(;AB[fs]AB[fr]AB[gq]AB[gp]AB[hp]AB[ip]AB[jp]AB[jq]AB[kr]AB[ks]AW[es]AW[er]AW[fp]AW[eq]AW[eo]AW[go]AW[ho]AW[io]AW[ko]AW[kp]AW[kq]AW[lr]AW[ls]AW[mq]AW[kn]AW[fq]AW[hr]C[White just played H2, a mistake. Save your group!]LB[hr:1]AP[goproblems]
(;B[ir];W[gr]TR[hq]TR[is])
(;B[gr]
(;W[ir]C[CHOICE];B[jr];W[js]
(;B[is];W[hs]C[Oh no! You fell for white's trick. If you fill in at K1, white kills at H3. But if you don't, white gets a thousand-year ko.]MA[js])
(;B[hs];W[is]LB[mn:T]C[(T)enuki?]
(;B[gs]C[Seki. :)RIGHT])
(;B[hq];W[gs]C[Ko. :(])
(;B[iq];W[gs]C[Ko. :(])
(;B[mn];W[gs]C[White gets a thousand-year ko. :(])))
(;W[jr]C[CHOICE];B[ir];W[is];B[hs];W[gs]
(;B[js];W[jr]C[?!]
(;B[hs];W[iq]C[:O])
(;B[hq];W[iq]C[Ko.]))
(;B[hq];W[iq];B[hs]MA[gs]MA[ir]C[Black lives in double ko, and white gets some points at L2. Everyone is happy.RIGHT]))))
