(;GM[1]FF[4]SZ[19]
GN[Opposite colored neighbour block with 1 liberty: Legal move]
PC[http://senseis.xmp.net/?SimpleGo/version00]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SimpleGo/version00

Opposite colored neighbour block with 1 liberty: Legal move]
PL[W]

AB[ba][ab][bb][cb][db][ac][dc][bd][dd][ce]
AW[cc][ad][cd][ae][be]
SQ[bd]

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

;SQ[bd]
)
