Handle prior leaders in Basic battle explosions

docs/CURRENT_STATUS.md

@@ -20,12 +20,27 @@ open mode gates.
 Keep identified Basic-function gaps ahead of Advanced and wider interactions.
 Prototype labels and final acceptance gates remain.
 
+**Basic explosion and prior surviving leaders — 27 October. Prototyped / Partial.**
+The Advanced Arrakis prior-leader handling now also applies provisionally in
+Basic: a later actual explosion kills surviving discs from earlier battles in
+that territory. The Basic source composition and its uncertainty are recorded
+in the [contract](EFFECTIVE_BATTLE_WEAPONS.md#basic-explosion-and-prior-leaders--27-october-2026).
+
+A public Basic Emperor/Atreides/Guild game uses real entry and two successive
+battles to check prior and current leaders. An Advanced E3 supplement begins
+with earned Duke acquisition but explicitly stages the later battle position
+and cards: a set-aside Duke survives, while a Duke in the current plan dies.
+Kwisatz's prior location remains unresolved; browser and deployed play are not
+certified.
+Eleven selected files pass 173/173 and type/lint checks pass. No build, browser,
+mobile or deployed verification was performed for this focused rules change.
+
 **Advanced explosion and prior surviving leaders — 27 October. Prototyped / Partial.**
 On Arrakis, an actual Lasgun–Shield explosion now also kills still-present
 living leader discs left by earlier battles in that territory, without repeating
 current leader deaths or awarding bounty. Traitor precedence and captured /
-concealed exclusions remain. Basic, Homeworld, shared Duke, Kwisatz and special
-custody interpretations are separate. [Source and scope](EFFECTIVE_BATTLE_WEAPONS.md#earlier-leaders-in-an-advanced-explosion--27-october-2026).
+concealed exclusions remain. The later Basic interpretation is recorded above;
+Homeworld, shared Duke, Kwisatz and special custody remain separate. [Source and scope](EFFECTIVE_BATTLE_WEAPONS.md#earlier-leaders-in-an-advanced-explosion--27-october-2026).
 
 An original Advanced Emperor/Atreides/Guild setup reaches two real battles in
 Imperial Basin: both surviving discs from the first battle die in the second

docs/EFFECTIVE_BATTLE_WEAPONS.md

@@ -1,5 +1,34 @@
 # Physical cards and effective battle weapons
 
+## Basic explosion and prior leaders — 27 October 2026
+
+**Prototyped / Partial.** Under the standing selected-interpretation authority,
+apply the same prior-leader Arrakis explosion handling to Basic. The [GF9 base
+rulebook, p11](https://www.gf9games.com/dunegame/wp-content/uploads/Dune-Rulebook.pdf)
+places surviving leaders in their territory until battles finish. A
+[separately indexed transcription](https://boardgamegeek.com/thread/2542307/lasgun-shield-explosion-do-leaders-who-previously)
+attributes destruction of all leaders in the battle territory to the 2019
+physical Lasgun card, but its actual face was not independently inspected.
+This Basic composition is provisional and is not an official clarification.
+Current and earlier leaders die once; a successful Traitor prevents the explosion
+and no leader bounty is awarded. Existing custody exclusions remain.
+
+The supplied Advanced source physical30/printed28 returns a surviving
+Ambassador Duke next to the board after his battle, so his `usedAt` stamp alone
+does not locate that shared disc in a later explosion. The Advanced Kwisatz
+`usedAt` marker establishes a per-turn territory limit, but no retrieved primary
+source establishes where the separate marker stays after its battle. Its
+current-plan explosion behavior remains; a later explosion is not inferred from
+the stamp. Homeworld and exceptional custody boundaries remain open.
+
+A native public Basic game uses actual entry, two battles and both previous
+surviving discs; its unopened card/Spice order and scalar lotteries are selected.
+The Duke supplement earns his original acquisition but explicitly stages later
+battle state and conserved cards. These checks do not establish broad custody,
+full-mode or deployed acceptance.
+Eleven related files pass 173/173 with type checking and lint; the first
+verification attempt caught an unused import before the full passing rerun.
+
 ## Earlier leaders in an Advanced explosion — 27 October 2026
 
 **Prototyped / Partial.** The user-authorized revised rulebook physical p11 /
@@ -13,9 +42,9 @@ discs are excluded because their earlier stamp alone does not establish current
 physical presence. No bounty is added. Actual Traitor outcomes retain precedence
 and do not explode. Existing dead-leader Skill cleanup runs normally.
 
