{
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    "generated_at_utc": "2026-10-09T14:06:50.925410+00:00",
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    "platform": "Windows-10-10.0.19045-SP0"
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    "slug": "ragnarsson-fuhrmann-kronborg",
    "title": "Dagur Ragnarsson vs Bahne Fuhrmann - three practical turning points",
    "source": {
      "label": "Kronborg Chess Open 2026 live game",
      "url": "https://www.chess.com/events/kronborg-chess-open-2026/02/Ragnarsson_Dagur-Fuhrmann_Bahne"
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            "e7c5",
            "a7c5",
            "d5c5",
            "h2g2",
            "c5c2",
            "d2d3",
            "c2b2",
            "d3f3",
            "f8e8"
          ],
          "san": "26...g5 27. hxg5 hxg5 28. Qb7 Rd7 29. Qf3 Kg7 30. Bf1 Qd5 31. Qxd5 Rxd5 32. Be3 Nc4 33. Bxa7 Nxd2 34. Rxd2 Bc5 35. Bxc5 Rxc5 36. Kg2 Rc2 37. Rxd3 Rxb2 38. Rf3 Re8"
        },
        "nodes": 250332,
        "depth": 17,
        "seldepth": 32,
        "verified_choices": [
          {
            "move": {
              "uci": "b6a4",
              "san": "Na4"
            },
            "is_played_move": true,
            "is_engine_best_move": false,
            "selected_by_models": [],
            "score": {
              "centipawns": 18,
              "is_mate": false,
              "mate_in": null,
              "comparison_cp": 18
            },
            "loss_cp": 190,
            "within_100cp": false,
            "within_200cp": true,
            "pv": {
              "uci": [
                "b6a4",
                "a6d3",
                "d4d3",
                "d2d3",
                "a4b2",
                "d3d8",
                "f8d8",
                "d1d8",
                "e7d8",
                "g2f1",
                "d8b6",
                "f4d2",
                "b6c5",
                "h2g2",
                "g8f8",
                "f1b5",
                "f8e7",
                "a3a4",
                "h6h5",
                "d2c3",
                "b2d1",
                "c3d2",
                "d1e3",
                "d2e3",
                "c5e3",
                "b5e2",
                "g7g6",
                "e2c4",
                "e3d4",
                "c4b5"
              ],
              "san": "26...Na4 27. Qxd3 Qxd3 28. Rxd3 Nxb2 29. Rxd8 Rxd8 30. Rxd8+ Bxd8 31. Bf1 Bb6 32. Bd2 Bc5 33. Kg2 Kf8 34. Bb5 Ke7 35. a4 h5 36. Bc3 Nd1 37. Bd2 Ne3+ 38. Bxe3 Bxe3 39. Be2 g6 40. Bc4 Bd4 41. Bb5"
            },
            "nodes": 250416,
            "depth": 18,
            "seldepth": 35
          },
          {
            "move": {
              "uci": "f2f1q",
              "san": "f1=Q"
            },
            "is_played_move": false,
            "is_engine_best_move": false,
            "selected_by_models": [
              "V15 Endgame",
              "V17 File Pressure",
              "V18 Defensive",
              "V6 Active",
              "V8 Sharp",
              "V9 Positional"
            ],
            "score": {
              "centipawns": 12,
              "is_mate": false,
              "mate_in": null,
              "comparison_cp": 12
            },
            "loss_cp": 196,
            "within_100cp": false,
            "within_200cp": true,
            "pv": {
              "uci": [
                "f2f1q"
              ],
              "san": "26...f1=Q"
            },
            "nodes": 250346,
            "depth": 17,
            "seldepth": 35
          }
        ]
      }
    },
    {
      "id": "choice-39",
      "label": "White to move on move 39",
      "fen": "3r2k1/p3Qpp1/1b5p/4P2P/1P3B2/P5PK/8/3r4 w - - 9 39",
      "side_to_move": "white",
      "legal_move_count": 27,
      "played_move": {
        "uci": "a3a4",
        "san": "a4"
      },
      "model_consensus": {
        "distinct_top_moves": 1,
        "most_selected_move": {
          "uci": "e7d8",
          "san": "Qxd8+"
        },
        "most_selected_count": 6
      },
      "public_choice_gate": {
        "required_distinct_safe_model_moves": 3,
        "safety_threshold_cp": 100,
        "observed_distinct_model_moves": 1,
        "safe_distinct_model_moves": 0,
