There's just one thing about footballers Cristiano Ronaldo can't understand after all these years...

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2