(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White to play]C[Just play through the moves to move 14 which is the problem position. These do not represent a game sequence!]
;B[db]
;W[dc]
;B[ec]
;W[ed]
;B[fc]
;W[fd]
;B[gd]
;W[gc]
;B[hd]
;W[hc]
;B[ic]
;W[cc]
;B[id]
;W[bb]C[This is the problem position. White to play.]
;B[]
;W[gb]C[The empty triangle is correct as it gives white the
most liberties.]
(;B[fa]C[If black thinks this is a counter-tesuji...]
;W[ea]
;B[eb]
;W[ib]
;B[jb]
;W[ha]C[... then white makes an eye and black cannot 
capture white.]
(;B[fb]
;W[cb]
;B[ja]
;W[ga])
(;B[da]
(;W[ca]
;B[ga]C[Though white has to be careful as black can get an eye too])
(;W[fb]
;B[ja]
;W[ca]
;B[ia]
;W[cb]C[Black is captured with no eye])))
(;B[fb]C[If black stries his own empty triangle...]
;W[fa]
;B[eb]
;W[ib]
;B[ha]
;W[ia]
;B[jb]
;W[cb]
(;B[ja]
;W[da]C[... then white's threat to make an eye slows black down
and black gets captured still.])
(;B[ga]
;W[hb]
;B[ga]
;W[da]C[This doesn't work for black either.])))
