(;AB[er]AB[fs]AB[gr]AB[gq]AW[hs]AW[hr]AW[ir]AW[iq]AW[jq]AW[kq]AW[lq]AW[ls]AB[hq]AB[ip]AB[hp]AB[jp]AB[kp]AB[lp]AB[mp]AB[mq]AB[mr]AB[ns]AB[or]AB[jr]AB[ks]AW[lr]LB[jn:Tenuki]C[White's best move.]AP[goproblems] (;W[js]C[FORCE];B[is]LB[jn:Ko Threat] (;W[kr]C[White gets an unconditional life. Good job!RIGHT]) (;W[jn]C[FORCE];B[kn];W[js]C[FORCE];B[in];W[kr]C[White could live unconditionally.CHOICE])) (;W[kr]C[FORCE];B[js]C[White is dead.]) (;W[jn]C[White can live.CHOICE]) (;W[is]C[FORCE];B[js]C[White is deadCHOICE]))