(;CA[Windows-1252]GM[1]AB[no][np][pp][jq][nq][pr][pq][ir][ln][mn][lo][oo][po][jp]
[kp][lp][mp]AW[rq][jr][nr][or][rr][js][rs][lm][mm][nm][pm][jn][kn][qn][io][ro][op]
[rp][eq][fq][gq][hq][kq][lq][mq][oq]PL[B]C[Diagram from http\://lifein19x19.com/

]
AP[GoWiki:2009]SZ[19]FF[4]GN[]DT[2011-08-13]PC[http\://lifein19x19.com/]MULTIGOGM[1]
;B[os]C[There is death in the hane]
(;W[ms]C[only way];B[ps]C[this is probably a bit of a blind spot for many players.]
;W[iq];B[ks]C[The final tesuji. White must prevent black from capturing two stones. There are four answers, but white cannot avoid running into damezumari with any of them]
(;W[kr];B[mr];W[lr];B[ns];W[mr];B[is])
(;W[ls];B[mr];W[lr];B[ns])
(;W[lr];B[ns];W[mr];B[kr];W[ls];B[ks];W[kr];B[is])
(;W[hr];B[kr];W[is];B[mr];W[lr];B[ns]))
(;W[mr]C[this fails easily];B[ls]
(;W[kr];B[iq])
(;W[iq];B[kr]
(;W[lr];B[is])
(;W[hr];B[ns]))))