(;GM[1]FF[4]SZ[19]
GN[Black error]
PC[http://senseis.xmp.net/?BeginnersEndgameExercise1/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnersEndgameExercise1/Solution

Black error]
PL[W]

AB[fb][gb][cc][hc][cd][dd][ed][fd][gd][hd][ae][be]
AW[oa][hb][ib][ob][dc][ec][fc][gc][ic][mc][nc][jd][kd][ld]

;W[ga]C[W1]MN[1]
;B[fa]C[B2]MN[2]
;W[eb]C[W3]MN[3]
;B[ha]C[B4]MN[4]
;W[ea]C[W5]MN[5]

;
)
