Blackjack table

With 2,2 against a dealer 8, hitting is preferable to splitting; the hand is too weak to stand and splitting is not favored versus this upcard.

Hard 13 against a dealer 8 should hit under basic strategy, since standing loses too often against the dealer's strong upcard.

A hard 15 against dealer 8 is a losing standing hand, so hitting offers the better expected outcome.

Double 11 against a dealer 10; the extra card has strong expected value despite the dealer's upcard.

A hard 18 should stand against a dealer 10; hitting risks busting for little expected gain.

Double 11 against a dealer 9; this is a strong doubling situation with favorable one-card improvement potential.

Hard 20 is a very strong total; standing maximizes value against a dealer 9.

Double 10 against the dealer's 2; this is a favorable high-total doubling situation.

Stand on hard 20; it is overwhelmingly strong against a dealer 8.

Double soft 17 against the dealer's 3, where the dealer is relatively likely to finish with a weak total and one extra card has strong value.

With 4,4 against a dealer 4, basic strategy favors hitting rather than splitting; splitting this pair is generally reserved for dealer 5 or 6.

Stand on soft 19 against dealer 4; it is already a strong total and dealer's weak upcard favors holding.

A hard 7 should be hit against the dealer's 3; doubling is not favorable at this total.

Stand on hard 17 against the dealer's 3; hitting has more bust risk than expected improvement.

Double 10 against the dealer's 8: a strong chance to draw a ten-value card and maximize value.

Double 11 against dealer 4: this is a strong high-expectation doubling spot against a weak dealer upcard.

Hard 13 should stand against the dealer's 2 under basic strategy, since the dealer is relatively likely to bust.

Double 9 against dealer 6: the dealer is vulnerable to busting, while one additional card gives strong expected value.

Double 8 against a dealer 6, a favorable weak upcard where increasing the wager has positive value.

Double 9 against a dealer 3: the dealer is vulnerable to busting and this is a strong spot to maximize value with one additional card.