(;GM[1]FF[4]SZ[19]
GN[Analysis]
PC[http://senseis.xmp.net/?BeginnerExercise194/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise194/Solution

Analysis]
PL[W]

AB[ap][bp][cp][dp][dq][dr][bs][cs][ds]
AW[ao][bo][co][do][eo][ep][aq][bq][eq][br][cr][er][es]

;W[as]C[W1]MN[1]
;B[ar]C[B2]MN[2]

;
)
