(;GM[1]FF[4]SZ[19]
GN[Main line]
PC[http://senseis.xmp.net/?BeginnerExercise56/Solution]AP[GoWiki:2009]
DT[2009-12-16]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise56/Solution

Main line]
PL[B]

AB[hp][ip][jp][hq][kq][hr][jr][kr]
AW[go][ho][io][jo][ko][lo][gp][lp][gq][iq][lq][er][gr][lr][nr]

;B[ks]C[B1]MN[1]
;W[is]C[W2]MN[2]
;B[hs]C[B3]MN[3]
;W[ir]C[W4]MN[4]
;B[kp]C[B5]MN[5]

;
)
