(;GM[1]FF[4]SZ[19]
GN[The idea is similar to Train Like a Pro 2, Day 29 - problem 3]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem171/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem171/Solution

The idea is similar to Train Like a Pro 2, Day 29 - problem 3]
PL[W]

AB[cq][fq][gq][br][cr][dr]
AW[dn][fo][bp][cp][dp][hp][bq][dq][hq][jq]

;W[hs]C[W1]MN[1]
;B[fr]C[B2]MN[2]
;W[ar]C[W3]MN[3]
;B[hr]C[B4]MN[4]
;W[ir]C[W5]MN[5]
;B[gs]C[B6]MN[6]

;
)
