Connect owned Sandmaster ground pile selection

docs/RULE_DECISIONS.md

@@ -21,6 +21,7 @@ They supersede earlier software-absence claims only within their named scope.
 | Full-hand Nullentropy Box | Basic and Advanced permit an atomic retrieval/Box-disposal exchange with final hand within its actual limit; Box remains last/on top. Intermediate capacity is not adjudicated. | [Box runtime](NULLENTROPY_BOX_ENGINE_AUDIT.md) |
 | Kulon with Richese Ornithopter | Both modes coexist in Basic/Advanced. The fixed one-group card maximum remains three; Kulon extends each normal-range group. Explicitly provisional, not a publisher ruling. | [Movement policy](RICHESE_ORNITHOPTER_ENGINE_AUDIT.md#provisional-kulon-coexistence--9-october-2026) |
 | Multi-pile battle skills | In both modes, surviving Smuggler allocates the fixed unmodified-strength-capped collection among reveal-time positive piles; Sandmaster winner then selects one remaining pile for +3. Single-pile/all/none/void effects stay automatic. Owner sector selection is provisional, not a publisher allocation ruling. | [Smuggler](SMUGGLER_BATTLE.md#multi-pile-allocation-policy-and-pure-api--9-october-2026), [Sandmaster](LEADER_BATTLE_EFFECTS.md#source-contract) |
+| Multi-pile Sandmaster ground movement | The owner chooses one existing positive debit sector per entered territory, or declines its one-spice collection. Duplicate territory collection rejects. Worm/Ambassador destination and HMS multi-pile paths remain separate. Explicitly provisional, not a publisher allocation ruling. | [Ground-route policy](SANDMASTER_MOVEMENT.md#owned-ground-route-pile-selection--9-october-2026) |
 | Basic occupied Homeworld lifecycle | Current sole foreign garrison controls occupied income, Bidding effects, defenses, percentage shares and the Ecaz-victory holding; the entitlement ends immediately on departure, contest or native repopulation. A recorded source observation is still required. Basic Tupile slot leasing keeps the conservative original-epoch gate. Visibly provisional, not a publisher or numerical user ruling. | [Occupation](HOMEWORLD_OCCUPATION_RULES.md#basic-current-sole-benefit-policy--9-october-2026) |
 
 No publication or faction/mode gate is opened. The exact 7 October user