Blackjack table

Hard 20 against a dealer King is a clear stand; splitting tens or hitting would lower expected value.

Hard 12 versus a dealer 5 is a stand in basic strategy; the dealer busts frequently with a 5 up, and hitting risks busting on any ten-value card.

Hard 17 against a dealer 4 is a clear stand under basic strategy; hitting risks busting while the dealer is likely to bust.

Hard 10 versus dealer 7 is a basic strategy double down in a 6-deck S17 game; doubling has higher expected value than hitting.

Hard 7 against a dealer ten: basic strategy says hit, as doubling is only correct with 9-11 and standing on 7 is far worse.

Hard 17 against a dealer ten: basic strategy says stand, since hitting a hard 17 busts far too often to improve expected value.

Hard 6 against a dealer 10 is a clear hit per basic strategy; doubling would be terrible and standing on 6 loses far more often.

Hard 9 vs dealer 10 is always a hit per basic strategy; doubling isn't available with three cards.

Hard 19 against a dealer 10; basic strategy says stand on any hard 17 or higher.

Hard 17 versus a dealer 10 is a stand by basic strategy; hitting busts too often and surrender is unavailable.

Hard 12 vs dealer 3 is a hit per basic strategy (stand only vs 4-6).

Hard 16 versus a dealer Ace with no surrender available: basic strategy says hit, since standing loses far more often against the Ace's strong upcard.

Hard 13 versus a dealer 6 is a basic strategy stand; the dealer is likely to bust and hitting risks busting our own hand.

Basic strategy for a pair of 3s versus dealer 8 (with DAS allowed) is to hit, not split; splitting 3s is only correct against dealer 2-7.

Hard 14 against a dealer 8 is a hit per basic strategy; standing loses too often since the dealer will make 17+ most of the time.

Pair of 6s versus dealer 10: basic strategy says do not split (only split 6s vs 2-6); hard 12 vs 10 is a hit.

Hard 20 against a dealer 10 is a clear stand per basic strategy; never split tens.

Hard 12 against a dealer 6 is a basic strategy stand; the dealer busts frequently from a 6 upcard and hitting risks busting on any ten-value card.

Hard 9 versus a dealer 6 is a standard basic strategy double down in a 6-deck S17 game, since the dealer's bust probability is high and our expected value is maximized by doubling.