(;GM[1]FF[4]SZ[19]
GN[Main line 1]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem26/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem26/Solution

Main line 1]
PL[B]

AB[qo][ro][so][qp][oq][pq][qq][os]
AW[ql][rm][pn][po][np][pp][rp][nq][rq][nr][qr][qs]

;B[rr]C[B1]MN[1]
;W[sr]C[W2]MN[2]
;B[rs]C[B3]MN[3]
;W[ss]C[W4]MN[4]
;B[sp]C[B5]MN[5]
;W[or]C[W6]MN[6]
;B[pr]C[B7]MN[7]
;W[ps]C[W8]MN[8]
;B[sq]C[B9]MN[9]

;
)
