Λειτουργία Zεν
Chess-Online
12345678abcdefgh
1d4Nf62Nc3e53dxe5Ng44Be3Nxe35fxe3Nc66Nf3Bb47Qd3Qe78O-O-OBxc39Qxc3O-O10h3Re811Rd5Qe612e4Ne713Rc5c614Ng5Qxa2