(;GM[1]FF[4]SZ[19]
GN[Black wins]
PC[http://senseis.xmp.net/?BeginnerExercise201/Solution]AP[GoWiki:2009]
DT[2014-07-28]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise201/Solution

Black wins]
PL[B]

AB[cg][dg][eg][bh][ch][bi][ci][aj][bj][dj][fj][dk][dl][cm]
AW[bf][cf][df][ef][ff][bg][fg][ah][dh][eh][fh][ai][di][cj][ck][bl]
LB[ak:a]

;B[ag]C[B1]MN[1]
;W[bm]C[W2]MN[2]
;B[cl]C[B3]MN[3]
;W[bk]C[W4]MN[4]
;B[bn]C[B5]MN[5]
;W[bo]C[W6]MN[6]
;B[cn]C[B7]MN[7]
;W[an]C[W8]MN[8]
;B[am]C[B9]MN[9]
;W[al]C[W10]MN[10]

;LB[ak:a]
)
