(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[which side]PB[to block]
(;B[pd]
(;W[nc]
(;B[qf]
;W[qc]C[This move focuses on territory, but at the same time, it wants to start a war.
In conclusion, this move is combatant.
 
])
(;B[pf]
;W[qc]))
(;W[dd]
;B[qp]
(;W[dq]
;B[do]
;W[co]
;B[cn]
;W[cp]
;B[dm]
;W[fq]
;B[cf]
;W[fc]
;B[di]
;W[oq]C[This is one of the famous openings among pros.
]
;B[cc]
;W[cd]
;B[bd]C[At this moment, 
]
(;W[dc]C[This move is better.
]
;B[bb]
;W[cb]
;B[bc]
;W[ic]C[The typical sequence
])
(;W[be]
;B[bc]
;W[ce]
;B[eb]
(;W[fb]
;B[ec]
;W[ed]
(;B[bf]
;W[af]
;B[fd]C[White suffers from black's cut
])
(;B[dc]
;W[ge]C[Nobody plays in this way. White is quite ahead.
]))
(;W[ec]
;B[fb]
(;W[gb]
;B[dc]
;W[gc]
;B[bf]
(;W[af]
;B[df]
;W[ee]
;B[jc]C[Black is much better.
])
(;W[df]
;B[ae]
;W[ee]
;B[dg]
;W[eg]
;B[eh]C[Black becomes rich!
]))
(;W[df]C[Even if white plays here,
]
;B[gc]
;W[gd]
;B[hc]C[Black secures the territory first.
]
;W[dk]C[This move seems powerful, however...
]
;B[dg]
;W[cg]
;B[ch]
;W[bf]
(;B[ck]C[This is black's wonderful tesuji.
]
(;W[cj]
;B[dj]
;W[cl]
;B[bk]
;W[dl]
;B[bl]C[There's nothing white can do.
])
(;W[cl]
;B[dl]
;W[cj]
;B[bk]
;W[bj]
;B[dj]
;W[ek]
;B[bl]
;W[bh]C[White can play in this way.
]))
(;B[ek]C[A lot of pros chose to play here.
]
(;W[ej]
;B[ck]
;W[el]
;B[fk]
;W[dj]
;B[cj]
;W[dl]
;B[cl]C[White is dull and heavy.
])
(;W[cj]
;B[bi]
;W[ej]
;B[dj]
;W[el]
;B[fk]
;W[dl]
;B[gm]C[A difficult fight
]))))))
(;AW[dp]AB[oq]SQ[qp][oq]C[What about this opening, with a black shimari at the lower right?]
;W[qf]
;B[nc]
(;W[qc]C[White invades.]
;B[qd]
;W[rd]
(;B[pc]C[This move is soft. 
]
;W[rb]
;B[qb]
;W[rc]
;B[kc]
;W[cf]C[White is fine. Komi 6.5 is a great burden for black.
])
(;B[re]C[Good move. White in trouble.]
;W[rc]
;B[qe]
;W[ob]
;B[nb]
;W[oc]
;B[od]
;W[nd]
(;B[oa]C[Proper move. ]
;W[pc]
;B[lc]
;W[rf]
;B[sf]
;W[oe]
;B[ne]
;W[md]
;B[of]
;W[pa]
;B[kd]C[White is in trouble.
])
(;B[pc]C[This is not a good exchange.
]
;W[pb]
;B[oa]
;W[qa]
;B[lc]
;W[rf]
;B[sf]
;W[pf]
;B[ne]
;W[md]
;B[of]
;W[ld]
;B[kc]
;W[kd]
;B[jc]
;W[og]
;B[ng]
;W[oh]C[White in the corner is already alive.
])))
(;AW[qi]LB[qi:A]C[White has a stone at A now, which again changes things.]
;W[qc]
;B[qd]
;W[rd]
(;B[pc]C[Good.]
;W[rb]
;B[qb]
;W[rc]
;B[kc]C[Black is fine with the result.
])
(;B[re]C[Not good here.]
;W[rc]
;B[qe]
;W[ob]
;B[nb]
;W[oc]
;B[od]
;W[nd]LB[lc:B][qi:A]
;B[pf]
;W[mc]
;B[mb]
;W[lc]
;B[lb]
;W[kc]
;B[kb]
;W[jc]
;B[jb]
;W[ic]
;B[ne]
;W[md]
;B[ib]
;W[hb]C[It is still a difficult fight, but black is in trouble. ])))
(;AE[qp]AW[dp]AB[qk][pq]C[And what about the Chinese opening?]
;W[nc]
(;B[qf]C[Nobody replies in this way because it does not fit for the Chinese Opening.
])
(;B[pf]
;W[qc]C[Recently a lot of pros have been playing in 3.3
]
;B[pc]
;W[pb]
(;B[qd]
;W[rb]
;B[rc]
;W[qb]C[Black is not bad but it lacks fighting spirit.

