(;GM[1]AP[StoneBase:SGFParser.3.0.1]SZ[19]CA[gb2312]HA[0]AB[bq][cq][co][dn][fo]AW[br][cr][dq][ep][fp][hq][ck]
;B[dr]
(;W[er];B[dp];W[ds];B[eo])
(;W[eq];B[dl]))