(;GM[1]FF[4]SZ[19]
GN[Main line (1)]
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 (1)]
PL[B]

AB[pk][qk][rk][pl][sl][on][ro][op][oq][qq][mr][or][qr]
AW[ql][qm][qn][qo][pp][qp][pq][pr][rs]

;B[rp]C[B1]MN[1]
;W[rq]C[W2]MN[2]
;B[sr]C[B3]MN[3]
;W[rn]C[W4]MN[4]
;B[rr]C[B5]MN[5]
;W[so]C[W6]MN[6]
;B[ps]C[B7]MN[7]
;W[sp]C[W8]MN[8]
;B[sm]C[B9]MN[9]
;W[qs]C[W10]MN[10]

;
)
