(;AW[ho]AW[lo]AW[ip]AW[jp]AW[kp]AW[gq]AW[hq]AW[jq]AW[lq]AW[mq]AW[er]AW[gr]AW[mr]AW[or]AB[iq]AB[kq]AB[hr]AB[jr]AB[lr]AB[hs]AB[is]AB[js]AB[ks]AB[ls]LB[hm:A]LB[jm:U]LB[lm:D]C[What is the status of the black group? Select A for 'alive', U for 'unsettled', or D for 'dead'FORCE]
(;B[hm];W[ir]LB[jm:K]C[OK, so defend it! If you need a ko threat, play at K.]
(;B[gs];W[fs]C[Wrong, you cannot get out.])
(;B[fs];W[es]C[Wrong, you cannot get out.])
(;B[ms];W[ns]C[Wrong, you cannot get out.])
(;B[ns];W[os]C[Wrong, you cannot get out.])
(;B[jm];W[jl]C[White answers the threat.];B[iq];W[kr]C[White just takes the other ko as her threat. If you win this one, she'll just take the first one again because you can never connect it. You will eventually run out of threats.]))
(;B[jm];W[jn]C[Wrong, you have no useful local moves. Try one and see what happens.]
(;B[gs];W[fs]C[No, you can't get out.])
(;B[fs];W[es]C[No, you can't get out.])
(;B[ms];W[ns]C[No, you can't get out.])
(;B[ns];W[ms]C[No, you can't get out.])
(;B[ir];W[gs]C[Dead.])
(;B[kr];W[ms]C[Dead.]))
(;B[lm]C[Bingo. You can't do anything. Navigate the 'alive' branch to see why.RIGHT]))