Blackjack table

Hard 12 against a dealer 10 is a basic strategy hit, since standing loses more often than the bust risk costs.

Hard 13 (Q+2+A counted as 1) against a dealer 10 is a basic strategy hit, since standing on 13 loses more often than hitting does.

The hand is a hard 18 (Q+2+A as 1+5) against a dealer 10. Standing is the correct basic strategy play, since hitting risks busting too often.

Hard 14 against a dealer 8 is a basic strategy hit, because standing is only correct against dealer 2-6 and doubling is not advisable on a hard 14.

Soft 14 (A,3) vs dealer 7 with S17: basic strategy is to hit, since doubling soft 14 is only recommended against dealer 5-6, and standing on 14 is weak against a 7.

Hard 15 against a dealer 10 with no surrender is best played by hitting; standing is slightly worse, and doubling is clearly wrong.

A hard 20 is a very strong total against a dealer Kd, and hitting risks busting on almost any card other than an ace. Standing is clearly correct.

Soft 17 (A,6) versus a dealer 7 is a double under basic strategy in a stand-on-soft-17 game with double allowed on any first two cards; it has higher expected value than hitting or standing.

A pair of 5s totals a hard 10, which should be doubled against a dealer 7 rather than split. Doubling gives the best expected value.

Soft 14 (A,3) against a dealer 4: basic strategy says double only with A,4 through A,7 against 4-6, but A,3 doubles only against 5-6 (with 4 it is a hit in S17 charts for A,2 and A,3). So hit is the standard play here.

Hard 12 against a dealer 4 is a stand in basic strategy, since the dealer is likely to bust and hitting risks busting first.

Hard 19 against a dealer 2 is a clear stand under basic strategy; hitting or doubling would risk busting a strong hand.

A hard 20 against a dealer 6 is a very strong hand, and basic strategy says to stand rather than split tens or double.

Hard 20 against a dealer 9 is a very strong hand. Standing is correct, and splitting tens is a worse play.

Hard 13 against a dealer Ace is a basic strategy hit, and doubling is not favorable. The dealer has already peeked and has no blackjack, so standing on 13 is too weak.

Hard 14 against a dealer 2 is a basic strategy stand, since the dealer busts often enough with a weak upcard and doubling on 14 is not favorable.

Hard 16 against a dealer 3 is a basic strategy stand, since the dealer busts often with a weak upcard and hitting risks busting too often.

Hard 11 against a dealer 8 is a standard double, since a ten-value card gives 21 and the doubled bet has positive expected value.

Hard 15 against a dealer 7 is a hit by basic strategy, since the dealer's likely total of 17 beats standing on 15. Surrender is not offered and doubling a hard 15 is incorrect.

Hard 16 (5, K, A counting the ace as 1) against a dealer 7 is a basic strategy hit, since standing loses more often than hitting does.

Hard 19 (5+K+A+3, ace counted as 1) against a dealer 7 is a clear stand; hitting risks busting for little gain.

Hard 13 against a dealer ten is a losing hand either way, but basic strategy says to hit; standing is the better play only against dealer 2-6. Doubling is not appropriate on a hard 13.

Pair of 3s against a dealer 10 is a hit in basic strategy. Splitting is only favorable against weaker upcards, and a total of 6 is too weak to double or stand on.

Hard 14 against a dealer King is a basic strategy hit, since standing loses more often than hitting in the long run.

A hard 20 against a dealer 6 is a very strong hand, and basic strategy says to stand rather than split tens or double.