Hi folk's I wonder if my lotto peers can help me to understand these two wheels? I have seen 12,6,5,6=38 so many times I understood that if one had all 6 numbers in your selection you would have at least a 5 number prize and if luck favoured you all 6 i.e the jackpot. I have recently bought Iliya Bluskov's book on combinatorial systems (wheels) he too concludes 12,6,5,6=38 however in his book he says the % guarntee to achieve 12,6,5,6 is 0.22%.? When one puts the parameters 12,6,5,6 in the la jolla repository it says 132 blocks are required too achieve the 5 number prize, it also says it is a Steiner system.