(;GM[1]FF[4]SZ[19]
GN[White plays last]
PC[http://senseis.xmp.net/?BeginnerExercise92/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise92/Solution

White plays last]
PL[B]

AB[jn][kn][ln][mn][eo][fo][go][io][ko][mp][np][eq][fq][hq][iq][gr][hr][jr][kr][mr][nr]
AW[lo][gp][hp][ip][jp][lp][gq][jq][kq][lq][fr][ir][lr][fs][is]

;B[er]C[B1]MN[1]
;W[gs]C[W2]MN[2]
;B[es]C[B3]MN[3]
;W[hs]C[W4]MN[4]

;
)
