(;GM[1]FF[4]SZ[19]
GN[The mistake corrected]
PC[http://senseis.xmp.net/?BeginnerExercise174/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise174/Solution

The mistake corrected]
PL[W]

AB[ga][cb][db][eb][gb][bc][gc][bd][ce]
AW[ha][hb][cc][dc][ec][hc][fd][gd][hd]

;W[fb]C[W1]MN[1]
;B[ea]C[B2]MN[2]
;W[fc]C[W3]MN[3]
;B[fa]C[B4]MN[4]

;
)
