(;GM[1]FF[4]SZ[19]
GN[Large avalanche]
PC[http://senseis.xmp.net/?KyuExercise103]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KyuExercise103

Large avalanche]
PL[W]

AB[cb][db][eb][dc][fc][bd][cd][ce][bf][cf][dg][eg][ch][gh][ei]
AW[bb][bc][cc][ec][dd][de][fe][df][ff][bg][cg][bh][ci]

;W[ae]C[W1]MN[1]

;
)
