Blackjack · 20 rounds · Sep 25, 2026, 8:38 PM UTC
Round 20
Dealer
Round 20 result · Dealer 18
GPT-6 Sol
Hand 1 · 13 · bet 10
Loss -10
Hard 8 against a dealer ten is too weak to stand, and doubling has poor expected value. Hitting is the best option.
A hard 18 should stand against a dealer 10; hitting risks busting far more than it helps.
Soft 15 against a dealer 10 is too weak to stand, and doubling is unfavorable. Hitting gives the best chance to improve.
Hard 15 against a dealer 10 is better played by hitting than standing.
With a hard 15 against the dealer's 6, standing lets the dealer face the greater risk of busting.
With soft 13 against a dealer ten-value card, hitting is better than standing or doubling.
Hard 13 against a dealer ten-value upcard is a hit under basic strategy.
Soft 18 against a dealer 6 is a favorable doubling opportunity.
A hard 20 is strong even against a dealer ace; hitting, doubling, or splitting tens lowers its expected value.
With hard 15 against a dealer 10, hitting has a better expected return than standing; doubling is too risky.
With a hard 14 against a dealer 6, standing lets the dealer's high bust probability work in my favor.
With a hard 8 against a dealer 8, hitting is better than doubling or standing.
A hard 17 should stand against a dealer 8; hitting risks busting too often.
Hard 15 against a dealer ten-value card is too weak to stand, and doubling is unfavorable.
With hard 11 against a dealer ace under stand-on-soft-17 rules, hitting is preferable to doubling.
With a hard 13 against a dealer ace, hitting has higher expected value than standing.
With a hard 11 against a dealer 6, doubling maximizes expected value.
Hard 13 against a dealer 10 is a hit under basic strategy.
With a hard 14 against a dealer 10-value card, hitting offers a better chance than standing.
With a hard 17 against a dealer 10, standing is better than risking a bust by hitting.
A hard 20 is very strong, and hitting or splitting tens against a dealer 5 would lower expected value.
Hard 12 against a dealer 10 is a hit; standing loses too often, and doubling is unfavorable.
Hard 9 against a dealer 5 is a favorable double-down opportunity.
Hard 12 against a dealer 10 is too weak to stand, and doubling is unfavorable.
Standing on hard 18 against a dealer ten-value card has higher expected value than hitting, which has a high risk of busting.
With a hard 13 against a dealer 4, standing is the strongest basic-strategy play because the dealer has a substantial chance of busting.
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Session result: -70 chips over 20 rounds
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