He gave a practical strategy that yielded a 3.1% player edge. With six players at the table sharing full information about their hands (colluding), he stated that these players could each get a 7.3% edge over the house.
High Card Flush (HCF) is a relatively new game that distinguished itself by winning “Best Game” at the Cutting Edge Table Games Conference in 2012. Recently Stephen How demonstrated that HCF has a significant collusion issue (see this post at his blog, ).
