{
  "id": "zugzwang.forced",
  "term": "zugzwang",
  "sense": "forced",
  "pos": "noun",
  "status": "published",
  "level": 14,
  "domain": "agency",
  "style": "window",
  "definition": "A thing that must act when each action within its reach moves it nearer a wall, and not acting is the one action out of reach.",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "act.deed",
      "action.deed",
      "reach.action",
      "motion.movement",
      "near.spatial",
      "wall.range-end",
      "window.range",
      "choice.decision"
    ],
    "interaction": "The rules demand a move, so the null action that would hold the position is taken out of reach; each action left keeps the thing inside the window but nearer its wall. No single threat does the damage; the obligation to act does.",
    "novel_properties": [
      "an obligation to act that is itself the wall",
      "a position that is safe only if left alone",
      "reach that is not empty and is worth less than none"
    ]
  },
  "examples": [
    {
      "text": "In the chess position called a trebuchet, whichever side is to move must give up its pawn and loses, because the rules do not allow a player to pass.",
      "domain": "chess"
    }
  ],
  "relations": [
    {
      "id": "checkmate.other-set",
      "type": "contrasts-with",
      "note": "zugzwang leaves actions inside the window, each one worse; checkmate leaves none inside"
    },
    {
      "id": "watchful-waiting.declined",
      "type": "contrasts-with",
      "note": "not acting is the reach watchful waiting uses and zugzwang removes"
    },
    {
      "id": "doomed.inevitable",
      "type": "contrasts-with",
      "note": "doomed: drift carries it to the wall; zugzwang: its own compelled action does"
    }
  ],
  "used_by": [],
  "forms": [
    "zugzwang",
    "zugzwangs"
  ],
  "closed": true,
  "provenance": {
    "author": "claude-opus-5-5:hand-curated",
    "date": "2026-09-28",
    "confidence": 0.85,
    "sources": [
      "schema/power-agency-phase.md"
    ]
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-zugzwang.forced"
}