(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]
;B[pd]
;W[qf]
(;B[nc]
(;W[of]C[When white jumps, black usually defends..]
(;B[rd]C[A common move.
]
(;W[md]
;B[nd]
;W[me]
;B[lb]C[White can afterwards flatten black a bit])
(;W[pj]
;B[pp]
;W[re]C[When white attaches here...
]
(;B[qe]
;W[rf]
;B[ne]LB[qc:A]C[Black plays in this way, focusing on the center as well as the territory in the corner.
This move prevents the white invasion at A
]
;W[sd]LB[sc:A]C[Remember this endgame from episode 36? Blocking at A is ok even though white can live in the corner.])
(;B[qc]C[This is not good.
]
;W[lc]
;B[nq]
;W[nb]
;B[ob]
;W[nd]C[It is painful to black
])))
(;B[qe]C[This move is not good.
Usually..
]
;W[rf]
;B[pp]
(;W[od]
;B[oc]
;W[qc]C[This is the right order of moves.
]
(;B[oe]
;W[re]
;B[nf]
;W[og]
;B[jd]C[The following sequence. White takes the corner])
(;B[re]
;W[pe]
;B[pc]
;W[qd]C[Black is bad.
])
(;B[pc]
;W[qd]
;B[pe]
;W[re]C[White is better.
])
(;B[qd]
;W[pc]
;B[oe]LB[rd:A]C[White could consider connecting at A, but there is a better move available!]
;W[nd]
;B[ne]
;W[md]
;B[rc]
;W[rb]
;B[rd]
;W[mc]
;B[ob]
;W[pa]
;B[mb]
;W[na]
(;B[lb]
;W[nb])
(;B[qa]
;W[pb]C[Black is dead.
])
(;B[nb]
;W[lb]
;B[lc]
;W[ld]
;B[kc]
;W[ma]C[Black is dead.
])))
(;W[qc]C[Don't play here immediately, wrong order of moves.]
;B[re]
(;W[od]
;B[oe]
;W[ne]
;B[pe]C[White is not good.
])
(;W[pe]
;B[qd]
;W[od]
;B[pc]
;W[oc]
;B[ob]
;W[nd]
;B[nb]
;W[ld]C[One of the variations - black is fine.
])))
(;B[dp]C[What can happen when black plays tenuki?]
;W[qc]
;B[qd]
;W[pc]
(;B[oc]
;W[rd]
;B[re]
;W[rc]
;B[qe]
;W[rf]
(;B[se]C[An overplay.]
;W[od])
(;B[oe]C[So black should play here..]
;W[se]
;B[nf]
;W[og]))
(;B[od]
(;W[ob]LB[rd:A]C[Also possible, if you dont want to hurt your position the right side too much with the hane at A.])
(;W[rd]
;B[re]
;W[rc]
;B[qe]
;W[rf]
;B[sf]
;W[dd]
;B[ob]
;W[pb]C[White lives]))
(;B[rc]LB[qh:A]C[Also possible, especially when black has a stone at A to connect to.]
;AB[qh]LB[qh:A]
;W[rb]
;B[rd]
;W[nb]
;B[od]
;W[mc]
;B[ob]
;W[oc]
;B[nd]
;W[pb]C[Like this for example.]
(;B[rf]C[There is a better move!])
(;B[qg]LB[pf:B][rf:A]C[What a move!]))))
(;W[pj]
;W[qc]C[Invading here is big.]
;B[qd]
;W[rd]
(;B[re]
;W[rc]
;B[qe]
;W[ob]
;B[nb]
;W[oc]
;B[od]
(;W[pc]
;B[me]C[A famous jeongseok(joseki)
])
(;W[nd]
;B[lc]
;W[md]
(;B[pf])
(;B[oa]
;W[pc]
;B[pf]
;W[ld]
;B[kc]
;W[pa]
;B[kd]C[Black is fine.
]))
(;W[rf]C[If white plays here.. it's overplayish
]
;B[sf]
;W[nd]
;B[lc]
;W[of]
;B[pf]
;W[pg]
;B[nf]C[This is good.
]
;W[md]
;B[og]
;W[pe]
;B[oe]
;W[pf]
;B[ne]C[Black leads the situation.
