Extremely liberal blackjack

I played a game tonight with rules i have never seen. First it is a 4 deck game. S17. Double any 2 or 3 Cards (yes that is right) but wait there's more. Late surrender and surrender after double down. Split aa 4 times. Double after split. And 3 or more card 21 is automatic win. Dealer doesn't have a chance to make 21 for a push. Blackjack is 3 to 2. Anyone have any strategy for surrender after Double down.

Was dealt a 3 4 then a 4. I doubled and pulled a 10 for 21. I was paid on both bets right away and my cards cleared. Then dealer made 21. Crazy. I am not making this up.

Only thing I can think of is they are pulling 10s from the deck. I played 3 shoes and the count was positive 5 to 10 and more the whole time for 3 shoes.

You were playing Spanish 21.

You were playing Spanish 21. You should double down rescue (surrender after doubling down) with any stiff hand vs 8, 9, T, or A as well as 17 v A

Ok makes sense now. I am researching the rules and strategy. At least my suspicion of removing 10s was correct. 1 won 24 units in an hour and got out of there. After some research this seems to be a more beatable game than blackjack. I need to get a book for all basic strategy variations and applying card counting.

Your answer was simple and huge help.

Thanks
Mexicojack

Check out "The Pros Guide to Spanish 21 and Pontoon" by Katrina Walker

I think this book is the authority on Spanish 21.

https://www.amazon.com/Pros-Guide-Spanish-Australian-Pontoon/dp/1435710657

Also if anyone could tell me the probability of the player busting while following basic strategy in Spanish 21 I would be greatly appreciative.