(;GM[1]FF[4]SZ[19]
GN[White makes trouble]
PC[http://senseis.xmp.net/?BeginnerExercise60/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise60/Solution

White makes trouble]
PL[B]

AB[gb][hb][gc][gd][hd][id][jd][ke][if][kf][kg]
AW[fb][fc][hc][ic][jc][fd][kd][ld][md][fe][ge][mf][hg][lg][ih][kh][lh]

;B[jb]C[B1]MN[1]
;W[ib]C[W2]MN[2]
;B[kc]C[B3]MN[3]
;W[ia]C[W4]MN[4]
;B[ja]C[B5]MN[5]

;
)
