Hard-tier curation: Art-of-War quartet

Each hard tier gets a seed-chosen second spawn_point group, designed
to PRESERVE the spatial puzzle from both anchors:
- decoy-sacrifice / lure-the-tiger / sequenced-citadel: same
main(+bait) formation y-shifted; enemy/objective fixed so the
bait/lure/ordering puzzle holds from either start
- indirect-approach: gun line split across BOTH spawn corridors so
the short route stays lethal regardless of seed (detour-only,
zero-loss property preserved)
fail_conditions already present. UPGRADED += 4 artofwar; live
seed→distinct-start passes; existing ordering-property tests intact.

openra_bench/scenarios/packs/artofwar-decoy-sacrifice.yaml

@@ -95,9 +95,13 @@ levels:
   hard:
     description: >
       The main body must arrive nearly intact (loss cap) — only the
-      bait may be spent, not the army.
+      bait may be spent. The force stages from a seed-chosen latitude
+      (two spawn_point groups, same main+bait formation) so the decoy
+      line that works can't be memorised; guards sit on the objective
+      beyond initial sight.
     overrides:
       actors:
+        # spawn_point 0 — northern staging
         - type: 2tnk
           owner: agent
           position: [6, 22]
@@ -105,6 +109,9 @@ levels:
           health: 100
           facing: -1
           count: 3
+          spawn_point: 0
+          randomize:
+            position: {base: [6, 22], offset: 3}
         - type: jeep
           owner: agent
           position: [6, 30]
@@ -112,6 +119,26 @@ levels:
           health: 100
           facing: -1
           count: 2
+          spawn_point: 0
+        # spawn_point 1 — southern staging (same formation, shifted)
+        - type: 2tnk
+          owner: agent
+          position: [6, 40]
+          stance: 3
+          health: 100
+          facing: -1
+          count: 3
+          spawn_point: 1
+          randomize:
+            position: {base: [6, 40], offset: 3}
+        - type: jeep
+          owner: agent
+          position: [6, 48]
+          stance: 3
+          health: 100
+          facing: -1
+          count: 2
+          spawn_point: 1
         - type: e1
           owner: enemy
           position: [40, 24]

openra_bench/scenarios/packs/artofwar-indirect-approach.yaml

@@ -79,9 +79,14 @@ levels:
         own_units_gte: 1
     max_turns: 90
   hard:
-    description: 'Zero-loss traversal: the indirect route must be exact.'
+    description: >
+      Zero-loss traversal, seed-chosen start latitude. Two spawn_point
+      groups (y26 / y34); the gun line is split to span BOTH corridors
+      so the short route is lethal from either start — the safe detour
+      differs by seed and can't be memorised.
     overrides:
       actors:
+        # spawn_point 0 — northern start
         - type: 1tnk
           owner: agent
           position: [6, 26]
@@ -89,13 +94,36 @@ levels:
           health: 100
           facing: -1
           count: 3
+          spawn_point: 0
+          randomize:
+            position: {base: [6, 26], offset: 2}
+        # spawn_point 1 — southern start
+        - type: 1tnk
+          owner: agent
+          position: [6, 34]
+          stance: 3
+          health: 100
+          facing: -1
+          count: 3
+          spawn_point: 1
+          randomize:
+            position: {base: [6, 34], offset: 2}
+        # gun line split across BOTH spawn corridors (short route
+        # lethal regardless of seed → detour is the only zero-loss path)
         - type: e1
           owner: enemy
           position: [22, 26]
           stance: 3
           health: 100
           facing: -1
-          count: 10
+          count: 5
+        - type: e1
+          owner: enemy
+          position: [22, 34]
+          stance: 3
+          health: 100
+          facing: -1
+          count: 5
     win_condition:
       all_of:
         - all_units_in_region: {x: 46, y: 26, radius: 4}

openra_bench/scenarios/packs/artofwar-lure-the-tiger.yaml

@@ -91,9 +91,14 @@ levels:
         own_units_gte: 1
     max_turns: 85
   hard:
-    description: 'Loss-capped: the bait may die, the main force may not.'
+    description: >
+      Loss-capped: the bait may die, the main force may not. Force
+      stages from a seed-chosen latitude (two spawn_point groups, same
+      main+lure formation) — the lure path that works can't be
+      memorised. The tiger blocks the lane beyond initial sight.
     overrides:
       actors:
+        # spawn_point 0 — northern staging
         - type: 2tnk
           owner: agent
           position: [6, 24]
@@ -101,6 +106,9 @@ levels:
           health: 100
           facing: -1
           count: 3
+          spawn_point: 0
+          randomize:
+            position: {base: [6, 24], offset: 3}
         - type: jeep
           owner: agent
           position: [6, 16]
@@ -108,6 +116,26 @@ levels:
           health: 100
           facing: -1
           count: 1
+          spawn_point: 0
+        # spawn_point 1 — southern staging
+        - type: 2tnk
+          owner: agent
+          position: [6, 40]
+          stance: 3
+          health: 100
+          facing: -1
+          count: 3
+          spawn_point: 1
+          randomize:
+            position: {base: [6, 40], offset: 3}
+        - type: jeep
+          owner: agent
+          position: [6, 32]
+          stance: 3
+          health: 100
+          facing: -1
+          count: 1
+          spawn_point: 1
         - type: 3tnk
           owner: enemy
           position: [26, 24]

openra_bench/scenarios/packs/artofwar-sequenced-citadel.yaml

@@ -69,6 +69,7 @@ levels:
       tick band, with the force near-intact.
     overrides:
       actors:
+        # spawn_point 0 — northern staging
         - type: 2tnk
           owner: agent
           position: [6, 20]
@@ -76,6 +77,21 @@ levels:
           health: 100
           facing: -1
           count: 3
+          spawn_point: 0
+          randomize:
+            position: {base: [6, 20], offset: 3}
+        # spawn_point 1 — southern staging (same ordered task,
+        # different approach latitude — seed-chosen)
+        - type: 2tnk
+          owner: agent
+          position: [6, 36]
+          stance: 3
+          health: 100
+          facing: -1
+          count: 3
+          spawn_point: 1
+          randomize:
+            position: {base: [6, 36], offset: 3}
         - type: e1
           owner: enemy
           position: [44, 20]

tests/test_hard_tier.py

@@ -27,6 +27,10 @@ UPGRADED = [
     "adversarial-duel",
     "adversarial-skirmish",
     "adversarial-siege",
+    "artofwar-decoy-sacrifice",
+    "artofwar-indirect-approach",
+    "artofwar-lure-the-tiger",
+    "artofwar-sequenced-citadel",
 ]