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Rooted by: Convert field to coordinate
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  • Code 
    def field_to_coordinate(field):
    x,y = field[0], field[1:]
    return (ord(x) - 97, int(y) - 1)
     Test Cases 
    test.assert_equals(field_to_coordinate('c1'), (2, 0))
test.assert_equals(field_to_coordinate('d2'), (3, 1))
test.assert_equals(field_to_coordinate('f5'), (5, 4))
    View Run Output
  • Code
    • import re
    • def field_to_coordinate(field):
    • # Compute a coordinate which represents specified `field`,
    • # i.e. if field = 'd2' returned value should be [3, 1]
    • x, y = re.search(r"([^\d])(\d+)", field).groups()
    • x,y = field[0], field[1:]
    • return (ord(x) - 97, int(y) - 1)