle and promised the solution today. If you didn’t try it, take a few moments now to give it a go before looking at the answer. For everyone else, read on….
So, the image above shows the number 9 in Roman numerals. Your task was to draw one single continuous line and turn this into a 6. I originally thought that there was only one solution, but it turns out that there are (at least) two.
Solution 1 is rather elegant:
Solution 2 was suggested by Bugs Man and is somewhat more involved:
The puzzle is here, but does not appear to be very well known, and that site only gives the first solution.
My thanks to Bugs Man for the graphics, and the second solution.
So, how did you get on? Did you come up with Solution 1 or Solution 2?
Update: The way in which you tackled the problem might give you some insight into you thinking style. Solution 1 is all about mental set. The puzzle is created to make you think about Roman Numerals, but the obvious solution requires you to think of the image as ‘ix’ rather than ‘IX”. Solution 2 is harder work but, in a way, more logical. So, people who produced Solution 1 first might be more likely to be lateral thinkers whereas those who produced Solution 2 might be more likely to be logical thinkers.