Support agreed extended turns in Basic and Advanced

docs/ADVANCED_PREVIEW.md

@@ -36,24 +36,30 @@ their stronghold counts and awards the higher count before checking a Bene
 Gesserit prediction. Equal highest counts provisionally share the win; a set of
 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.
+existing shared-winner treatment. Basic keeps its shared-win ranking.
 
-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 publisher FAQ for Basic and the authorized revised rules for Advanced also
+permit qualifying players or alliances to agree to play another full turn and
+optionally raise the stronghold target. The provisional agreement is offered
+when at least two distinct sides qualify in Basic, or when equal highest solo
+qualifiers or other distinct sides qualify in Advanced. 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. Voter scope, 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.
+in which case the next turn begins. The final turn defaults to ten; an agreement
+at the current final turn provisionally extends it by one, including a turn-ten
+agreement. The Fremen and Guild final-victory checks move to the agreed final
+turn under this interpretation, even though the supplied Fremen sheet names the
+end of turn ten. Repeated extensions can move the final turn further. Broader
+special-victory cases and full natural extended-turn verification remain open.
 [Source and interpretation](RULE_DECISIONS.md#advanced-simultaneous-solo-stronghold-victories--27-october-2026).
 
 ## Admission and saved behavior

docs/CURRENT_STATUS.md

@@ -20,13 +20,22 @@ open mode gates.
 Keep identified Basic-function gaps ahead of Advanced and wider interactions.
 Prototype labels and final acceptance gates remain.
 
+**Agreed extra turns and Basic simultaneous victory — 27 October. Prototyped /
+Partial.** The public continuation now covers Basic qualifiers and tied
+Advanced solos, with a saved final-turn marker for agreements at turn ten and
+beyond. The affected 11-file union passes 121 cases and the production build
+passes. A controlled turn-ten position continued through native turn-eleven
+actions to Mentat without a phase jump; it did not exercise a battle. Final-turn
+Fremen timing is provisional, and broader combinations remain open.
+
 **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).
+minimal bots are connected. The earlier eight-file affected union passed 104
+cases and the production build passed. The follow-up above extends turn ten and
+equal-solo choices; 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

docs/IMPLEMENTATION_STATUS.md

@@ -1,5 +1,16 @@
 # Dune implementation status
 
+## 27 October 2026 — Basic agreements and extended victory calendar
+
+The publisher FAQ agreement now applies to multiple qualifying Basic sides,
+and equal highest Advanced solos can also agree. A saved final-turn marker
+permits an agreed turn eleven and subsequent extensions; the shifted Fremen
+endgame check is provisional. The affected 11-file union passes 121 cases and
+the production build passes. A controlled turn-ten source continued through
+native turn-eleven actions to Mentat; no battle occurred in that smoke. Broader
+combinations and deployed acceptance remain open.
+[Scope](ADVANCED_PREVIEW.md#simultaneous-victories).
+
 ## 27 October 2026 — Advanced simultaneous-victory continuation
 
 Before turn ten, multiple qualifying sides including an alliance may

docs/RULE_DECISIONS.md

@@ -9,28 +9,41 @@ counts before applying Bene Gesserit prediction. Equal counts provisionally
 share the win. The existing three-Tech-token stronghold equivalent is counted
 as one in this comparison; this composition is provisional. Competition with
 a qualifying alliance or the separate Ecaz Homeworld victory retains the
-existing shared-winner treatment. Basic and recorded winners retain their
-existing behavior.
+existing shared-winner treatment. Basic keeps its shared-win ranking, and
+recorded winners retain their existing result.
 
-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.
+The [GF9 November 2020 FAQ, printed p. 1](https://www.gf9games.com/dune/wp-content/uploads/2020/11/Dune-FAQ-Nov-2020.pdf#page=1)
+permits qualifying players or alliances to agree to play another full turn and
+optionally raise the required stronghold count. The supplied Advanced revision,
+physical p. 14 (printed p. 12), contains the same option. In the provisional
+online implementation, Basic opens a public agreement when at least two
+distinct sides qualify; Advanced first ranks unequal unallied qualifiers as
+above, and offers an agreement to equal highest solos or other qualifying
+distinct sides. 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 voter scope, 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).
+resumes, or the completed CHOAM end-of-Mentat continuation advances once. Older
+games without a saved `victoryFinalTurn` retain turn ten as their final turn. A
+unanimous agreement on that final turn provisionally moves it one turn later; a
+further agreement may move it again. An earlier agreement leaves the existing
+final turn unchanged. For this online composition, the Fremen and Guild final
+victory checks move to the agreed final turn. That is provisional: the supplied
+Fremen sheet, physical p. 32 (printed p. 29), names the end of turn ten, while
+the Guild sheet, physical p. 37 (printed p. 34), refers to the end of play.
+Neither source supplies a worked example reconciling that wording with an
+agreed extra turn. Broader special-victory composition and full natural
+extended-turn verification remain unfinished. This does not certify complete
+victory rules or release acceptance.
+[Preview](ADVANCED_PREVIEW.md#simultaneous-victories).
 
 ## Juice of Sapho and an already-started Advanced movement turn — 27 October 2026