play with your mind

Let me play with your mind!!!

To begin with pick any number from the columns below, and keep it in mind!
1 2 3
4 5 6
7 8 9
10 11 12
13 14 15
16 17 18
19 20 21
1st 2nd 3rd
STEP 1: Having the number you chose in mind, click on the number of the column that it's displayed at, eg.1st,2nd or 3rd and press NEXT