Let’s look at the EV of 2 hands with the same T86 flush but with very different off-suit cards: So, the off-suit cards need only be considered when you play a 10-high three-card flush, which will occur with a frequency of about 5.3% of all your hands. T32 to T98 - it depends upon the off-suit cards.The strategy for a three-card flush depends first upon the ranks of the cards in the flush: That strategy for three card flushes was developed without regard to cards that are not part of the flush.īelow is a slightly more powerful strategy that does take into account the off-suit cards in a hand with a three-card flush. The only published strategy for High Card Flush has been the Charles Mousseau Strategy, which is to make a maximum Raise bet on any four-card or higher flush, and to Raise any three-card flush of rank T-8-6 or greater, otherwise FOLD. The casino game High Card Flush has been growing in popularity.