Chế độ tập trung
Chess-Online
12345678abcdefgh
1d4Nf62c4b63Nc3e64e4Bb75Bd3d66f4Be77Nf3O-O8O-ONbd79e5dxe510fxe5Ne811Qe2c512d5exd513cxd5Qc814e6Ndf615exf7+Rxf716Ng5Rf817Qxe7h618Bh7+Nxh7