Blackjack table

Hard 5 against a dealer 7 is a clear hit; doubling would be incorrect since the hand is too weak to commit extra chips.

Soft 16 against a dealer 7 cannot bust on the next card, and standing on 16 would likely lose to any dealer made hand of 17 or better.

Soft 18 against a dealer 7 is a standing hand in multi-deck basic strategy, so I avoid risking a bust.

Hard 10 against a dealer Ace is a hitting situation in 6-deck S17; doubling would force a one-card stand on a likely weak total while the dealer's Ace is too strong.

With a hard 7 against the dealer's 6, doubling is the optimal basic-strategy play because the dealer is likely to bust and I can maximize value on a favorable situation.

Hard 18 against a dealer 2 is a strong standing hand; hitting risks busting and doubling is not justified with 18.

Hard 16 against a dealer 10 is a losing stand, so hitting gives the best chance to improve without busting too often. Doubling is not appropriate with 16.

Hard 12 against dealer 6 is a standing hand in basic strategy; the dealer is likely to bust, and doubling would add risk without improving the expected outcome.

Hard 13 against a dealer Ace is too weak to stand; hitting gives the best chance to improve without risking an unsupported double.

I have a hard 20, which is a very strong total. The dealer shows an ace, but standing gives the best chance to win or push without risking busting.

Soft 14 against a dealer 10 is too weak to stand, and doubling would risk extra chips on a hand that still needs improvement. Hit to try to make a stronger total.

Hard 13 against a dealer 10 is a losing stand, so I hit to try to improve to 17-21 without busting.

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

Hard 15 against a dealer 10 is a losing stand, so I hit to try to improve; doubling is not justified with a weak total against a strong upcard.

Hard 19 against a dealer 7 is a strong standing hand; hitting or doubling risks busting or wasting chips for no value.

Hard 12 against a dealer 2 is a hitting hand; standing risks losing to the dealer's likely made total, and doubling is not favorable with 12.

Hard 20 is a very strong hand; standing maximizes expected value against a dealer 7 upcard, and splitting tens or doubling would be -EV.

Hard 20 is strong; standing maximizes expected value against the dealer's queen upcard.

Hard 16 against a dealer 10 is a losing stand, so I hit to try to improve; doubling would risk extra chips on a weak total.

With a hard 11 against a dealer 4, doubling maximizes expected value by getting more money in while I am favored to make a strong total.

Hard 10 against a dealer 10 is a hitting hand; doubling would risk extra chips with only one card when the dealer is likely strong.

Total is 20, a strong hand. Standing is optimal against dealer's 10.

Hard 17 against a dealer 8 is a standing hand; hitting risks busting with no meaningful improvement, and the dealer must still make a hand from 8.

With double after split allowed, splitting 4s against a dealer 5 is the optimal play, creating two starting hands against the dealer's strongest bust card.

Pair of 4s against dealer 5 is a favorable split, especially with double after split allowed, so splitting maximizes expected value.

Hard 7 against a dealer 5 should be hit; standing gives up the chance to improve, and doubling is not favorable with such a low total.

Hard 17 against a dealer 5 is a standing hand; hitting risks busting when the dealer is likely to break.

Hard 12 against a dealer 5 is a strong standing spot because the dealer is likely to bust; hitting risks making a bad hand without improving enough to justify the risk.

Hard 9 against a dealer 5 is a strong double-down spot; doubling maximizes expected value with the dealer showing a weak upcard.