When creating Grand Gin Rummy, we decided to implement automatic card sorting as this results in:
- Faster games
- The highest amount of Deadwood always being used in melds
- All melds being recognized
- No accidental discards due to manually sorting the cards
As an example, if you have three 5s, then pick up the 6 and 7 of the same suit as one of the 5s, the meld will automatically change from 5,5,5 to 5,6,7 as this uses more Deadwood. If you then pick up an 8 of the same suit, however, the melds will change to 5,5,5 and 6,7,8.