]))
(;B[pc]
;W[rb]
;B[qb]
;W[rc]
;B[kc]C[One of the variations
])))
(;B[qe]C[When black exchanges this first, white will jump in different ways.]
;W[pf]
;B[nc]
(;W[ne]
(;B[md]C[A common response, but not the best move]
;W[od]
;B[oc]
;W[qc]
;B[pc]
;W[re]
;B[qd]
;W[rd]
;B[rc]C[White's success.
])
(;B[nd]C[Best black response.]
;W[me]
;B[kc]
(;W[qc]
;B[re]
(;W[ob]
;B[nb]
;W[oc]
;B[od]
;W[rb]
;B[sc]
;W[sb]
;B[oa]C[White in the corner is dead.
])
(;W[pc]
(;B[od]C[Not good.]
;W[ob]
;B[sb]
;W[rb]
;B[sc]
;W[nb]
;B[mb]
;W[mc]C[Black has a bad aji.
])
(;B[oc]C[Good move. White dies.]
;W[oe]
;B[od]
;W[ob]
;B[nb]
;W[na]
;B[sb]C[Black can kill white.
])))
(;W[rc]C[Later, white has such a move like this.
]
(;B[rd]
(;W[qc]
;B[rf]
;W[ob]
;B[nb]
;W[oc]
;B[od]
;W[pc]
;B[qh]C[Black is better. Although white lives
])
(;W[rf]
;B[qc]C[Both are satisfied with this result.
]))
(;B[re]
;W[ob]C[This move is working.
]
(;B[qb]
;W[qc]
;B[pb]
;W[oc]
;B[pc]
;W[od]
;B[oe]
;W[pe]C[White's success.])
(;B[pb]
;W[oc]
;B[pc]
;W[od]C[White is good.
])
(;B[pc]
;W[pb]
(;B[qb]C[Not good, while lives]
;W[qc]
;B[rb]
;W[ra]
;B[qa]
;W[sb]C[Looks like ko, but no!]
;B[sa]
;W[sc]C[White is alive.
]
;B[ra]
;W[nb]
;B[mb]
;W[na])
(;B[nb]C[This sets up a ko]
;W[oa]
;B[qa]
;W[ra]
;B[rb]
;W[sb]C[W can set up a ko fight.
]))
(;B[nb]C[Also makes ko]
;W[pc]
;B[oc]
;W[qb]C[W can set up a ko fight.
]))))
(;B[dp]
(;W[oc]C[This move is not good.
]
;B[od]
;W[nd]
;B[mc]
(;W[pc]
;B[qc]
;W[qb]
;B[rb]
;W[rc]
;B[qd]
;W[ra]
(;B[pb]C[Black should let white live.]
;W[sb]
;B[ob]C[Black's much better.
])
(;B[sb]C[Overplay.]
;W[sc]
;B[pb]
;W[sa]
;B[ob]
;W[sf]C[Black's loss in the corner

]))
(;W[qc]
;B[pc]
;W[re]
;B[qd]
;W[rd]
;B[rc]C[Black is ahead.
]))
(;W[ld]C[White can play here or
])
(;W[mc]C[This one is also great.
]
(;B[mb]
;W[oc]
;B[od]
;W[nd]
;B[nb]
;W[qc]
;B[pc]
;W[re]
;B[qd]
;W[rd]
;B[rc]
;W[lc]C[White's success
])
(;B[nd]
;W[md]
;B[me]
;W[nf]
;B[le]
;W[nb]
;B[ob]
;W[mb]C[W is fine
]
(;B[kc]
;W[oc]
;B[od]
;W[pc]
;B[pb]
;W[qc]
;B[qb]
;W[rc]
;B[rb]
;W[sd]
;B[re]
;W[rf]
;B[se]
;W[pe]C[B is destroyed.
])
(;B[rf]
;W[rg]
;B[re]
;W[pb]C[This move is vexing
]))))
(;B[lc]C[Not ideal, there is aji in the corner still.]
;W[od]
;B[oc]
;W[qc]
;B[pc]
;W[re]
;B[qd]
;W[rd]
;B[rc]C[White's success
])
(;B[rf]C[Protects the corner, but leaves the upper side open.]
;W[rg]
;B[re]
;W[ld]C[One of the variations
]
;B[pp]
;W[oc]C[Later on, this attachment is greatly working.
