(;AB[qd]AW[dd]AB[pq]AW[oc]AB[dp]AW[po]AB[qo]AW[qn]AB[qp]AW[pn]AB[md]AW[oe]AB[pf]AW[oq]AB[or]AW[pp]AB[qr]AW[nq]AB[nr]AW[lq]AB[pc]AW[pi]AB[of]AW[pb]AB[pk]AW[ok]AB[qb]AW[mc]AB[lc]AW[ld]AB[me]AW[kc]AB[lb]AW[kb]LB[kb:A]C[white just played A. how to answer?]AP[goproblems]
(;B[mb];W[ke]
(;B[nc]C[now white may not answer a peep at K16.])
(;B[nb]C[better to take, this leaves aji])
(;B[le];W[kd]C[aji keshi])
(;B[jd];W[kd]
(;B[nc]C[RIGHT])
(;B[nb]C[this leaves aji])))
(;B[kd];W[le]C[the black atari was bad])
(;B[le];W[kd]C[this helps white fix the shape. now you die])
(;B[nc];W[mb]C[giving up these stones is really bad])
(;B[nb];W[mb])
(;B[jb];W[mb])
(;B[ob];W[mb])
(;B[ke];W[mb])
(;B[fc];W[mb])
(;B[ol];W[mb])
(;B[pj];W[mb])
(;B[od];W[mb]))