Before we get into the rules and regulations, we need to understand the kind of snooker balls that are present on the table, and their significance. There is one white ball and this is the cue ball that the snooker player needs to make use of to hit the other snooker balls on the table. Apart from this there are 15 red colored balls on the table, and there are 6 colored balls (that are known as the Colors). These colors are Green, Brown, Yellow, Blue, Pink and Black.
When the table is being set up, the green, brown and yellow balls need to be placed on the Balk Line. The green ball comes on the left side where the D meets the Balk Line, the brown balls comes on the middle point and the yellow ball comes on the right side where the D meets the Balk Line (this combination can be remembered with the help of the mnemonic God Bless You). Now the blue ball comes at the exact center of the table. The pink ball comes at the mid-point between the blue ball and the Top Cushion, and the balls are placed close together in a tight triangle (with the help of a frame) just behind the pink ball without touching it. Lastly, the black ball is placed between the red balls and the Top Cushion. Every snooker table has some markings to indicate the exact position at which the various snooker balls need to be placed, so it is not that hard to figure out.