(;GM[1]FF[4]SZ[19]
GN[This looks like the general idea]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem144/Attempts]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem144/Attempts

This looks like the general idea]
PL[W]

AB[no][oo][np][pp][qp][mq][nq][qq][or][qr]
AW[mn][nn][on][rn][mo][po][qo][mp][op][rp][lq][rq][lr][rr][ms]

;W[ps]C[W1]MN[1]
;B[pr]C[B2]MN[2]
;W[oq]C[W3]MN[3]
;B[qs]C[B4]MN[4]
;W[os]C[W5]MN[5]
;B[ns]C[B6]MN[6]
;W[nr]C[W7]MN[7]

;
)