        "passes": false
      },
      "models": [
        {
          "key": "v6_active",
          "label": "V6 Active",
          "intended_profile": "active, initiative-seeking",
          "top_move": {
            "uci": "e7d8",
            "san": "Qxd8+",
            "hybrid_score_cp": 338.615509
          },
          "top_three": [
            {
              "uci": "e7d8",
              "san": "Qxd8+",
              "hybrid_score_cp": 338.615509
            },
            {
              "uci": "e7f7",
              "san": "Qxf7+",
              "hybrid_score_cp": 73.656966
            },
            {
              "uci": "f4h6",
              "san": "Bxh6",
              "hybrid_score_cp": 73.656458
            }
          ]
        },
        {
          "key": "v8_sharp",
          "label": "V8 Sharp",
          "intended_profile": "sharp club-player profile on curated data",
          "top_move": {
            "uci": "e7d8",
            "san": "Qxd8+",
            "hybrid_score_cp": 342.721439
          },
          "top_three": [
            {
              "uci": "e7d8",
              "san": "Qxd8+",
              "hybrid_score_cp": 342.721439
            },
            {
              "uci": "f4h6",
              "san": "Bxh6",
              "hybrid_score_cp": 74.968191
            },
            {
              "uci": "e7a7",
              "san": "Qxa7",
              "hybrid_score_cp": 74.804906
            }
          ]
        },
        {
          "key": "v9_positional",
          "label": "V9 Positional",
          "intended_profile": "calm positional pressure",
          "top_move": {
            "uci": "e7d8",
            "san": "Qxd8+",
            "hybrid_score_cp": 343.145502
          },
          "top_three": [
            {
              "uci": "e7d8",
              "san": "Qxd8+",
              "hybrid_score_cp": 343.145502
            },
            {
              "uci": "f4h6",
              "san": "Bxh6",
              "hybrid_score_cp": 74.077691
            },
            {
              "uci": "e7f7",
              "san": "Qxf7+",
              "hybrid_score_cp": 74.012923
            }
          ]
        },
        {
          "key": "v15_endgame",
          "label": "V15 Endgame",
          "intended_profile": "endgame-focused distilled evaluator",
          "top_move": {
            "uci": "e7d8",
            "san": "Qxd8+",
            "hybrid_score_cp": 356.240417
          },
          "top_three": [
            {
              "uci": "e7d8",
              "san": "Qxd8+",
              "hybrid_score_cp": 356.240417
            },
            {
              "uci": "e7f7",
              "san": "Qxf7+",
              "hybrid_score_cp": 71.834715
            },
            {
              "uci": "f4h6",
              "san": "Bxh6",
              "hybrid_score_cp": 71.819751
            }
          ]
        },
        {
          "key": "v17_file_pressure",
          "label": "V17 File Pressure",
          "intended_profile": "open-file and rook-pressure weighting",
          "top_move": {
            "uci": "e7d8",
            "san": "Qxd8+",
            "hybrid_score_cp": 343.008621
          },
          "top_three": [
            {
              "uci": "e7d8",
              "san": "Qxd8+",
              "hybrid_score_cp": 343.008621
            },
            {
              "uci": "e7f7",
              "san": "Qxf7+",
              "hybrid_score_cp": 76.031656
            },
            {
              "uci": "e7a7",
              "san": "Qxa7",
              "hybrid_score_cp": 75.471432
            }
          ]
        },
        {
          "key": "v18_defensive",
          "label": "V18 Defensive",
          "intended_profile": "defensive tension and counterpunch weighting",
          "top_move": {
            "uci": "e7d8",
            "san": "Qxd8+",
            "hybrid_score_cp": 337.580295
          },
          "top_three": [
            {
              "uci": "e7d8",
              "san": "Qxd8+",
              "hybrid_score_cp": 337.580295
            },
            {
              "uci": "e7f7",
              "san": "Qxf7+",
              "hybrid_score_cp": 76.096538
            },
            {
              "uci": "f4h6",
              "san": "Bxh6",
