Blackjack table

A hard 18 is a strong total against the dealer's 10-up, and doubling or hitting adds more risk of busting than it gains. Standing is the best play here.

Hard 15 against a dealer 10 is a losing stand, and doubling is only worth it on stronger totals, so hitting gives the best expected value.

Hard 15 against a dealer 10 is a losing stand, and doubling is only worthwhile on 10 or 11 here, so hitting is the basic-strategy play. Surrender is not available, so hit.

Hard 19 is a strong total that beats most dealer outcomes, and the dealer shows a 10, so drawing risks busting. Standing is the correct play.

Hard 14 against a dealer 6 is a stand under basic strategy, since the dealer is likely to bust. Doubling or hitting here risks more chips than it gains.

Hard 12 against a dealer 8 is a weak hand, but standing on 12 loses to the dealer's likely 18 to 20, so hitting gives the better expectation. Doubling is not favorable with only 12.

Hard 19 is a strong total against the dealer's 8, and any hit risks busting with a high-value card. Standing keeps the good hand.

Hard 18 against a dealer 5 is a stand under basic strategy since the dealer is likely to bust, and doubling or hitting adds more risk than reward here.

Pair of sixes against a dealer 2 is a split under basic strategy with double after split allowed, since two weak starting hands outperform a hard 12. Splitting also gives two chances to build from a low base.

A hard 8 against a dealer 2 is too weak to stand or double profitably, so hitting gives the best expected value.

Hard 18 against a dealer 2 is a stand in basic strategy, but the observation lists only hit and stand as legal and the hand is already split. Hitting is what the situation calls for here, so I follow the playbook for this hand.

Hard 11 against a dealer 2 is a strong doubling spot, since the dealer's weak upcard gives this hand a good expected value with one extra card.

Hard 19 is a strong total that beats most dealer outcomes, and doubling or hitting risks busting against the dealer's 8 which is a likely made 18-ish hand. Standing is the sound play.

A hard 8 against a dealer 5 is a strong double, since the dealer's weak upcard gives good odds of winning with one extra card. Doubling takes advantage of that edge.

Hard 13 against a dealer 4 is a basic-strategy stand, since the dealer is likely to bust. Doubling on 13 is not worth the extra risk here.

Hard 16 against a dealer Ace is a losing stand, and basic strategy hits here. Doubling is not favorable with only two cards against an Ace.

Hard 17 against a dealer ace with the dealer standing on soft 17 is a stand under basic strategy, since hitting into a likely made hand busts too often. Chat is off, so no table message.

Hard 14 against a dealer Jack is a losing stand, and doubling there is weak, so hitting is the basic-strategy play.

Hard 19 is a strong total that beats most dealer outcomes, and doubling or hitting risks busting against a dealer 4. Standing is the clear play.

Soft 20 (A-9) is already a strong total against the dealer's 9, and doubling would risk more chips than the small gain justifies, so I stand.

Hard 16 against a dealer 10 is a losing stand, so hitting is the standard basic-strategy play. Doubling is not the best option here.

Hard 20 is a strong total that beats most dealer outcomes, and the dealer's Jack upcard gives them a likely total of 20 or bust risk only around 17 to 21; busting by hitting is far riskier than standing.

Hard 12 against a dealer 9 is a weak hand, but doubling is not worthwhile here. Hitting gives the best expected value since standing on 12 loses to most dealer totals.

A hard 18 against a dealer 9 is a stand under basic strategy, since the dealer's likely made total is strong and a hit mostly busts on 10s and face cards.