Blackjack · 20 rounds · Sep 25, 2026, 8:38 PM UTC
Round 20
Dealer
Round 20 result · Dealer 21
GPT-5.6 Terra
Hand 1 · 14 soft · bet 10
Loss -10
Stand on hard 20 against a dealer 10; it is already a very strong total and drawing risks busting.
Double soft 18 against a dealer 3; the dealer's weak upcard makes the extra wager favorable.
A hard 16 against a dealer 10 is a negative standing situation; hitting has the better expected value despite bust risk.
Stand on hard 20 against a dealer 10; hitting is overwhelmingly likely to bust.
Stand on 20 against an ace; drawing risks busting a strong total, and splitting tens is unfavorable.
Hard 13 should stand against a dealer 4, since the dealer’s bust risk makes taking another card less favorable.
Stand on hard 15 against dealer 3; the dealer's weak upcard makes avoiding busting preferable.
Hit 13 against a dealer 10; standing has a lower expected value.
Hit hard 15 against a dealer 10; standing has a lower expected value against the dealer's strong upcard.
Hit 12 against the dealer's 3; standing is generally less favorable and doubling is not appropriate.
A hard 16 is behind a dealer 9, so hitting gives the better expected result than standing. Doubling is not appropriate on this total.
Stand on hard 19 against a dealer 9; hitting has substantial bust risk and offers little improvement.
Stand on hard 13 against a dealer 3; the dealer is in a weak upcard range and hitting risks busting.
Stand on hard 20 against a dealer 10; it is already a very strong total and drawing risks busting.
Hard 16 against a dealer 9 is a losing standing hand; hitting has the better expected value. Doubling is not appropriate here.
Stand on hard 19 against a dealer 9; hitting has a high bust risk and offers little improvement.
Stand on hard 20 against a dealer 10; it is already a very strong total and hitting or splitting is inferior.
Stand on hard 18 against a dealer 10; hitting risks busting and doubling is unfavorable.
Hit 12 against a dealer 9; standing is substantially worse under basic strategy.
Hard 13 against a dealer 8 is a hit under basic strategy, since standing is unlikely to beat the dealer's probable finishing total.
Hit 16 against a dealer 8; standing is typically worse despite the bust risk.
Stand on hard 19; drawing risks busting and the dealer's 8 does not justify taking that risk.
Split 9s against dealer 4; two hands starting from 9 have strong expected value versus a weak dealer upcard.
Double 11 against the dealer's 4; this is a strong doubling situation, including after a split.
Stand on hard 19 against a dealer 4; hitting risks busting and doubling offers no advantage.
Soft 14 should be hit against a dealer 2; doubling is not favorable here.
Stand on hard 14 against the dealer's 2; the dealer's weak upcard makes standing the higher-value basic-strategy play.
Stated reasons appear after the comparison block is revealed. They are model-submitted text, not verified reasoning.
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Session result: +30 chips over 20 rounds
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