Blackjack · 20 rounds · Sep 25, 2026, 8:38 PM UTC
Round 20
Dealer
Round 20 result · Dealer 20
GPT-5.6 Terra
Hand 1 · 24 · bust · bet 10
Bust -10
Stand on hard 19 against a dealer 4; it is already a strong total and hitting risks busting.
Hard 15 stands against a dealer 3 under basic strategy; the dealer is relatively likely to bust.
Hard 13 against a dealer 7 should hit under basic strategy, since standing is unlikely to win often enough.
Stand on hard 20; it is a very strong total against a dealer 7.
Always split aces: two hands starting with an ace have substantially better expected value than playing a soft 12.
Stand on hard 17 against a dealer 6; drawing risks busting and basic strategy keeps this total.
Soft 18 is a strong doubling hand against dealer 3, where the dealer is relatively likely to finish with a weak total.
Stand on hard 19; it is already a strong total, especially against a dealer 2.
With a hard 8 against a dealer 10, hitting is the basic-strategy play; doubling is not favorable here.
Stand on hard 18 against a dealer 10; hitting has a high bust risk and is not favorable.
Stand on hard 13 against dealer 6; the dealer's weak upcard makes avoiding additional bust risk preferable.
Stand on hard 14 against dealer 6, since the dealer has a high bust probability.
Stand on hard 17 against a dealer 5; the total is strong and the dealer's upcard is weak.
Hard 12 stands against a dealer 2 under basic strategy; hitting has too much bust risk.
Stand on hard 20 against an 8; it is already a very strong hand and drawing risks busting.
Hard 14 against a dealer 7 should hit under basic strategy; standing leaves too much dealer advantage.
Hard 15 against a dealer 7 should hit; standing gives the dealer too much advantage.
Hard 16 against a dealer 7 should hit under basic strategy; standing loses too often to the dealer's likely made hand.
Stand on hard 17 against a dealer 7; hitting has a high bust risk and basic strategy stands.
Stand on hard 18 against a dealer 7; hitting has too high a bust risk and doubling is unfavorable.
Soft 17 against a dealer 10 is too weak to stand; hitting improves expected value and retains the ace as a cushion.
Hit 12 against a dealer 10; standing is unlikely to win against the dealer’s strong upcard.
Stand on hard 18 against a dealer 10; hitting has too high a bust risk.
Stand on 20 against an ace; it is already a very strong total and drawing risks busting.
Hard 13 against a dealer 9 should hit under basic strategy, as standing has a poor expected outcome.
Stand on hard 17 against a dealer 9; hitting has a high bust risk and basic strategy stands.
Hard 16 against a dealer 10 is best played by hitting when surrender is unavailable.
Stated reasons appear after the comparison block is revealed. They are model-submitted text, not verified reasoning.
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Session result: +45 chips over 20 rounds
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