Considering all the ground we covered last week, we can reach some quick and general conclusions on the best ways to play certain way tickets.
Sixes are best played with groups of three. Since six is an even number we have available a group size that is exactly half the size of our way of interest, and that is always the best way to construct a way ticket.
Of interest here is the old 12-spot four groups of three, which gives you a 6-way-6. This is an old school classic keno ticket. Tickets made of fours and twos are worth considering also; for instance, 4-2-2-2 is a 10-spot giving you a 4-way-6. This is the 6-spot equivalent of the old school classic 4-way-9 (6-3-3-3).
Sevens are best constructed of fours and threes, and the resultant number of ways will be the simple multiplicative product of the number of respective groups. For instance, five groups of four and four groups of three (32 spots total) will result in 5 x 4 = 20-way-7 spot.
Eights are best constructed of groups of four, and the distribution of ways follows the typical pascal triangle: 1, 3, 6, 10, 15, 21, 28, etc. per number of 4-spot groups just like the six and all other even way tickets.
Nine-spots are best formed by 5s and 4s and function in a multiplicative fashion like sevens and all other odd number tickets. Also consider sixes and threes to form your way nines; several old school classic way nines are constructed of sixes and threes. Consider the classic 4-way-9, which could be written two ways – with 12-spots, grouped 3-3-3-3 or with 15-spots grouped 6-3-3-3.
The 15-spot is just slightly better for the player.
The rest of the keno pallette may be approached the same way, both even and odd as the case may be. I leave it to the reader to work on the bigger numbers.