])
(;B[ob]
(;W[rb]C[This is not good at this point.
]
;B[pa]
;W[qb]
;B[oc]
;W[rf]
;B[jd]C[Black is fine.
]
;W[qf]
;B[pg]C[White has no follow-up move.
])
(;W[qb]
;B[oc]
;W[re]
(;B[jd]C[Soft.]
;W[qg]C[White is much better!
])
(;B[rf]C[This is a natural move.
]
;W[qe]
;B[qf]
(;W[pe]C[Soft.]
;B[oe]
;W[qd]
;B[nd]C[This joseki satisfies black.
])
(;W[nb]C[Many people chose to play this move.
]
(;B[oa]
;W[qd]
(;B[nf]
;W[jc]C[One of the variations, and white is fine.
])
(;B[jd]
;W[pe]
;B[oe]
;W[of]
;B[ne]
;W[og]
;B[qh]
;W[ke]
;B[mf]
;W[je]C[A difficult fight
]))
(;B[na]C[What black wants is...
]
(;W[pe]C[Not good for white.]
;B[oe]
(;W[qd]
;B[nd]C[Black is much better.
])
(;W[of]
;B[ne]
;W[og]
;B[qh]
;W[qd]
;B[mb]C[Black is fine.
]))
(;W[jc]C[White plays this move.
]
(;B[jp]
;W[pe]
;B[oe]
;W[of]
;B[ne]
;W[og]
;B[qh]
;W[pa]
;B[oa]
;W[qd]C[White can lead the position.
])
(;B[pe]
(;W[qd]
;B[jp]C[Black is fine.
])
(;W[mp]
;B[op]
;W[jp]C[It is important for white to play elsewhere.
]
;B[se]
(;W[rd]
(;B[rb]
;W[ra]
;B[sb]
;W[pa]
;B[rc]
;W[oa]
;B[qd]
;W[ma]C[The best result for black and white

])
(;B[pa]
(;W[rb]
;B[qa]
;W[ra]
;B[sc]C[White's hallucination
])
(;W[qa]
;B[rb]
;W[oa]C[The ko fight
])))
(;W[pa]C[This move is a terrible blunder
]
;B[oa]
;W[rd]
;B[ra]
;W[rb]
;B[sc]
;W[sd]
;B[qd]
;W[sf]
;B[sb]
;W[rg]
;B[qh]
;W[rh]
;B[ri]C[White cannot live, which means, all white stones in the corner are captured.
]
;W[rc]
;B[sg]
;W[sh]
;B[si]
;W[sa]
;B[sb]C[White is destroyed!
])))))))))))
(;AE[qp]AW[dp]AB[pj][pp]C[And how do things change with the san-ren-sei?]
;W[nc]
;B[pf]
;W[qc]
;B[pc]
;W[pb]
;B[ob]
;W[qb]
;B[oc]
;W[re]
;B[rf]
;W[qe]
;B[qf]
;W[nb]
;B[na]
(;W[pe]
;B[oe]
;W[of]
;B[ne]
;W[og]
;B[ph]
;W[pa]
;B[oa]
;W[qd]
;B[mb]
;W[oh]
;B[oi]C[Black is much better.
])
(;W[jc]
;B[pe]))))
(;AW[nc][dd][jd]AB[pd][pf][qj]LB[jd:B][qj:A]C[Here black has a stone around A to help, but white has a stone around B! ]
;W[qc]
;B[pc]
;W[pb]LB[ob:A][qd:B]TR[dd][jd][qj]C[In some positions it is very hard to choose between black A or black B.
What side to block?
When is A good and when is B good?]
(;B[qd]
;W[rb]
;B[rc]
;W[qb]C[Black is fine with the result.
])
(;B[ob]
;W[qb]
;B[oc]
;W[re]
;B[rf]
;W[qe]
;B[qf]
;W[nb]
;B[na]
;W[pa]
;B[oa]
;W[pe]
;B[oe]
;W[of]
;B[ne]
;W[og]
(;B[ph]
;W[qd]
;B[mf]LB[ma:A]C[Black is not bad at all.
White has weak stones in the centre, but white also has the atari at A which gives him points at the top and gives black bad shape.
So this is also playable for white])
(;B[qd]C[black can also push here]
;W[rd]
;B[se]
;W[ma]
;B[od]
;W[rc]
(;B[ph]
;W[mf]C[A difficult fight but it is favorable to white
])
(;B[mf]
;W[qh]
;B[rh]
(;W[pg]
;B[rg]
;W[sd]
;B[mh]C[Black is not bad.
])
(;W[sd]
;B[ph]
;W[oh]
;B[pi]
;W[mh]
;B[kf]
;W[nj]
;B[jh]
;W[pk]
;B[qk]C[A big fight and black is fine.
])))))
(;AW[nc]AB[pd][qf]LB[qf:A]C[After all the high moves of black on the right side, A is now low. What's the difference?]
(;W[qc]
;B[pc]
;W[pb]LB[ob:A][qd:B]C[When to play A and when to play B?]
;B[qd]C[When there are no stones nearby this is soft.]
;W[rb]
;B[rc]
;W[qb]
;B[qi]C[This is a typical joseki but black is not fine in this situation.
])
(;AW[qk][qn][rp]AB[pp][nq][qq]C[Now white has a strong group on the right. This influences the position greatly.]
;W[qc]C[In that case,
]
;B[pc]
;W[pb]
(;B[qd]C[Good move.]
;W[rb]
;B[rc]
;W[qb]
;B[qi]C[This is good for black.
])
(;B[ob]C[Not good here.]
;W[qb]
;B[oc]
;W[re]C[At this point...
]
(;B[rf]C[Wrong in this position.]
;W[qe]
;B[pe]
;W[pf]SQ[qk]C[The cut is strong with the marked stone in place]
(;B[nd]
;W[qg]C[Black is in trouble.
])
(;B[qh]
;W[nb]
;B[of]
;W[pg]
;B[oh]
;W[og]
;B[ng]
;W[nf]C[Black cannot capture the two white stones.
]))
(;B[qe]C[Black should play here. 
]
;W[rf]
(;B[nd]
;W[qg]
;B[pg]
;W[qh]C[White's territory is great.
])
(;B[rg]
;W[qd]
;B[qg]
;W[nb]
;B[na]
;W[nd]C[Black is not good.
]))))))
