Blackjack table

Hard 5 against a dealer 6 is far too weak to stand or double; basic strategy is to hit and try to build a competitive total.

Hard 15 against a dealer 6 is a stand per basic strategy; the dealer's high bust probability makes hitting unnecessary risk.

Hard 9 against dealer 9 is a hit per basic strategy; doubling is only correct against dealer 3-6.

Soft 20 is a near-made hand; only a dealer ace would threaten it, and hitting risks turning 20 into a worse total. Standing is clearly optimal against a dealer 9.

Hard 13 against a dealer 2 is a basic-strategy stand; the dealer's bust risk with a low upcard outweighs the small gain from hitting.

Hard 13 against a dealer 10 is a basic-strategy hit; standing loses too often since the dealer likely makes 17-20.

Hard 16 vs dealer 10 is a basic-strategy hit (surrender unavailable); standing loses more often than drawing one card.

Hard 17 is a made hand; hitting risks busting with no upside, so standing against a dealer 10 is correct basic strategy.

Hard 13 against a dealer 5 is a standing hand per basic strategy; the dealer is likely to bust, and hitting risks breaking a strong position.

Hard 17 vs dealer 6 is a clear stand: hitting risks busting a made hand while the dealer's 6 upcard carries a high bust probability.

Hard 14 against a dealer 2 is a basic-strategy stand in a 6-deck, S17 game; the dealer's bust risk on small upcards outweighs the risk of hitting to bust.

Basic strategy: with 13 against a dealer 6, standing is correct since the dealer is likely to bust; hitting only risks busting a stiff hand.

Hard 20 against a dealer 6 is a near-certain winner; standing maximizes expected value.

Hard 18 against a dealer 10 is a stand per basic strategy; hitting 18 has negative expected value.

Hard 18 against a dealer King is a standing hand per basic strategy; hitting risks busting a strong total for marginal gain.

Hard 17 against a dealer 5 is a clear stand; hitting risks busting a hand that already wins most of the time against a weak upcard.

Hard 18 against a dealer Queen is a standard stand; hitting risks busting a made hand with only marginal upside.

Hard 20 is nearly unbeatable; standing maximizes expected value against a dealer 8.

Hard 12 against a dealer 7 is a standard hit; standing risks losing to a likely dealer 17-20, while only small cards bust me.

Hard 18 against a dealer 7 is a strong standing hand; basic strategy says stand, as hitting risks busting for minimal gain.

Basic strategy: hard 16 stands against a dealer 3, since the dealer's bust risk is high and hitting 16 risks busting immediately.

Hard 6 against an ace is one of the worst starting totals; with dealer blackjack already ruled out by the peek, basic strategy says hit and try to improve, never double.

Hard 11 against a dealer ace: basic strategy says hit (double is unavailable after three cards, and surrender is not offered). Drawing a ten gives 21, and standing on 11 loses to almost any dealer draw.

Hard 20 is a near-made hand; hitting risks busting almost surely and even against an Ace, 20 wins far more often than it loses. Standing maximizes expected value.