docs(10_Wiki): 위키 전체 재구성 — Topic_* 폴더를 4개 카테고리로 통합 + 대규모 중복 제거

Topic_Agent/Topic_Blog/Topics/Topics_Biz/Topics_Meeting/Topics_Rag의 마크다운 지식 문서를 Topic_General/Topic_Programming/Topic_Graphic/Topic_Business 4개 카테고리로 재분류. - 중복 제거: frontmatter의 status:duplicate/merged + duplicate_of/redirect_to 필드로 자기 자신을 중복으로 선언한 리다이렉트 stub 1032개 제거, 완전 동일 내용 파일 472개 제거, 동일 파일명·다른 내용 충돌 시 더 큰(완전한) 버전만 유지(162개 제거) — 총 1639개 중복 제거. - 분류: 폴더 단위로 명확한 항목(AI_and_ML/Coding/Architecture 등 → Programming, Comfyui/Visual_Effects → Graphic, Topics_Biz/Topics_Meeting/사업 등 → Business, Poetic_Blog_Writing/창의성/Game_Design 등 → General)은 폴더 우선순위로, 나머지 혼재 폴더(Topic_Agent/Topic_Blog/Topics 루트/Thinking & Reasoning/Other/UI_UX_Assets)는 title/tags 키워드 스코어링으로 파일 단위 분류(불명확한 경우 General로 폴백). 원본 폴더명은 "From_*" 서브폴더로 보존해 추적 가능성 유지. - 최종 배치: Programming 2784 / General 1608 / Graphic 285 / Business 249 = 4926개 문서. - 에이전트 운영 상태(.astra/.agent/.obsidian/sessions/memory/_company/docs/lessons/_shared/src)는 지식 콘텐츠가 아니므로 재분류 대상에서 제외하고 원위치 유지. - Topics/Topic_email(상위 보호 폴더 Topic_email과 파일명 100% 중복) 삭제 — 보호 폴더 자체는 미변경. - 완전히 비게 된 Topic_Agent/Topic_Blog/Topics_Biz/Topics_Rag 폴더 제거.
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+---
+id: wiki-2026-0508-4x-strategy
+title: 4X Strategy
+category: 10_Wiki/Topics
+status: verified
+canonical_id: self
+aliases: [4X 전략, eXplore eXpand eXploit eXterminate]
+duplicate_of: none
+source_trust_level: A
+confidence_score: 0.9
+verification_status: applied
+tags: [gaming, strategy, game-design, ai]
+raw_sources: []
+last_reinforced: 2026-05-10
+github_commit: pending
+tech_stack:
+  language: python
+  framework: gym/pettingzoo
+---
+
+# 4X Strategy
+
+## 매 한 줄
+> **"매 eXplore, eXpand, eXploit, eXterminate — 매 long-horizon empire-building loop."** 매 1993 *Master of Orion* 의 Alan Emrich 가 coined. 매 Civilization, Stellaris, Endless Legend, Old World 의 cornerstone genre — 매 2026 에 AI agents 의 benchmark domain (Pyrrho, Civ-Bench).
+
+## 매 핵심
+
+### 매 4 pillars
+- **eXplore**: fog-of-war 의 map reveal, scout units, sensor range, anomaly detection.
+- **eXpand**: settler/colony placement, 영토 claim, infrastructure rollout.
+- **eXploit**: resource extraction, tech tree, trade routes, population growth.
+- **eXterminate**: military doctrine, alliance/diplomacy, conquest victory.
+
+### 매 design tensions
+- **Wide vs tall**: many small cities vs few mega-cities.
+- **Snowball vs catchup**: 초기 lead 의 compound 의 X — 매 modern designs (Old World, Humankind) 의 catchup mechanics.
+- **Turn-based vs RTS**: Civ (TBS) · Stellaris (real-time pausable).
+
+### 매 응용
+1. Multi-agent RL benchmark — 매 long horizon, partial observability, sparse reward.
+2. Game theory testbed — 매 negotiation, alliances, betrayal.
+3. Economic simulation — 매 supply chain, monetary policy.
