(;GM[1]FF[4]SZ[19]
GN[Black saves the groups]
PC[http://senseis.xmp.net/?BeginnerExercise27/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise27/Solution

Black saves the groups]
PL[B]

AB[fo][dp][gp][eq][fq][gq][lq][mq][dr][fr][hr][jr][kr][lr][nr][fs][ns]
AW[dn][en][fn][gn][co][ho][cp][hp][kp][lp][mp][cq][dq][hq][jq][nq][oq][cr][ir][or][qr][cs][is]
LB[eo:b][ep:b][er:a][ds:a][es:a]

;B[hs]C[B1]MN[1]
;W[iq]C[W2]MN[2]
;B[js]C[B3]MN[3]
;W[ls]C[W4]MN[4]
;B[ms]C[B5]MN[5]
;W[os]C[W6]MN[6]
;B[ks]C[B7]MN[7]

;LB[eo:b][ep:b][er:a][ds:a][es:a]
)
