This list is copied from the previous page, and shows a list of rules that apply to our remaining 8 cards after we have used all of our ten-value cards to make 16 21's:

• No ten-value cards remain
• No aces remain
• At least one of the remaining cards must be a 2
• At least one of the remaining must be a 9
• The remaining 8 cards will total 44
• In order to make 2 more 21's, you will have to make exactly one more 3-card 21, and exactly one 4-card 21, and you'll be left with a single remaining 2

To the best of my knowledge, there are precisely 19 combinations of 8 remaining cards that satisfy all the above rules. However, I might have missed some possible card combinations; if you know of a card combination that satisfies all the above rules and is not listed in the table below, please email me.

The card combinations for the remaining 8 cards are as follows (note that in each case below I indicate one 3-card 21 and one 4-card 21 and that the remaining 8th card must be a 2. Also note that at least one of the other 7 cards must be a 9, which makes it a bit easier to list every possible combination):