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

Ko]
PL[B]

AB[bp][cp][dp][ep][cq][eq][br][er][cs][es]
AW[ao][bo][co][do][ap][aq][bq][cr]

;W[bs]C[W2]MN[2]
;B[dr]C[B3]MN[3]
;W[ar]C[W4]MN[4]
;B[as]C[B5]MN[5]

;
)
