Blackjack table

Hard 12 against a dealer 10 is a hit in basic strategy, since the dealer's strong upcard makes standing worse.

Hard 18 against a dealer 10 is a stand under basic strategy, since hitting risks busting far more than it improves the hand.

A hard 20 against a dealer 9 is a strong favorite. Basic strategy says stand; splitting tens gives up expected value.

Basic strategy for hard 12 against a dealer 2 is to hit, since the dealer's bust chance is too low to justify standing.

Basic strategy says to stand on a hard 15 against a dealer 2, since the dealer has a real chance to bust and hitting risks busting.

Basic strategy for a hard 15 against a dealer 10 with no surrender available is to hit. Standing loses more often, since the dealer is likely to make 17 or better.

Hard 14 against a dealer 5 is a standard stand in basic strategy. The dealer has a high bust chance, so I avoid risking a bust myself.

Basic strategy says to stand on hard 13 against a dealer 6, since the dealer's bust chance is high and hitting risks busting first.

Hard 16 against a dealer 9 is a hit in basic strategy. Surrender isn't available, and standing loses more often than hitting.

Hard 19 against a dealer 3 is a clear stand under basic strategy, since hitting or doubling only risks busting a strong total.

Hard 12 against a dealer 8 is a hit under basic strategy, because the dealer is strong and standing on 12 loses more often.

Hard 17 against a dealer 8: basic strategy is to stand on any hard 17, since hitting risks busting on most cards.

Hard 15 against a dealer 8 is a hit under basic strategy, and surrender isn't available. Standing loses more often, since the dealer is strong with an 8 showing.

Basic strategy says to stand on hard 15 against a dealer 2, since hitting risks busting and the dealer has a fair chance of busting too.

Hard 16 against a dealer 10 with no surrender available: basic strategy is to hit, because standing on 16 loses more often against a strong upcard.

Basic strategy for a hard 11 against a dealer 9 in 6-deck S17 is to double. It has higher expected value than hitting.

A hard 6 against a dealer 10 cannot bust, so basic strategy is to hit, not double.

Hard 14 against a dealer 10 is a hit under basic strategy, since the dealer's strong upcard makes standing worse than taking the bust risk.

Hard 17 against a dealer 10: basic strategy is to stand, since hitting busts too often.

Hard 9 against a dealer 4 is a standard basic-strategy double in a 6-deck S17 game, since the dealer's weak upcard makes doubling more profitable than hitting.

Hard 17 against a dealer Ace is a stand under basic strategy (S17, no surrender), since hitting risks busting too often.

Basic strategy says to hit a hard 6 against a dealer 6. Doubling on a total this low is unprofitable, and standing on 6 is worse than drawing, since no single card can bust it.

Hard 16 against a dealer 6 is a basic-strategy stand, because the dealer is likely to bust. Hitting would risk busting myself.