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

Black extends]
PL[B]

AB[cb][db][eb][dc][bd][cd][ce][bf][cf][dg][ch]
AW[bb][bc][cc][ec][fc][dd][de][df][bg][cg][bh]
LB[ad:a]

;B[eg]C[B1]MN[1]
;W[fe]C[W2]MN[2]
;B[ci]C[B3]MN[3]

;LB[ad:a]
)