-The separate shared Duke and Kwisatz marker, Homeworld explosions, Basic source
-cutover and exceptional custody interactions remain outside this slice; this
-does not certify complete modes or change their existing policy.
+The separate shared Duke and Kwisatz marker, Homeworld explosions, and
+exceptional custody interactions remain outside that slice; the later provisional
+Basic policy is recorded above. This does not certify complete modes.
 
 The focused native regression uses an original Advanced Emperor/Atreides/Guild
 setup, paid shipments and movement to earn two successive Imperial Basin battles.

docs/IMPLEMENTATION_STATUS.md

@@ -1,5 +1,24 @@
 # Dune implementation status
 
+## 27 October 2026 — Basic explosion and prior leaders
+
+Extend the Advanced Arrakis prior-leader explosion to Basic under the standing
+selected-interpretation authority. Base GF9 rules leave surviving discs in their
+territory, and a separately indexed card transcription supports territory-wide
+leader deaths. The card face has not been independently confirmed; the Basic
+composition is provisional. Shared Duke, Kwisatz, Homeworld and exceptional
+custody remain separate. [Contract](EFFECTIVE_BATTLE_WEAPONS.md#basic-explosion-and-prior-leaders--27-october-2026).
+
+An original public Basic Emperor/Atreides/Guild sequence reaches two real
+battles after actual shipments and movement; only unopened initial cards and
+Spice positions plus scalar lotteries are selected. A separate Advanced E3
+supplement uses an earned Duke acquisition, then explicitly stages conserved
+cards and later battle state to check the set-aside and current-plan cases. No
+browser or deployment result is claimed.
+Eleven focused files pass 173/173 and types/lint pass. The private proof is
+`20261027-basic-explosion-leaders-proof-v2/`; the first attempt stopped at an
+unused test import, which was removed before the complete second run.
+
 ## 27 October 2026 — Advanced explosion and prior leaders
 
 Use the user-authorized Advanced rulebook physical11/printed9 to include living

docs/RULE_DECISIONS.md

@@ -1,5 +1,16 @@
 # Rule decision index
 
+## Basic explosion and prior leaders — 27 October 2026
+
+Provisionally extend the existing Advanced Arrakis casualty handling to Basic.
+The [publisher base rulebook, p11](https://www.gf9games.com/dunegame/wp-content/uploads/Dune-Rulebook.pdf)
+keeps surviving leaders in their battle territory; a separately indexed
+transcription attributes territory-wide leader destruction to the physical
+Lasgun card. The latter has not been independently confirmed from the card face,
+so this composition is an explicit interpretation, not a publisher ruling.
+Captured and concealed leaders, shared Duke, Homeworlds and Kwisatz retain their
+separate boundaries. [Source and scope](EFFECTIVE_BATTLE_WEAPONS.md#basic-explosion-and-prior-leaders--27-october-2026).
+
 ## Earlier leaders in an Advanced Arrakis explosion — 27 October 2026
 
 Apply the supplied Advanced rulebook physical11/printed9: surviving leaders
@@ -7,8 +18,8 @@ remain in their battle territory and suffer a subsequent territory-wide
 Lasgun–Shield explosion. An actual Arrakis explosion kills each still-present
 living prior-used roster disc once; Traitors retain precedence and no bounty is
 added. Earlier stamps on captured or concealed discs do not prove present
-location. Basic, Homeworld, shared Duke, Kwisatz and exceptional custody remain
-separate. [Source and scope](EFFECTIVE_BATTLE_WEAPONS.md#earlier-leaders-in-an-advanced-explosion--27-october-2026).
+location. Homeworld, shared Duke, Kwisatz and exceptional custody remain
+separate; the later Basic interpretation is recorded above. [Source and scope](EFFECTIVE_BATTLE_WEAPONS.md#earlier-leaders-in-an-advanced-explosion--27-october-2026).
 
 ## Distrans before Richese special bidding — 27 October 2026