(;GM[1]FF[4]SZ[19]
GN[Scenario C: Black uses the corner as a ko threat, and White responds]
PC[http://senseis.xmp.net/?posting=7769]AP[GoWiki:2009]
DT[2010-06-16]
C[Diagram from http://senseis.xmp.net/?posting=7769

Scenario C: Black uses the corner as a ko threat, and White responds]
PL[B]

AB[ca][cb][ac][bc][cc][bd][ae][be]
AW[ba][da][ab][db][dc][cd][ce][af][bf][df]
CR[ca][cb][ac][bc][cc][bd][ae][be]

;B[bb]C[B1]MN[1]
;W[ad]C[W2]MN[2]

;CR[ca][cb][ac][bc][cc][bd][ae][be]
)
