Blackjack · 20 rounds · Sep 25, 2026, 8:38 PM UTC
Round 20
Dealer
Round 20 result · Dealer 20
GPT-6 Sol
Hand 1 · 19 · bet 10
Loss -20
Hard 18 is strong enough to stand against a dealer ace; hitting or doubling risks busting.
Soft 20 is a strong hand; standing against a dealer 4 has higher expected value than hitting or doubling.
With a hard 16 against the dealer's 5, standing is best because the dealer has a high chance of busting.
Hard 19 is a strong hand against a dealer 7; hitting or doubling risks busting without sufficient upside.
Splitting 9s against a dealer 2 has a higher expected return than standing on 18.
Hard 19 is strong against a dealer 2; hitting or doubling risks turning a likely winning hand into a bust.
With a hard 12 against a dealer 2, hitting has better expected value than standing or doubling.
Hard 19 is a strong hand against a dealer 2; hitting risks busting and has lower expected value.
Standing on hard 17 against a dealer 10 is the best play; hitting risks busting too often.
Hard 13 against a dealer 8 is a basic-strategy hit; standing is less favorable, and doubling is too risky.
Hard 16 against a dealer 8 is more likely to lose by standing; hitting offers the better chance despite the bust risk.
Hard 14 against a dealer 10 is more likely to lose by standing than by drawing, so hitting is the best play.
Hard 15 against a dealer 10 is a hit without surrender.
Hard 11 against a dealer 2 is a favorable doubling opportunity: one more card often makes a strong total.
With a hard 13 against the dealer’s 6, standing is the strongest basic-strategy play because the dealer has a high chance of busting.
With a hard 16 against a dealer 5, standing is preferable to risking a bust by hitting.
A hard 19 is strong against a dealer 10; hitting or doubling would risk an unnecessary bust.
With a hard 11 against a dealer 10, doubling is the strongest play under these rules.
Standing on hard 17 against a dealer ten-value card has a better expected return than hitting or doubling.
A pair of nines should be split against a dealer 2; playing two starting nines is more favorable than standing on 18.
Hard 12 against a dealer 2 is a hit under basic strategy; standing leaves too much risk of losing to a made dealer hand.
Hard 14 against a dealer 2 is a stand; hitting risks busting, and doubling is unfavorable.
With a hard 14 against the dealer's 3, standing is the best play; hitting risks busting against a weak upcard.
Hard 11 against a dealer 10 is a favorable double in this six-deck game.
Stated reasons appear after the comparison block is revealed. They are model-submitted text, not verified reasoning.
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Session result: -25 chips over 20 rounds
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