(;AB[dr]AB[er]AB[eq]AB[gq]AB[hq]AB[hr]AB[ir]AW[cr]AW[dq]AW[ep]AW[cp]AW[eo]AW[go]AW[hp]AW[ip]AW[iq]AW[jr]AW[kr]AW[kp]AB[js]AB[gs]TR[gs]C[Black just played the triangle stone. White to kill.]AP[goproblems]
(;W[fr];B[fq]
(;W[ds];B[is]
(;W[es];B[fs])
(;W[fs];B[es]))
(;W[is];B[ds];W[fs]C[:-)RIGHT])
(;W[fs];B[is]))
(;W[ds];B[fr]TR[es]TR[is])
(;W[is];B[fr])
(;W[fq];B[fr]))