(;GM[1]FF[4]SZ[19]
GN[Main line (2)]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem49/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem49/Solution

Main line (2)]
PL[B]

AB[pk][qk][rk][pl][sl][sm][on][op][oq][qq][mr][or][qr][rr][sr][ps]
AW[ql][qm][qn][rn][qo][so][pp][qp][sp][pq][rq][pr]

;B[ss]C[B11]MN[11]
;W[qs]C[W12]MN[12]
;B[rs]C[B13]MN[13]
;W[sq]C[W14]MN[14]
;B[os]C[B15]MN[15]

;
)