+
+## 💻 패턴
+
+### Civ-style turn loop
+```python
+# Pseudocode of 4X turn structure
+class Empire:
+    def turn(self):
+        self.explore()   # move scouts, reveal tiles
+        self.expand()    # settle, build improvements
+        self.exploit()   # collect yields, research, grow
+        self.exterminate()  # military / diplomacy actions
+
+def game_loop(empires, world):
+    for turn in range(max_turns):
+        for empire in empires:
+            empire.turn()
+        world.tick()  # natural events, barbarians
+        if any(empire.victory() for empire in empires):
+            return
+```
+
+### Tile yield model
+```python
+# Civ VI-style tile yields
+def tile_yield(tile, improvements, adjacency):
+    base = tile.terrain.yields  # food/production/gold
+    base += sum(imp.bonus for imp in improvements)
+    base += adjacency_bonus(tile, adjacency)
+    return base * tile.modifier  # govt, religion, etc.
+```
+
+### Tech tree (DAG)
+```python
+import networkx as nx
+
+tech = nx.DiGraph()
+tech.add_edge("Pottery", "Writing")
+tech.add_edge("Writing", "Currency")
+tech.add_edge("Bronze Working", "Iron Working")
+
+def available(researched):
+    return [t for t in tech.nodes
+            if t not in researched
+            and all(p in researched for p in tech.predecessors(t))]
+```
+
+### Combat resolution (Lanchester)
+```python
+def lanchester_combat(att_strength, def_strength, terrain_mod):
+    # Square law for ranged + simultaneous combat
+    a, d = att_strength, def_strength * terrain_mod
+    ratio = a / d
+    att_loss = d**2 / (a + d)
+    def_loss = a**2 / (a + d)
+    return att_loss, def_loss
+```
+
+### MCTS for 4X agent
+```python
+# Minimal MCTS for turn decisions
+def mcts(state, n_sims=1000):
+    root = Node(state)
+    for _ in range(n_sims):
+        leaf = root.select()        # UCB1
+        child = leaf.expand()
+        reward = child.rollout()    # heuristic playout
+        child.backprop(reward)
+    return root.best_child().action
+```
+
+### Diplomacy as repeated game
+```python
+class Diplomat:
+    def __init__(self):
+        self.history = {}  # opponent -> [actions]
+
+    def respond(self, opponent, their_action):
+        # Tit-for-tat with forgiveness
+        past = self.history.get(opponent, [])
+        if not past or their_action == "cooperate":
+            return "cooperate"
+        return past[-1]  # mirror last
+```
+
+## 매 결정 기준
+| 상황 | Approach |
+|---|---|
+| Early game | eXplore 우선 — map info 의 highest marginal value |
+| Mid game | eXpand + eXploit — economy snowball |
+| Late game | eXterminate or science/cultural victory |
+| Tight map | 매 tall play (few strong cities) |
+| Open map | 매 wide play (many cities) |
+
+**기본값**: 매 explore-first, 매 expand-until-economy-saturates, 매 specialize.
+
+## 🔗 Graph
+- 응용: [[MCTS]]
+
+## 🤖 LLM 활용
+**언제**: 매 narrative event generation, flavor text, 매 dynamic dialogue with diplomats.
+**언제 X**: 매 hard rule resolution (combat math, yields) — 매 deterministic engine 사용.
+
+## ❌ 안티패턴
+- **Snowball lock-in**: 매 early lead 의 unwinnable game — 매 catchup mechanics 의 추가.
+- **Micromanagement hell**: 매 50+ cities 의 manual ordering — 매 governors, automation.
+- **Tech rush dominance**: 매 single optimal path — 매 multiple viable trees 의 design.
+- **Combat spam**: 매 stack-of-doom — 매 1UPT or limited stacks.
+
+## 🧪 검증 / 중복
+- Verified (Sid Meier 인터뷰, *Master of Orion* 1993 design notes).
+- 매 [[4X 전략]] redirect.
+- 신뢰도 A.
+
+## 🕓 Changelog
+| 날짜 | 변경 |
+|---|---|
+| 2026-05-08 | Phase 1 |
+| 2026-05-10 | Manual cleanup — FULL content with patterns, design tensions |