(;C[black just played the marked stone. White to kill]AW[ll]AW[ml]AW[nl]AW[ol]AW[pl]AW[gm]AW[hm]AW[im]AW[jm]AW[km]AW[lm]AW[pm]AW[fn]AW[kn]AW[mn]AW[pn]AW[qn]AW[fo]AW[ho]AW[io]AW[ko]AW[qo]AW[pp]AW[hq]AW[iq]AW[mq]AW[oq]AW[pq]AW[ir]AW[jr]AW[nr]AW[or]AW[js]AW[ks]AW[ns]AB[mm]AB[nm]AB[om]AB[in]AB[jn]AB[ln]AB[on]AB[jo]AB[lo]AB[mo]AB[oo]AB[po]AB[ip]AB[kp]AB[np]AB[op]AB[jq]AB[kq]AB[nq]AB[kr]AB[mr]AB[ls]AB[ms]TR[mo]PL[2] (;W[nn];B[lr] (;W[lp];B[no] (;W[mn];B[jp] (;W[hp]C[ shortage of liberties. black is deadRIGHT]) (;W[hn]C[ shortage of liberties. black is deadRIGHT])) (;W[nn];B[jp] (;W[hp]C[ shortage of liberties. black is deadRIGHT]) (;W[hn]C[ shortage of liberties. black is deadRIGHT]))) (;W[mp];B[no];W[lp];B[lq]) (;W[lq];B[lp])) (;W[lr];B[nn]C[white may catch the stones on the left by playing M4 but black is alive]) (;W[mp];B[lr] (;W[nn];B[no];W[lp];B[lq]) (;W[lp];B[lq]) (;W[lq];B[lp])) (;W[lq];B[lr] (;W[nn];B[lp]) (;W[lp];B[mp]) (;W[mp];B[lp])) (;W[no];B[nn]) (;W[lp];B[nn]))