[
    {
        "n_range": [
            5,
            15
        ],
        "m_range": [
            3,
            8
        ],
        "bit_width": 10,
        "solvable_prob": 0.6
    },
    {
        "n_range": [
            4,
            12
        ],
        "m_range": [
            2,
            7
        ],
        "bit_width": 12,
        "solvable_prob": 0.7
    },
    {
        "n_range": [
            7,
            16
        ],
        "m_range": [
            3,
            9
        ],
        "bit_width": 18,
        "solvable_prob": 0.5
    },
    {
        "n_range": [
            6,
            14
        ],
        "m_range": [
            4,
            10
        ],
        "bit_width": 15,
        "solvable_prob": 0.4
    }
]