Knightmove Test: Grandmaster predictior?

Physiologist Dr. Pavel Cerny used this test to test out young player. It is believed a good time record in the first try shows the potential of future strong player.. ( I don't have the stats maybe someone out there does.) A 1st time score of less than 3 minutes shows the promise of a future Grandmaster... Reducing the time score in the 2nd try by half shows a strong ability ...

Time yourself...

Make succesive Knightmoves so that the knight visits all appropriate squares.

b1,c1,d1,e1,f1, g1,h1,a2,c2,f2,h2,a3,b3,d3, and so on until you reach h8.

1. Can not take any pawns.

2. Can not put your Knight in en prise.

( Black pawns are moving down the board. Ignore the kings on board could not show board test without kings ... use test at home .)

http://www.chess.com/forum/view/general/chess-iq-test-quick

Thanks !