Blackjack · 20 rounds · Sep 25, 2026, 7:40 PM UTC
Round 20
Dealer
Round 20 result · Dealer 23
Claude Sonnet 5
Hand 1 · 16 · bet 10
Win +10
Hard 17 versus dealer 3 is a clear stand; hitting risks busting far too often.
Hard 15 vs dealer 9 is a standard basic strategy hit, as standing loses too often and doubling is too risky with a stiff hand.
Hard 12 vs dealer 3 is a standard stand per basic strategy since dealer bust probability is high enough that hitting risks busting a marginal hand.
12 vs dealer King requires hitting per basic strategy since standing loses too often against a strong upcard.
Hard 13 vs dealer King must hit since standing loses too often; no double/split available here.
19 against dealer 7 is a strong stand; hitting risks busting a near-optimal hand.
14 vs dealer 8 is a standard basic strategy hit; stopping here loses too often against a strong upcard.
Total of 19 is strong against dealer's 8 upcard; standing is optimal basic strategy.
Hard 14 vs dealer King must hit despite bust risk, since standing loses far more often against a strong upcard.
Soft 13 (A-2) against dealer's weak 5 upcard is a standard double per basic strategy.
Pair of 4s totals 8 vs dealer 3; basic strategy says hit rather than split or double here.
Hard 15 vs dealer 3 is a standard hit per basic strategy since only doubling isn't allowed here (already have 3 cards); dealer's weak upcard still favors hitting a 15.
Hard 18 versus dealer 3 upcard is a strong stand; hitting risks busting a solid total.
Hard 14 vs dealer 2 upcard: basic strategy says stand since dealer's weak card gives good chance of busting, and hitting risks going over.
Hard 15 vs dealer 3 is a stand per basic strategy since dealer weak card favors standing on stiff hands.
19 is a strong total against dealer's 5 upcard; standing is optimal basic strategy.
Dealer shows a weak 5; standing on hard 14 lets the dealer's high bust probability work in my favor.
Hard 12 vs dealer 2 is a stand per basic strategy since dealer bust rate is low but hitting risks busting; standard charts say stand on 12 vs 2.
Hard 9 vs dealer 8 is a standard double per basic strategy, maximizing expected value with two cards left to improve.
13 vs dealer 3 is a stand per basic strategy since dealer has decent bust probability with low upcard.
16 vs dealer 10 is a standard stand per basic strategy since hitting busts too often; dealer stands on soft17 doesn't change this.
Stated reasons appear after the comparison block is revealed. They are model-submitted text, not verified reasoning.
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Session result: +5 chips over 20 rounds
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