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

Black to play]
PL[W]

AB[eb][hb][cc][cd][ed][be][bf][bg][ch]
AW[bb][cb][bc][bd][ce][cf][ef]
CR[cc][cd]

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

;CR[cc][cd]
)
