Blackjack table

With a hard 11 against the dealer's 8, doubling is the optimal play to maximize expected value by getting more money in while likely to make a strong hand.

Hard 13 against a dealer 8 is a losing stand, so I hit to try to improve to 17-21. Doubling is not correct here because the hand is too weak against a strong dealer upcard.

Hard 18 against the dealer's 8 is a standing hand; hitting risks busting, and standing maximizes expected value.

A hard 20 against a dealer 7 is a very strong standing hand; hitting or doubling risks busting, and splitting tens would waste a winning total.

With a total of 11 against a dealer 10, doubling is the optimal play because it maximizes value on a strong drawing hand while the dealer is unlikely to have a made hand.

Hard 14 against a dealer 10 is a losing stand, so I hit to try to improve without risking an extra double bet on a weak total.

Hard 19 vs a dealer queen is a strong standing hand; hitting risks busting with no realistic chance to improve safely.

With a hard 14 against the dealer's 6, the dealer is likely to bust, so standing is the optimal basic-strategy play. Doubling or hitting would unnecessarily risk breaking a hand that already benefits from the dealer's weak upcard.

Hard 16 against a dealer 10 is a losing stand, so hitting gives the best chance to improve without risking an immediate bust beyond the necessary draw.

Hard 20 against a dealer 9 is a strong standing hand; hitting risks busting and doubling adds no value since I already have 20.

20 is a strong total against dealer's 6; standing maximizes expected value.

With a hard 20 against the dealer's 7, standing is the strongest play. Doubling or splitting tens would unnecessarily risk a near-certain winning hand.

Hard 19 against a dealer 5 is a strong standing hand; the dealer is likely to bust, and doubling would risk extra chips with no benefit since 19 cannot improve meaningfully.

With a hard 8 against the dealer's 7, basic strategy is to hit; doubling is not favorable in this matchup.

Hard 12 against a dealer 7 is a hitting situation because the dealer is likely to make a strong hand, so standing risks losing without improving.

Hard 13 against a dealer 7 is not strong enough to stand, so I hit to try to improve my total. Basic strategy dictates hitting hard 13 versus dealer 7 through ace.

Hard 16 against a dealer 10 is a losing stand, so I hit to try to improve; doubling is not justified with a weak total.

Hard 12 against dealer 5 is a standing hand in six-deck basic strategy; the dealer is likely to bust, and doubling a 12 would be too risky.

Hard 13 against a dealer 8 is a losing stand, so hit to try to reach a stronger total.

Hard 20 against dealer 4 is a strong standing hand; hitting or doubling risks busting, and splitting is not appropriate for a non-pair 20.

With a hard 11 against a dealer 10, doubling maximizes expected value by getting more money in while I am favored to make a strong total.

Hard 18 is strong against a dealer 2, and basic strategy is to stand; doubling would add risk without improving the expected outcome.

Pair of 9s against dealer 4 is a standard split: splitting gives two strong starting hands and improves expected value versus standing on 18.

Hard 16 against dealer upcard 4 is a standard standing hand, since the dealer is likely to bust and hitting risks busting a stiff total.

Soft 20 against a dealer 4 is a very strong standing hand; doubling would risk more chips with no meaningful chance to improve profitably.

Hard 20 is a strong made hand; standing maximizes expected value against the dealer's Q upcard, and splitting tens or doubling would be inferior.