]
;B[od]
;W[nd]
(;B[ob]
;W[mc]
;B[nb]C[The following sequence
])
(;B[mc]
;W[ob]
;B[lc]
;W[rc]C[Black is in trouble
])))
(;W[mf]C[If black plays elsewhere...
]
(;B[md]C[This is correct.

]
;W[od]
;B[oc]
;W[qc]
;B[re]
;W[pc]
;B[oe]C[There's no way that white can invade in the corner.
])
(;B[ld]C[This is not good.
]
(;W[jc]C[Ouch
])
(;W[qc]
;B[re]
;W[mc]
;B[md]
;W[oc]
;B[od]
;W[nb]
;B[nd]
;W[ob]
;B[lc]
;W[rb]C[White lives]))
(;B[ne]
;W[nf]C[Sometimes black plays here only when he wants to take sente. Locally the exchange is painful for black
])
(;B[rf]
;W[rg]
;B[re]C[It is also possible.
])
(;B[pp]
;W[od]
;B[oc]
;W[qc]
;B[pc]
;W[re]
;B[qd]C[This is the following sequence.
]))
(;W[od]C[White can also play this immediately]
(;B[oc]C[This is the only move to consider.
]
;W[qc]
(;B[pc]C[Passive!
]
;W[re]
(;B[rd]
;W[qd]
;B[rc]
;W[pe]
;B[qb]C[White's success.
])
(;B[qd]
;W[rd]
;B[rc]C[White's success.
]))
(;B[qd]C[Possible when the ladder is good for black.]
;W[pc]
;B[oe]C[White can play it only when the ladder is favorable to white.
])
(;B[re]
;W[pc]C[This fight is favorable to white, but black plays it under the certain condition.
]
;B[rf]
;W[nd]
;B[mc]
(;W[qh]
;B[rg]
;W[pi]
;B[pe]
;W[of]
;B[rc]
;W[rb]
;B[rd]C[One of the variations
])
(;W[md]C[In most cases, white plays in this way.
]
;B[lc]
;W[rg]
;B[rh]
;W[qg]
;B[sg]
;W[qi]C[Black is not good.
])))
(;B[pc]C[This is passive.
]
;W[re]
;B[rd]
;W[pe]
;B[qd]C[White humiliates black.
]))
(;W[qc]C[If white plays here..
]
(;B[pc]
;W[re]
;B[qd]C[This makes no sense. White is better.
])
(;B[re]
(;W[pc]
(;B[oc]
;W[od]C[Sometimes white can play here when the surroundings are good.
]
(;B[pe]
;W[oe]
;B[of]
;W[md]C[A difficult fight for black
])
(;B[rf]
;W[nd]
;B[md]
;W[mc]
;B[mb]
;W[lc]
;B[pb]
;W[qb]
;B[lb]
;W[kc]
;B[kb]
;W[jc]
;B[ob]
;W[qh]C[White is fine.
]))
(;B[od]
;W[ob]
;B[nb]
;W[rb]C[Black is not bad.
]))
(;W[ob]
(;B[nb]
;W[oc]
;B[od]
(;W[rb]
;B[nf]
;W[na]C[One of the variations
])
(;W[nd]
;B[lc]
;W[ne]
;B[pc]
;W[pb]
;B[rc]
;W[rb]
;B[qd]
;W[qb]
;B[rf]C[W is in danger.
]))
(;B[pc]
;W[pb]
;B[rc]
;W[oc]
;B[od]
;W[mc]
(;B[nd]
;W[nb]
;B[qb]C[Black can play it as well
])
(;B[nb]
;W[nd]
;B[mb]
;W[rb]
;B[qd]
;W[qb]
;B[sb]
;W[md]
;B[lc]
(;W[oe])
(;W[ld]
;B[kc]
;W[oe]C[Black's corner vs. White's influence
])))
(;B[oc]C[This is also possible.
]
(;W[nb]
;B[pb]
;W[mc]
;B[md]
;W[lc]
;B[pc]
;W[ld]C[White can play it when the surroundings are good.
])
(;W[pb]
;B[nb]
;W[rb]C[White can live in the corner.
])
(;W[pc]
;B[nb]
;W[od]C[White's powerful strategy - the surroundings must be strong for white
]))))))
(;B[nd]
;W[qc]LB[nd:A]))
