Blackjack Trainer

6-deck shoe · dealer stands on soft 17 · blackjack pays 3:2
double any two cards · double after split · split to 4 hands
late surrender · insurance offered on dealer ace
cut card at 65–80% penetration · shoe only changes between rounds

Dealer

Show strategy hints after each move Hide hand totals (count them yourself) Occasionally quiz me on the totals Show card count (Hi-Lo)

Session stats

Basic strategy chart (S17, DAS, late surrender)

Surrender (first decision only, no split)

Hard 16 (not 8,8)	Surrender vs dealer 9, 10, ace
Hard 15	Surrender vs dealer 10

Insurance

Any hand

Decline — the math favors the house unless you're tracking the count

Hard totals

8 or less	Always hit
9	Double vs dealer 3–6, otherwise hit
10	Double vs dealer 2–9, otherwise hit
11	Double vs dealer 2–10, hit vs ace
12	Stand vs dealer 4–6, otherwise hit
13–16	Stand vs dealer 2–6, otherwise hit
17+	Always stand

Soft totals (hand has an ace counted as 11)

A,2 / A,3	Double vs 5–6, otherwise hit
A,4 / A,5	Double vs 4–6, otherwise hit
A,6	Double vs 3–6, otherwise hit
A,7	Double vs 3–6; stand vs 2, 7, 8; hit vs 9, 10, ace
A,8	Double vs 6, otherwise stand
A,9 / A,10	Always stand

Pairs

A,A	Always split
10,10	Never split — stand
9,9	Split vs 2–6, 8, 9; stand vs 7, 10, ace
8,8	Always split
7,7	Split vs 2–7, otherwise hit
6,6	Split vs 2–6, otherwise hit
5,5	Never split — double vs 2–9, otherwise hit
4,4	Split vs 5–6 only, otherwise hit
2,2 / 3,3	Split vs 2–7, otherwise hit

Totals of 12–16 are the danger zone for busting, so stand once the dealer's upcard is weak (2–6, meaning they're likely to bust too) and hit when it's strong. Doubling targets hands where one good card makes you a big favorite. Splitting aces and 8s is near-automatic since 5 and 16 are both bad hands to keep as-is; splitting 10s or 5s is a mistake because it breaks up an already strong hand.