Prototype unanimous Advanced victory continuation

docs/ADVANCED_PREVIEW.md

@@ -38,10 +38,23 @@ all three Tech Tokens counts as one additional stronghold in this comparison.
 Qualifying alliances and the separate Ecaz Homeworld victory retain their
 existing shared-winner treatment. Basic retains its existing behavior.
 
-The authorized revised rules also permit all qualifying players or alliances to
-agree to play another turn and optionally raise the stronghold target. That
-choice is not yet implemented in the preview, which currently ends in a shared
-win when applicable. [Source and interpretation](RULE_DECISIONS.md#advanced-simultaneous-solo-stronghold-victories--27-october-2026).
+The authorized revised rules also permit qualifying players or alliances to
+agree to play another turn and optionally raise the stronghold target. The
+provisional preview offers this on turns 1–9 when at least two distinct sides
+qualify and one is an alliance. Every member of those sides responds in storm
+order. The first may finish or propose another turn with a whole-number target
+increase from zero through 20; each later member accepts that exact proposal or
+finishes. These ordered controls and the input cap are online conventions.
+Finishing resolves the original result and any correct private prediction;
+unanimous acceptance continues without revealing that prediction.
+
+The increase adds to the ordinary solo and alliance stronghold targets, while
+independent Ecaz joint-occupation and Homeworld special-victory conditions stay
+separate under the provisional interpretation. The original Mentat phase
+continues unless CHOAM's completed end-of-Mentat opportunity was the source,
+in which case the next turn begins. Turn-ten extension, equal-solo-only
+agreements and broader special-victory cases remain unfinished.
+[Source and interpretation](RULE_DECISIONS.md#advanced-simultaneous-solo-stronghold-victories--27-october-2026).
 
 ## Admission and saved behavior
 

docs/CURRENT_STATUS.md

@@ -20,6 +20,14 @@ open mode gates.
 Keep identified Basic-function gaps ahead of Advanced and wider interactions.
 Prototype labels and final acceptance gates remain.
 
+**Advanced simultaneous-victory continuation — 27 October. Prototyped /
+Partial.** Qualifying sides including an alliance may unanimously agree to
+another turn and optionally increase ordinary stronghold targets, preserving
+the original Mentat or CHOAM continuation and hidden prediction. Controls and
+minimal bots are connected. The eight-file affected union passes 104 cases and
+the production build passes. Turn-10 extension, equal-solo-only and exceptional
+victory compositions remain open. [Scope](ADVANCED_PREVIEW.md#simultaneous-victories).
+
 **Advanced Revival order and competing winners — 27 October. Prototyped /
 Partial.** Sapho can provisionally pause a clean started Revival turn and resume
 it last with spent allowances and legacy order records preserved. Simultaneous

docs/IMPLEMENTATION_STATUS.md

@@ -1,5 +1,16 @@
 # Dune implementation status
 
+## 27 October 2026 — Advanced simultaneous-victory continuation
+
+Before turn ten, multiple qualifying sides including an alliance may
+provisionally agree to play another turn and optionally increase the ordinary
+stronghold targets. Each qualifying participant accepts the same proposal;
+finishing instead resolves the original victory and prediction. Original
+Mentat and CHOAM continuation are retained. The affected eight-file union
+passes 104 cases and the production build passes. Turn-ten extension,
+equal-solo-only choices and wider combinations remain open.
+[Scope](ADVANCED_PREVIEW.md#simultaneous-victories).
+
 ## 27 October 2026 — Advanced Revival and simultaneous victory
 
 A clean already-started Advanced Revival can provisionally pause through

docs/RULE_DECISIONS.md

@@ -12,11 +12,25 @@ a qualifying alliance or the separate Ecaz Homeworld victory retains the
 existing shared-winner treatment. Basic and recorded winners retain their
 existing behavior.
 
-The same revision permits all qualifying players or alliances to agree to play
-another turn and optionally raise the required stronghold count. This choice is
-not yet implemented; automatic shared victory remains the current preview
-behavior. Implementing the solo comparison does not complete Advanced victory
-or release acceptance. [Preview](ADVANCED_PREVIEW.md#simultaneous-victories).
+The same revision permits qualifying players or alliances to agree to play
+another turn and optionally raise the required stronghold count. In the
+provisional Advanced preview, a public agreement opens on turns 1–9 when at
+least two distinct sides qualify, including an alliance. Qualification is
+determined before a private Bene Gesserit prediction replaces an actual win.
+Every member of the qualifying sides votes in public storm order: the first
+may finish or propose continuation with an integer increase from zero through
+20, and each remaining member accepts that exact proposal or finishes. The
+20-point input cap and sequential proposal procedure are software conventions,
+not printed limits. A finish decision settles the original result, including
+prediction; unanimous acceptance retains play without applying that result.
+
+An agreed increase adds to the ordinary solo and alliance stronghold targets.
+It does not alter independent Ecaz joint-occupation or Homeworld special-victory
+conditions under this provisional composition. The original Mentat opportunity
+resumes, or the completed CHOAM end-of-Mentat continuation advances once.
+Turn-ten extension, equal-solo-only agreements and broader special-victory
+composition remain unfinished. This does not certify Advanced victory or
+release acceptance. [Preview](ADVANCED_PREVIEW.md#simultaneous-victories).
 
 ## Juice of Sapho and an already-started Advanced movement turn — 27 October 2026