Previous cores
[{"cp": [45, 90], "age": 22, "life": 22, "max_r": 6},
{"cp": [72, 61], "age": 20, "life": 25, "max_r": 7},
{"cp": [97, 48], "age": 17, "life": 23, "max_r": 7},
{"cp": [7, 41], "age": 15, "life": 25, "max_r": 8},
{"cp": [53, 2], "age": 14, "life": 19, "max_r": 7},
{"cp": [31, 22], "age": 11, "life": 25, "max_r": 7},
{"cp": [47, 69], "age": 10, "life": 15, "max_r": 5}]
Current cores
[{"cp": [72, 61], "age": 21, "life": 25, "max_r": 7},
{"cp": [97, 48], "age": 18, "life": 23, "max_r": 7},
{"cp": [7, 41], "age": 16, "life": 25, "max_r": 8},
{"cp": [53, 2], "age": 15, "life": 19, "max_r": 7},
{"cp": [31, 22], "age": 12, "life": 25, "max_r": 7},
{"cp": [47, 69], "age": 11, "life": 15, "max_r": 5}]