Core Good Thirteen tips
- Count how many of each complement rank remain visible — if you have three Aces and no Queens, those Aces are locked until a Queen appears.
- Remove Kings early when possible: they cost only one slot and free space for fresh stock cards.
- Avoid pairing high-value cards with their complements if a different match would open up more flexibility.
- When the stock runs low, map out which pairs are still achievable before committing each move.
- Sequences of two or three guaranteed pairs can often be chained — look for them before acting on isolated matches.