
================ AUTOMATIC SHUFFLE ROBUSTNESS | SESSION 20260908_021956 ================
ENGINE VERSION: integrated-post-session-v3 | paired_replays_per_method 5000 | seed_base 202609050001
Captured-card reservoir: 72 cards
Comparable-action definition: same replay hand, branch, decision ordinal, player-rank state and dealer upcard in both independently consumed paths.
A | Observed-card permutation: shuffle only the captured session-card reservoir; no cards added.
  Frozen median 95.00 | Casual median 100.00 | Frozen mean 100.06 | Casual mean 98.88
  £200 reach Frozen 12.36% | Casual 6.18% | Mean exposure Frozen 214.91 | Casual 199.74 | Mean maxDD Frozen 59.97 | Casual 55.26
  30-hand completion Frozen 0 | Casual 0 | Both 0
  Mean paired final-bankroll difference Frozen-Casual (both completed): N/A
  Comparable action decisions total: 76605 | Different actions total: 2880 | Mean Comparable Action Differences: 0.5760
B | Full six-deck RNG: generate and uniformly shuffle a fresh 312-card six-deck shoe.
  Frozen median 80.00 | Casual median 92.50 | Frozen mean 99.52 | Casual mean 96.91
  £200 reach Frozen 30.12% | Casual 20.12% | Mean exposure Frozen 450.70 | Casual 413.83 | Mean maxDD Frozen 92.90 | Casual 83.79
  30-hand completion Frozen 3348 | Casual 3519 | Both 3150
  Mean paired final-bankroll difference Frozen-Casual (both completed): 7.58
  Comparable action decisions total: 137976 | Different actions total: 5740 | Mean Comparable Action Differences: 1.1480
C1 | Penetration 50%: captured reservoir; reshuffle only remaining cards between hands at 50%.
  Frozen median 95.00 | Casual median 100.00 | Frozen mean 99.52 | Casual mean 97.71
  £200 reach Frozen 11.92% | Casual 5.58% | Mean exposure Frozen 213.80 | Casual 199.01 | Mean maxDD Frozen 59.86 | Casual 55.58
  30-hand completion Frozen 0 | Casual 0 | Both 0
  Mean paired final-bankroll difference Frozen-Casual (both completed): N/A
  Comparable action decisions total: 76144 | Different actions total: 2862 | Mean Comparable Action Differences: 0.5724
C2 | Penetration 65%: captured reservoir; reshuffle only remaining cards between hands at 65%.
  Frozen median 95.00 | Casual median 100.00 | Frozen mean 98.69 | Casual mean 97.57
  £200 reach Frozen 11.70% | Casual 5.70% | Mean exposure Frozen 214.36 | Casual 199.33 | Mean maxDD Frozen 60.57 | Casual 55.99
  30-hand completion Frozen 0 | Casual 0 | Both 0
  Mean paired final-bankroll difference Frozen-Casual (both completed): N/A
  Comparable action decisions total: 76203 | Different actions total: 2947 | Mean Comparable Action Differences: 0.5894
C3 | Penetration 75%: captured reservoir; reshuffle only remaining cards between hands at 75%.
  Frozen median 95.00 | Casual median 100.00 | Frozen mean 98.36 | Casual mean 97.70
  £200 reach Frozen 11.70% | Casual 5.68% | Mean exposure Frozen 214.37 | Casual 199.31 | Mean maxDD Frozen 60.56 | Casual 55.69
  30-hand completion Frozen 0 | Casual 0 | Both 0
  Mean paired final-bankroll difference Frozen-Casual (both completed): N/A
  Comparable action decisions total: 76211 | Different actions total: 2874 | Mean Comparable Action Differences: 0.5748
C4 | Penetration 80%: captured reservoir; reshuffle only remaining cards between hands at 80%.
  Frozen median 95.00 | Casual median 100.00 | Frozen mean 99.41 | Casual mean 98.68
  £200 reach Frozen 11.74% | Casual 5.78% | Mean exposure Frozen 213.42 | Casual 198.89 | Mean maxDD Frozen 60.07 | Casual 55.25
  30-hand completion Frozen 0 | Casual 0 | Both 0
  Mean paired final-bankroll difference Frozen-Casual (both completed): N/A
  Comparable action decisions total: 76344 | Different actions total: 2857 | Mean Comparable Action Differences: 0.5714
D | Physical-style proxy: captured reservoir with deterministic riffle/strip/cut-style mixing.
  Frozen median 92.50 | Casual median 100.00 | Frozen mean 95.16 | Casual mean 95.44
  £200 reach Frozen 9.98% | Casual 5.16% | Mean exposure Frozen 212.20 | Casual 197.93 | Mean maxDD Frozen 61.77 | Casual 56.43
  30-hand completion Frozen 0 | Casual 0 | Both 0
  Mean paired final-bankroll difference Frozen-Casual (both completed): N/A
  Comparable action decisions total: 75786 | Different actions total: 2879 | Mean Comparable Action Differences: 0.5758
E | Automatic/continuous proxy: captured reservoir; after each complete hand, used cards return and the full reservoir is remixed.
  Frozen median 77.50 | Casual median 85.00 | Frozen mean 96.31 | Casual mean 94.84
  £200 reach Frozen 29.20% | Casual 20.98% | Mean exposure Frozen 444.70 | Casual 411.74 | Mean maxDD Frozen 93.03 | Casual 84.63
  30-hand completion Frozen 3285 | Casual 3435 | Both 3168
  Mean paired final-bankroll difference Frozen-Casual (both completed): 6.14
  Comparable action decisions total: 162908 | Different actions total: 6030 | Mean Comparable Action Differences: 1.2060
Method E boundary: after each COMPLETE hand, consumed cards return to the captured reservoir and the entire reservoir is remixed; no captured card is added, removed or substituted.
Method D boundary: declared mathematical riffle/strip/cut proxy; not a proprietary casino-shuffler reproduction.

================ PREAMBLE-START COUNTERFACTUAL | SESSION 20260908_021956 ================
PURPOSE: bounded context check only - replay the two established profiles from the first recorded preamble card before formal Hand 1. This is not a new formal session and does not alter Session 20260908_021956 metrics.
Preamble source: session_evidence\blackjack_preamble_20260908_020157.txt | preamble hands 13 | preamble cards 80 | observed preamble shuffles 1
FORMAL ENTRY CONTEXT: 80 recorded cards since the most recent observed shuffle/preamble start at formal Hand 1.
Captured chronology available to this check: 148 exact rank+suit cards across preamble + formal evidence.
Boundary: both replays start at research £100.00 on the first recorded preamble card, consume independently, preserve observed shuffle boundaries at their recorded source-hand positions, and never invent a card or inherit the observed player's settlement outcome.
Frozen from preamble start: hands 14 | final £2.50 | W/L/P 3/9/2 | cards consumed 82 | termination BANKROLL | SOURCE-COMPLETE
Casual from preamble start: hands 26 | final £25.00 | W/L/P 10/16/0 | cards consumed 148 | termination SOURCE_EXHAUSTED | NOT SOURCE-COMPLETE
Publication boundary: use these two values only as the declared preamble-start context check; do not infer +/- card-start alternatives or treat the preamble as part of formal Session 20260908_021956 W/L/P, exposure, bankroll score or ledger.
================ END PREAMBLE-START COUNTERFACTUAL | SESSION 20260908_021956 ================
SHUFFLE_ANALYSIS_STATUS | session 20260908_021956 | COMPLETE
================ END AUTOMATIC SHUFFLE ROBUSTNESS | SESSION 20260908_021956 ================
