{
  "name": "golomb_n10__v0_nh",
  "problem_type": "golomb",
  "params": {
    "n": 10
  },
  "prompt": "Find a Golomb ruler with 10 marks. A Golomb ruler is a set of 10 integers (marks) such that all pairwise distances between marks are unique. The first mark should be at position 0.\n\nReturn a list of 10 integers in increasing order representing the mark positions, or state \"UNSATISFIABLE\" if no solution exists.",
  "satisfiable": true,
  "solution": {
    "x": [
      0,
      2,
      14,
      21,
      29,
      32,
      45,
      49,
      54,
      55
    ]
  },
  "difficulty": {
    "solve_time_ms": 18872.1,
    "search_space": 110462212541120451001,
    "num_variables": 10,
    "num_constraints": 5,
    "num_edges": -1,
    "backend": "pycsp",
    "solve_tier": "hard",
    "solve_pct_global": 99.44,
    "solve_pct_type": 91.67
  },
  "partial_assignment": null
}