[ { "n": 3, "sol_prob": 0.7, "k1_range": [ 1, 2 ], "k2_range": [ 1, 2 ] }, { "n": 7, "sol_prob": 0.3, "k1_range": [ 2, 4 ], "k2_range": [ 2, 4 ] }, { "n": 4, "sol_prob": 0.6, "k1_range": [ 1, 4 ], "k2_range": [ 1, 4 ] }, { "n": 6, "sol_prob": 0.4, "k1_range": [ 3, 5 ], "k2_range": [ 2, 5 ] } ]