[
    {
        "n": 2,
        "m": 2,
        "ensure_solvable": false
    },
    {
        "n": 2,
        "m": 2,
        "ensure_solvable": true
    },
    {
        "n": 4,
        "m": 3,
        "ensure_solvable": true
    },
    {
        "n": 3,
        "m": 3,
        "ensure_solvable": true
    },
    {
        "n": 3,
        "m": 4,
        "ensure_solvable": true
    }
]