In a proof, we would probably count horizontal and vetical distance separately, so L3U4, for example, which fits on a 13x13 board, would be seven spaces from center.
(esconder) Mantenha a sua Caixa de Mensagens limpa, Arquivando mensagens importantes e usando regularmente a opção "Apagar TODAS as Mensagens". (pauloaguia) (mostrar todas as dicas)