The strategy of play in Pai Gow Poker is the following:
No combination, better card shall be left on lower hand, the following two - up.
1 pair: the pair shall be left on lower hand, 2 better of the remaining - up.
2 pairs
Do not split, if you have score sum of 9 and less having King or Ace;
Do not split, if you have score sum of 15 and less having Ace;
Exception: split 7s and deuces having King or better;
Exception: split Kings and deuces having Ace;
Exception: split Jacks and 4s having Ace;
Exception: Do not split 7s and 8s (9s) having Ace;
Where scores are in compliance with the card nominal (2 for deuces, 11 for Jacks, 12 for Queen, 13 for King, 14 for Ace, namely Jacks and 4s give the score sum of 4+11=15).
3 pairs: better pair - on top.
Trey: trey shall be left below, 2 better cards - up, excluding 3 Aces; 2 Aces below, 1 Ace - up.
2 treys: of better trey pair - up.
Straights and Flushes: leave Straights and Flushes, if there is no double pair, otherwise split by the rule of two pairs.
Full House: split on trey and deuce (if there is 2 pairs or 2 treys - put up the better pair).
4 of a kind:
4 of a kind of deuces to 6s - shall not be split;
4 of a kind of 7s to 10s - shall not be split, if there is no King or better;
4 of a kind of Jack to King - shall not be split, if there is no Ace or better;