I have found that when I am tired I have trouble getting past level 4 (I keep falling off the teeter totter at the end. When I’m in a rush and just want to see how far and fast I can get I uncannily have fallen off just before 15. The stairwell at 18 I have fallen off a couple of times in my many times of playing but it is no longer a challenge it is quite easy. Level 20 used to be a tricky spot for me until I found the trick. The levels that are like 22 (if you aren’t paying attention- or you’re at a low concentration level or high stress) you will fall off. level 30 can be tricky I’ve fallen a couple there too. I have made it to practice levelA only twice so far since dec25,2011 (I’ve played it less than 100 times and more than 30 times for sure but can’t be exact) – So far the highest I’ve ever made it to was level 62 before loosing concentration.

Once you are familiar with the puzzle it is a good measure of your stress level. If your stress level is high or concentration level is low you will most likely fall off at your popular fall off points.

In any case, keep your mind sharp and happy Perplexing.

http://www.youtube.com/watch?v=q8D1vEHTvBE

Thanks.