Λειτουργία Zεν
Chess-Online
12345678abcdefgh
1d4Nf62c4e63Nc3d54Nf3c55e3cxd46exd4Nc67cxd5Nxd58Bd3Bb49Qc2Ba510O-Og611Bh6Nxc312bxc3Bd713Ne5Nxe514dxe5Bc615Qb3Qd516Bc4