NODE 734 — TERMINAL RELAY

{
  "type": "galton",
  "difficulty": 1,
  "char_count": 7,
  "char_width": 3,
  "char_height": 5,
  "char_gap": 1,
  "chars": [
    [
      [
        7.26,
        1.22,
        0.66
      ],
      [
        1.86,
        5.26,
        8.84
      ],
      [
        0.5,
        8.75,
        8.77
      ],
      [
        1.97,
        5.56,
        6.56
      ],
      [
        7.37,
        0.94,
        1.11
      ]
    ],
    [
      [
        8.05,
        1.06,
        5.39
      ],
      [
        1.03,
        7.4,
        0.59
      ],
      [
        1.71,
        5.97,
        1.15
      ],
      [
        1.73,
        5.9,
        0.86
      ],
      [
        7.71,
        1.72,
        6.29
      ]
    ],
    [
      [
        1.97,
        7.48,
        7.42
      ],
      [
        1.61,
        6.46,
        8.87
      ],
      [
        1.15,
        7.96,
        5.0
      ],
      [
        1.83,
        7.45,
        7.77
      ],
      [
        1.7,
        0.91,
        0.81
      ]
    ],
    [
      [
        0.62,
        5.91,
        6.21
      ],
      [
        1.82,
        7.12,
        7.29
      ],
      [
        1.11,
        7.24,
        7.78
      ],
      [
        0.57,
        6.52,
        5.66
      ],
      [
        1.75,
        0.88,
        1.9
      ]
    ],
    [
      [
        1.87,
        1.31,
        1.16
      ],
      [
        7.14,
        1.73,
        5.84
      ],
      [
        7.52,
        1.35,
        8.47
      ],
      [
        5.66,
        0.6,
        5.3
      ],
      [
        1.07,
        0.7,
        1.1
      ]
    ],
    [
      [
        0.93,
        0.88,
        7.04
      ],
      [
        1.7,
        7.61,
        1.47
      ],
      [
        1.49,
        5.72,
        1.54
      ],
      [
        1.93,
        5.93,
        0.75
      ],
      [
        1.96,
        1.94,
        5.87
      ]
    ],
    [
      [
        1.19,
        0.82,
        1.41
      ],
      [
        0.91,
        6.09,
        5.21
      ],
      [
        1.76,
        0.74,
        6.35
      ],
      [
        0.71,
        9.0,
        6.89
      ],
      [
        1.85,
        1.81,
        0.85
      ]
    ]
  ],
  "font": {
    "A": [
      "010",
      "101",
      "111",
      "101",
      "101"
    ],
    "B": [
      "110",
      "101",
      "110",
      "101",
      "110"
    ],
    "C": [
      "011",
      "100",
      "100",
      "100",
      "011"
    ],
    "D": [
      "110",
      "101",
      "101",
      "101",
      "110"
    ],
    "E": [
      "111",
      "100",
      "110",
      "100",
      "111"
    ],
    "F": [
      "111",
      "100",
      "110",
      "100",
      "100"
    ],
    "G": [
      "011",
      "100",
      "101",
      "101",
      "011"
    ],
    "H": [
      "101",
      "101",
      "111",
      "101",
      "101"
    ],
    "I": [
      "111",
      "010",
      "010",
      "010",
      "111"
    ],
    "J": [
      "111",
      "010",
      "010",
      "010",
      "110"
    ],
    "K": [
      "101",
      "101",
      "110",
      "101",
      "101"
    ],
    "L": [
      "100",
      "100",
      "100",
      "100",
      "111"
    ],
    "M": [
      "101",
      "111",
      "101",
      "101",
      "101"
    ],
    "N": [
      "101",
      "111",
      "111",
      "101",
      "101"
    ],
    "O": [
      "010",
      "101",
      "101",
      "101",
      "010"
    ],
    "P": [
      "110",
      "101",
      "110",
      "100",
      "100"
    ],
    "Q": [
      "010",
      "101",
      "101",
      "110",
      "011"
    ],
    "R": [
      "110",
      "101",
      "110",
      "101",
      "101"
    ],
    "S": [
      "011",
      "100",
      "010",
      "001",
      "110"
    ],
    "T": [
      "111",
      "010",
      "010",
      "010",
      "010"
    ],
    "U": [
      "101",
      "101",
      "101",
      "101",
      "101"
    ],
    "V": [
      "101",
      "101",
      "101",
      "010",
      "010"
    ],
    "W": [
      "101",
      "101",
      "101",
      "111",
      "101"
    ],
    "X": [
      "101",
      "010",
      "010",
      "010",
      "101"
    ],
    "Y": [
      "101",
      "010",
      "010",
      "010",
      "010"
    ],
    "Z": [
      "111",
      "001",
      "010",
      "100",
      "111"
    ]
  },
  "decoy_count": 0,
  "instructions": "1. Each character is a 3x5 grid of Galton-board pin densities.\n2. Low pin density (<3.5) = balls pass through = pixel ON.\n3. High pin density (>3.5) = balls blocked = pixel OFF.\n4. DECOYS: some empty cells also have low density.\n5. Run 2-means clustering (k=2) on all values to find LOW cluster.\n6. Set threshold at (low_mean + high_mean)/2.\n7. For each character, try ALL font patterns, pick the closest match.",
  "hint": "2-means cluster 27\u00d75 pin densities. Low cluster \u2248 ON, high cluster \u2248 OFF. Match each 3\u00d75 bitmap to the 26-letter font.",
  "answer_format": "comma-separated bin counts"
}