(;GM[1]FF[4]SZ[19]
GN[Snapback]
PC[http://senseis.xmp.net/?BeginnerExercise189/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise189/Solution

Snapback]
PL[B]

AB[ca][da][ab][bb][eb][cc][dc]
AW[ba][fa][fb][bc][ec][fc][bd][cd][dd]
CR[cc][dc]
LB[db:a]

;B[ea]C[B1]MN[1]
;W[cb]C[W2]MN[2]

;CR[cc][dc]
LB[db:a]
)