              "hybrid_score_cp": 75.607655
            }
          ]
        }
      ],
      "stockfish": {
        "best_move": {
          "uci": "e5e6",
          "san": "e6"
        },
        "best_score": {
          "centipawns": 189,
          "is_mate": false,
          "mate_in": null,
          "comparison_cp": 189
        },
        "best_pv": {
          "uci": [
            "e5e6",
            "f7e6",
            "e7e6",
            "g8f8",
            "a3a4",
            "d1d5",
            "a4a5",
            "b6d4",
            "b4b5",
            "d5h5",
            "h3g2",
            "d4c5",
            "b5b6",
            "a7b6",
            "a5b6",
            "c5b6",
            "e6b6",
            "h5d5",
            "b6e6",
            "d8d7"
          ],
          "san": "39. e6 fxe6 40. Qxe6+ Kf8 41. a4 R1d5 42. a5 Bd4 43. b5 Rxh5+ 44. Kg2 Bc5 45. b6 axb6 46. axb6 Bxb6 47. Qxb6 Rhd5 48. Qe6 R8d7"
        },
        "nodes": 250517,
        "depth": 16,
        "seldepth": 34,
        "verified_choices": [
          {
            "move": {
              "uci": "a3a4",
              "san": "a4"
            },
            "is_played_move": true,
            "is_engine_best_move": false,
            "selected_by_models": [],
            "score": {
              "centipawns": 27,
              "is_mate": false,
              "mate_in": null,
              "comparison_cp": 27
            },
            "loss_cp": 162,
            "within_100cp": false,
            "within_200cp": true,
            "pv": {
              "uci": [
                "a3a4",
                "d1d7"
              ],
              "san": "39. a4 R1d7"
            },
            "nodes": 250550,
            "depth": 14,
            "seldepth": 27
          },
          {
            "move": {
              "uci": "e7d8",
              "san": "Qxd8+"
            },
            "is_played_move": false,
            "is_engine_best_move": false,
            "selected_by_models": [
              "V15 Endgame",
              "V17 File Pressure",
              "V18 Defensive",
              "V6 Active",
              "V8 Sharp",
              "V9 Positional"
            ],
            "score": {
              "centipawns": -525,
              "is_mate": false,
              "mate_in": null,
              "comparison_cp": -525
            },
            "loss_cp": 714,
            "within_100cp": false,
            "within_200cp": false,
            "pv": {
              "uci": [
                "e7d8",
                "b6d8",
                "h3g4",
                "g7g5",
                "h5g6",
                "f7g6",
                "g4f3",
                "d8g5",
                "e5e6",
                "d1e1",
                "f4b8",
                "e1e6",
                "b8a7",
                "g8f7"
              ],
              "san": "39. Qxd8+ Bxd8 40. Kg4 g5 41. hxg6 fxg6 42. Kf3 Bg5 43. e6 Re1 44. Bb8 Rxe6 45. Bxa7 Kf7"
            },
            "nodes": 250110,
            "depth": 17,
            "seldepth": 23
          }
        ]
      }
    }
  ],
  "limitations": [
    "The six neural checkpoints are scalar evaluators, not move-policy models or explanation models.",
    "Their 768 inputs encode piece placement only; side to move is applied after inference, while castling rights, en-passant state, repetition, move history, and clocks are not model inputs.",
    "Profile labels describe intended training or runtime behavior and do not prove human-like personality or internal understanding.",
    "Stockfish results use a fixed node budget and configuration and are a verification snapshot, not a claim of perfect play.",
    "Stockfish was required to use two search threads. Parallel search can produce small score, depth, node-count, or PV differences on a fresh rerun even when the configured node limit is unchanged.",
    "Centipawn loss uses a 100,000 cp comparison value for forced-mate scores; mate status and mate distance are also reported separately.",
    "The analysis does not measure Elo, playing strength, or clean unseen test accuracy.",
    "Any reader-facing move explanation must describe observable chess features; it must not be presented as the model's internal reasoning."
  ]
}