(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]AW[ln][mn][nn][on][pn][qn][rn][sn][lo][lp][lq][lr][ls][ms]AB[mo][no][oo][po][qo][ro][so][mp][mq][mr]LB[ms:1]C[White 1 is huge and black should have not allowed it, if possible. However, now that it's done, minimize the damage.]
(;B[or]CR[or]
;W[os]CR[os]
(;B[ps]CR[ps]
;W[ns]LB[ms:1]CR[ns]C[RIGHT
This minimizes the damage, but white got at least 6 points in sente (black still has to defend the Q2 cutting point, plus white can still push at O2, getting an extra point). This is why white 1 is so dangerous.])
(;B[pr]CR[pr]
;W[ps]CR[ps])
(;B[nr]CR[nr]
;W[ns]CR[ns]C[Black can't block at Q1 anymore.])
(;B[ns]CR[ns]
;W[nr]CR[nr]
(;B[nq]CR[nq]
;W[ns]CR[ns]C[Black can't block at Q1 anymore.])
(;B[ps]CR[ps]
;W[ns]CR[ns]
(;B[pr]CR[pr]
;W[nq]CR[nq]C[Too good for white.])
(;B[nq]CR[nq]
;W[pr]CR[pr])
(;B[pq]CR[pq]
;W[oq]CR[oq]C[Too good for white.])
(;B[qr]CR[qr]
;W[oq]CR[oq]C[Too good for white.])
(;B[oq]CR[oq]
;W[pr]CR[pr]))
(;B[oq]CR[oq]
;W[pr]CR[pr])))
(;B[ns]CR[ns]
;W[nr]CR[nr]
(;B[or]CR[or]
;W[os]CR[os]
(;B[ps]CR[ps]
;W[pr]CR[pr]C[This hanami-ko is too good for white (the worst-case scenario is that the whole black corner dies, while white does not risk anything at all).])
(;B[nq]CR[nq]
;W[ns]CR[ns]C[Black can't block at Q1 anymore.])
(;B[oq]CR[oq]
;W[pr]CR[pr])
(;B[pr]CR[pr]
;W[ps]CR[ps]C[Too good for white.]))
(;B[os]CR[os]
;W[or]CR[or])
(;B[nq]CR[nq]
;W[or]CR[or]))
(;B[os]CR[os]
;W[or]CR[or]
(;B[nr]CR[nr]
;W[ns]CR[ns]C[Too good for white.])
(;B[pr]CR[pr]
;W[nr]CR[nr]C[Too good for white (white reduced more than necessary and there's really bad aji at Q3).])
(;B[ps]CR[ps]
;W[pr]CR[pr])
(;B[ns]CR[ns]
;W[nr]CR[nr]))
(;B[nr]CR[nr]
;W[ns]CR[ns]C[This helps nothing. It's the same situation, but losing 2 extra points.])
(;B[pr]CR[pr]
;W[os]CR[os]C[Interesting attempt, but this is not the best answer.])
(;B[ps]CR[ps]
;W[or]CR[or]C[Interesting attempt, but this is too good for white.]))
Warp