Cacarulo came up with a better index list for the reKO count. I also developed a double deck version. After running a few hundred billion hands, I've "finalized" the definition. That is unless someone has some new ideas. Overall, reKO has 99.5%, give or take depending on circumstances, the power of KO Preferred. There was no cheating in the performance tests. KO Preferred is played as defined with optimal betting. Comparing a strategy to a crippled version of a standard strategy simply makes no sense. The indexes are the same for DD and six decks. All indexes are +2. For more info and performance data see: