(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[백 Cho Hye Yeon 9p]PB[Badukmovies]
;B[pd]
;W[dd]
;B[qp]
;W[dp]
;B[oq]
;W[qf]
;B[nc]
;W[rd]
;B[qg]
;W[pg]
;B[qh]
;W[pf]
;B[qc]
(;W[pi]
;B[qj]
;W[qi]
;B[ri]
;W[pj]C[Let's delve into the difficult jeongsuk! 
]
(;B[rj]C[If black connects here...
]
;W[pk]
;B[rf]
;W[re]
;B[rg]
;W[ph]
(;B[qe]
;W[rc]
;B[qb]
;W[qk]
;B[rk]
;W[rl]
;B[sk]
;W[lc]C[Black lost the initiative. Whtie will control the whole board with the immense influence!
])
(;B[ql]
;W[rc]
;B[kc]LB[qe:A]C[This is also a possible variation but white feels good. The cut at A does not work for black.
]))
(;B[qk]
;W[rj]
;B[rh]
;W[rk]C[This is what we should know!!
]
;B[rf]
(;W[ql]
;B[ph]
;W[oh]
;B[og]
;W[nh]
;B[of]C[Well, many professionals feel that black's territory is better than white's influence.
])
(;W[re]
;B[ph]
;W[oh]
;B[sg]C[This is the jeongsuk. (Let's see...) ]
(;W[ql]
;B[og]
;W[nh]
(;B[of]
;W[qe]C[A little bit difficult for us(for me as well), but we can make it! 
]
(;B[pe]
;W[si]
;B[rc]
;W[sj]
;B[sh]
;W[sf]
;B[se]
;W[sd]C[Oh, black has no ko threat early in the opening. White smiles! 
])
(;B[si]C[Black should live like this! 
And then...
]
;W[oe]
;B[mg]
;W[pe]
;B[mf]
;W[me]C[The situation is risky.
]
;B[md]
;W[oc]C[This is a great tesuji.
]
(;B[od]
;W[ne]
;B[le]
;W[nd]
;B[mc]
;W[pc]C[White succeeds! 
])
(;B[ob]
;W[od]
;B[pb]
;W[le]C[Black cannot attack white.
])))
(;B[ng]C[This move is much better for black.
]
(;W[mg]
(;B[oe]C[This move looks natural, but is actually not good.]
;W[qe]
;B[si]C[Black finds life! And then...
]
;W[of]
;B[nf]
;W[ne]
;B[mf]
;W[me]
;B[lf]
;W[od]
;B[oc]
;W[pe]
;B[le]
;W[md]
;B[kc]C[Difficult! 
]
;W[mc]
;B[kb]
;W[mb]
;B[rc]
;W[sd]C[White is in danger, but black cannot be relieved as well.
])
(;B[nf]C[Black should play here.
]
;W[qe]
;B[mh]C[This cut is sente(seonsu in Korean).
]
(;W[si]
;B[ni]
;W[oi]
;B[pk]
;W[oj]
;B[pl]C[White is totally destroyed.
])
(;W[pk]
;B[si]
;W[ne]
;B[mf]
;W[me]
;B[lg]C[Black controls the battle.
])))
(;W[oe]
;B[mh]
;W[pk]
;B[si]
;W[nd]
;B[mc]
;W[mg]
;B[mf]
;W[lg]
;B[nf]
;W[lf]
;B[me]
;W[md]
;B[le]
;W[ld]
;B[ke]C[Well, who do you think is best?
I don't know...
])))
(;W[si]C[This move is very interesting! 
]
(;B[ql]C[Extending here does not work.]
;W[rl]
;B[qm]
;W[sj]
;B[sh]
;W[se]C[Black's desperation!

])
(;B[rl]
;W[ql]
;B[pk]
;W[rm]C[This is something very interesting (this is a process of jeongsuk).
]
;B[og]
(;W[ni]
(;B[of]
;W[qe]C[And then...
]
;B[rc]
;W[sd]C[This is a tesuji that we should remember.
]
(;B[sf]
;W[sl]
;B[pe]
;W[sj]C[Black's hallucination!
])
(;B[pe]
;W[sl]
;B[qd]
;W[sf]C[Difficult...
]))
(;B[ok]
;W[mi]
;B[of]
;W[qe]
;B[rc]
;W[sd]C[It is hard to believe, but this is a contemporary jeongsuk(source from pros' study session) .
])
(;B[qe]C[If black cuts here...
]
;W[of]
;B[ng]
;W[nf]
;B[nh]
;W[oi]
;B[mi]
;W[nj]
;B[rc]
;W[lf]C[White is not bad at all!
]))
(;W[oi]
;B[of]
;W[ol]
;B[qe]C[This is also a jeongsuk.
]
;W[dj]
;B[pl]C[Note that black can't run out.]
;W[pm]
;B[qm]
;W[ok]
;B[ql]
;W[qn]C[Black is captured]))
(;B[og]C[This cut is another possibility.]
;W[ni]
;B[rl]
;W[ql]
;B[pk]
;W[rm]
(;B[pl]
;W[sl]
;B[qm]C[This move wants white to...
]
(;W[sj]C[...connect here. White is in danger.
]
;B[rl]C[White has no ko threat.
])
(;W[rl]C[White should connect here.
]
;B[sj]
(;W[pm]
;B[nj]
;W[mi]
;B[ok]
;W[oi]
;B[qn]C[Well, white is dead.
]
;W[rn]
;B[ro]
;W[sn]
;B[qe]
;W[of]
;B[rc]
;W[pn]
;B[qo]
;W[nl]
;B[mj]
;W[lj]
;B[mk]C[This is a false-seki(bik in Korean).
])
(;W[qn]
;B[pm]
;W[pn]C[White has to play in this way.
])))
(;B[ok]
;W[mi]
;B[of]
;W[qe]
;B[rc]
;W[sd]LB[sf:A]C[Trust me: this is a contemporary jeongsuk! There will be a ko fight at A.
]))
(;B[oi]C[Cutting here is not good for black
]
;W[ql]
;B[ni]
;W[ok]
;B[og]
;W[nh]
(;B[mh]
;W[ng]
;B[of]
;W[mi]C[White is able to fight.
]
;B[mj]
;W[li]
;B[nj]
;W[qe]
;B[rc]
;W[sj]
;B[sh]
;W[se]C[Black dies.
])
(;B[qe]C[Cutting here is not good.]
;W[mi]
;B[of]
;W[nj]C[White's influence is astonishing!
]))))))
(;W[ph]C[Last week we mostly had a look at this move.]
;B[qj]
;W[qi]
;B[ri]
;W[pi]
;B[pj]))
