(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]AW[qo][qp][nq][pq][or]AB[pm][qn][po][pp][oq]C[black to get the best local result]
(;B[qq]CR[qq]
;W[op]CR[op]
(;B[qr]CR[qr]C[RIGHT
black firmly takes the corner])
(;B[rq]LB[qr:A]CR[rq]C[this is better played at A. black has no weakness])
(;B[pr]CR[pr]C[this ko is an unnecessary burden for black])
(;B[rr]CR[rr]
;W[qr]CR[qr]
;B[rq]CR[rq]C[black helps white get shape])
(;B[oo]CR[oo]
;W[rq]CR[rq]
;B[qr]CR[qr]
;W[rr]CR[rr])
(;B[no]CR[no]
;W[oo]CR[oo]
;B[pn]CR[pn]
;W[rq]CR[rq])
(;B[rp]CR[rp]
;W[qr]CR[qr]C[white gets good shape in the corner. black can do better.]))
(;B[op]CR[op]
;W[qr]CR[qr]C[white rejoices in your foolishness])
(;B[np]CR[np]
;W[op]CR[op]C[this is hopeless])
(;B[rn]CR[rn]
;W[qr]CR[qr]C[good for white])
(;B[rq]CR[rq]
;W[qq]CR[qq]C[unimpressive])
(;B[qr]CR[qr]
;W[qq]CR[qq]C[this is not a tesuji])
(;B[rr]CR[rr]
;W[qr]CR[qr]C[eh?])
(;B[nr]CR[nr]
;W[op]CR[op]C[going nowhere])
(;B[on]CR[on]
;W[op]CR[op])
(;B[ro]CR[ro]
;W[qr]CR[qr])
(;B[pr]CR[pr]
;W[qq]CR[qq]
;B[op]CR[op]
;W[mr]CR[mr]C[white has a swell position])
(;B[mq]CR[mq]
;W[op]CR[op])
(;B[no]CR[no]
;W[op]CR[op]))