I never played this variation, but I feel that it would be much too strategic. The presence of the edged some how perturbates strategy with tactic elements. Even reversi 10x10 has got IMHO a too long midgame due to the long time needed to reach edges and corners' perturbation and, hence, the endgame...
(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)