(;AB[on]AB[om]AB[ol]AB[qm]AB[ql]AB[rl]AB[sm]AB[sk]AB[rj]AB[ri]AB[qj]AB[pj]AB[oj]AB[nj]AB[ni]AB[nh]AB[qg]AB[qf]AB[qe]AB[pd]AB[od]AB[oc]AW[rk]AW[qk]AW[pk]AW[ok]AW[nk]AW[mk]AW[mj]AW[mi]AW[mh]AW[mg]AW[ng]AW[oi]AW[oh]AW[ph]AW[pg]AW[pf]AW[pe]AB[og]AB[of]AW[qi]AW[rm]AW[rn]AW[qn]AW[pn]AW[pm]AW[po]AW[oo]AW[no]AW[nn]AW[mm]AW[nl]AB[ne]LB[pb:YES]LB[rb:NO]TR[ol]TR[om]TR[on]C[Can Black safe those three marked stones? Yes or No?]AP[goproblems]
(;B[pl]C[NOTTHIS])
(;B[pb]C[FORCE];W[rb]C[Try it!];B[pl]C[FORCE];W[nm];B[sl];W[sj];B[si];W[sn];B[sj];W[rh]
(;B[qh];W[sh]C[Painfull! ... You can not safe those three stones!CHOICE]TR[ol]TR[om]TR[on])
(;B[sh];W[sg]C[You cannot safe those three stones!CHOICE])
(;B[pi];W[sh]C[NopeCHOICE]))
(;B[sl]C[NOTTHIS])
(;B[sj]C[NOTTHIS])
(;B[si]C[CHOICENOTTHIS])
(;B[qh]C[CHOICENOTTHIS])
(;B[rh]C[CHOICENOTTHIS])
(;B[sh]C[CHOICENOTTHIS])
(;B[rg]C[CHOICENOTTHIS])
(;B[sg]C[CHOICENOTTHIS])
(;B[pi]C[NOTTHIS])
(;B[rf]C[CHOICENOTTHIS])
(;B[sf]C[CHOICENOTTHIS])
(;B[sn]C[NOTTHIS])
(;B[nm]C[NOTTHIS])
(;B[pc]C[NOTTHIS])
(;B[qc]C[NOTTHIS])
(;B[qb]C[NOTTHIS])
(;B[rc]C[NOTTHIS])
(;B[sc]C[NOTTHIS])
(;B[sb]C[NOTTHIS])
(;B[ra]C[NOTTHIS])
(;B[sa]C[NOTTHIS])
(;B[qa]C[NOTTHIS])
(;B[pa]C[NOTTHIS])
(;B[ob]C[NOTTHIS])
(;B[oa]C[NOTTHIS])
(;B[qd]C[CHOICENOTTHIS])
(;B[rd]C[NOTTHIS])
(;B[sd]C[NOTTHIS])
(;B[re]C[NOTTHIS])
(;B[se]C[NOTTHIS])
(;B[oe]C[CHOICENOTTHIS])
(;B[nf]C[CHOICENOTTHIS])
(;B[rb]AB[pd]AB[od]AB[oc]C[Show me!FORCE];W[pl]AW[on]AW[om]AW[ol]AW[ql]AW[rl]AB[rn]AB[rm]AB[pm]AB[pn]AW[qm]AB[qn]AB[po]AB[oo]AB[no]AB[nn]AB[nl]AB[mm]AW[sm]AW[sk]AB[rk]AB[qk]AB[pk]AB[ok]AW[rj]AW[ri]AB[qi]AW[qj]AW[pj]AW[oj]AB[nk]AB[oi]AB[oh]AB[ph]AB[pg]AB[pf]AB[pe]AB[mk]AW[nj]AW[ni]AW[nh]AB[mj]AB[mi]AB[mh]AB[mg]AB[ng]AW[og]AW[of]AW[ne]AW[od]AW[pd]AW[oc]AW[qe]AW[qf]AW[qg]C[Show me!]
(;B[nm];W[sl];B[sj];W[si]
(;B[sn];W[sj];B[rh];W[qh];B[sh];W[pi];B[qi]C[YEAH!RIGHT])
(;B[rh];W[qh];B[sn];W[sj];B[sh];W[pi];B[qi]C[RIGHT]))
(;B[sj];W[si]
(;B[nm];W[sl]
(;B[sn];W[sj];B[rh];W[qh];B[sh]C[Right!RIGHT];W[pi];B[qi]C[RIGHT])
(;B[rh];W[qh];B[sn];W[sj];B[sh];W[pi];B[qi]C[RIGHT]))
(;B[sn];W[sj]
(;B[nm];W[sl];B[rh];W[qh];B[sh];W[pi];B[qi]C[RIGHT])
(;B[rh];W[qh];B[nm];W[sl];B[sh];W[pi];B[qi]C[RIGHT]))
(;B[rh];W[qh]
(;B[nm];W[sl];B[sn];W[sj];B[sh];W[pi];B[qi]C[RIGHT])
(;B[sn];W[sj];B[nm];W[sl];B[sh];W[pi];B[qi]C[RIGHT])))
(;B[sn];W[sj]
(;B[nm];W[sl];B[rh];W[qh]C[No, not this way!CHOICE])
(;B[sl]C[No, you can kill without KO!CHOICE])))
(;B[na]C[NOTTHIS])
(;B[nb]C[NOTTHIS])
(;B[nc]C[NOTTHIS])
(;B[nd]C[CHOICE])
(;B[ma]C[NOTTHIS])
(;B[mb]C[NOTTHIS])
(;B[mc]C[NOTTHIS])
(;B[md]C[NOTTHIS])
(;B[me]C[NOTTHIS])
(;B[mf]C[NOTTHIS]))