(;GM[1]FF[4]SZ[19]
GN[Counter hane - empty triangle]
PC[http://senseis.xmp.net/?DieterVerhofstadt/GoTheoryBasicTechniqueFollowUp]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?DieterVerhofstadt/GoTheoryBasicTechniqueFollowUp

Counter hane - empty triangle]
PL[B]

AB[ii]
AW[hk]
CR[ii]
LB[hl:a]

;B[ik]C[B1]MN[1]
;W[il]C[W2]MN[2]
;B[hj]C[B3]MN[3]
;W[jk]C[W4]MN[4]
;B[ij]C[B5]MN[5]
;W[jl]C[W6]MN[6]

;CR[ii]
LB[hl:a]
)
