(;GM[1]FF[4]SZ[19]
GN[White first]
PC[http://senseis.xmp.net/?BeginnersEndgameExercise6/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnersEndgameExercise6/Solution

White first]
PL[W]

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

;W[bk]C[W1]MN[1]
;B[ck]C[B2]MN[2]
;W[aj]C[W3]MN[3]

;LB[ai:a]
)
