(;GM[1]FF[4]SZ[19]
GN[B1 and B3 are sacrifice stones]
PC[http://senseis.xmp.net/?ArticleOfTheWeek/Archive2010]AP[GoWiki:2009]
DT[2011-01-06]
C[Diagram from http://senseis.xmp.net/?ArticleOfTheWeek/Archive2010

B1 and B3 are sacrifice stones]
PL[B]

AB[bc][dc][bd][ed][be][bf][df][cg][dg][eg][eh]
AW[bb][cc][cd][ce][cf][bg][bh][ch][dh][ei]

;B[cb]C[B1]MN[1]
;W[db]C[W2]MN[2]
;B[ca]C[B3]MN[3]

;
)
