(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Chinese]SZ[19]KM[7.50]TM[5400]OT[25/600 Canadian]
PW[Cristian Pop]PB[Andrii Kravets]WR[7d]BR[6d]DT[2015-03-06]EV[European Pro Qualification 2015 - Pisa]RO[2]PC[The KGS Go Server at http://www.gokgs.com/]SO[http://www.eurogofed.org/]C[(Note: this sgf file has a bit different structure, variations and the main line are all in the same branch.)

This is a game from the second round of European pro qualification tournament played in Pisa in March 2015. Being a knockout tournament, the pressure on the players is quite big. One mistake and you're out :) In the first round Cristian won against Viktor Lin.]RE[B+8.50]MULTIGOGM[1]
;B[dd]
;W[pp]
;B[pc]
;W[dp]
;B[qn]
;W[nq]
;B[qh]C[Nowadays we can see this fuseki a lot. Black wants to find in fuseki a good way to use his first move advantage. Usually black plays aggressive, and also usually, white has to play solid and wait ( to use his komi advantage ), not to enter in fights too soon which favor black.]
;W[fc]
;B[ic]C[Continuing the same idea, black tries to put pressure on top right and right side. This is why the pincer is natural]
;W[cc]C[For white to enter at 3-3 is possible, but will give black exactly what he wants]
;B[dc]
;W[cd]
;B[de]
;W[db]
;B[eb]
;W[cb]
;B[ec]
;W[cf]C[This thickness works well with black's other stones]
;B[rp]C[now black can choose to defend the right side]
;W[qq]
;B[pl]C[and wait to see how white will reduce/invade top
]
;AE[pl][rp][qq]PL[B]
;B[eg]C[or can go for more center]
;W[cg]C[anyway, i didn't like any of those variations for w,]
;AE[cb][db][eb][cc][dc][ec][cd][de][cf][cg][eg]
;W[cf]C[this is why i went for a more complicated variation.]
;B[fd]
;W[gd]
;B[fe]
;W[dc]
;B[cc]
;W[ec]
;B[cd]
;W[ge]C[w tries to get out, and at the same time to keep eyes on center,/top side]
;B[dg]
;AE[dg]LB[dg:A][fg:B]C[here , most usual b moves are A and B]PL[B]
;B[ff]LB[cf:A]C[to answer this way , is bad shape for b and heavy. b stone does not put much pressure on A]
;AE[ff]AB[fg]
;W[ed]
;B[ee]
;W[hc]
;B[id]
;W[de]
;B[be]
;W[bf]
;B[dg]C[this sort of fight will folow, it is difficult for both but it is possible. 
here other very complicated variations start, anyway:) i'll stop here in this joseki study else will take too long to finish]
;AE[hc][ed][id][be][de][ee][bf][fg]SQ[dg]C[black chose the other line]
;W[hc]LB[gc:B][ed:A]C[w wants to keep the push at A for later, so he has to make this exchange, else the cut at B is annoying]
;B[id]
;W[df]
;B[eg]
;W[cg]LB[ed:A]C[before cutting at A, white needs more liberties to fight the semeai with the corner]
;B[di]
;W[ci]
;B[cj]
;W[ch]C[during the game i didn't really know those variations. There are many semeais also to read out. I spend here 30 mins around to read something out :) 
but still this move is a mistake, i was afraid of lack of liberties.]
;AE[ch]PL[W]
;W[dh]C[this is the correct move.]
;B[eh]
;W[ch]
;B[dj]LB[dh:A][eh:B]C[anyway it will become as in the game, but the idea is that A perhaps later will not be answered with black B]
;AE[dh][eh][dj]TR[ch]
;B[dj]
;W[ed]C[this was w plan from the beginning of the variation, to push and cut here. ]
;B[ee]
;W[de]
;B[gf]C[b plan is to sacrifice the corner and gain outside thickness]
;W[hf]
;B[gg]
;W[be]
;AE[be]AW[he]TR[he]C[w would like to connect, but]
;B[be]TR[cf]C[will become a problem for w on left side, w not alive]
;AE[he]AW[be]
;B[he]
;W[ib]
;B[hd]
;W[gc]
;B[jb]
;W[ha]
;B[kc]
;W[ef]C[White should play this atari now]
;B[ff]
;W[cb]C[And afterwards make sure he has two eyes at the top]
;AE[cb][ef][ff]
;W[cb]LB[ef:A]C[In the game this was played, but now the atari at A might be gote]
;B[oh]C[so, after this joseki, w gained a big corner, about 32 points. 
B is also not unhappy, he has big influence on the outside, and sente to expand the top more.

Here comes an important moment of the game. Basically w has 2 options. To invade directly, which usually is a bad idea :) Or to reduce. ]
;W[qc]LB[qb:B][qd:A]C[before choosing between reducing or invading , w tries to see how b will answer to this probe.
Here b has 2 choices, to play from the outside, A or to play hane underneath at B, and try to kill all.

If w plays this move after b becomes stronger in the center, for sure b will seize the opportunity and kill with B.
But now, it is hard for b to go for B , still w has room to run ]
;B[qd]C[b choose outside]
;W[ef]C[at this moment i realize I missed the chance to play joseki atari at right moment.

In the game, b answered, but probably b can also tenuki]
;B[on]
;W[ff]
;B[gi]TR[gi][on]C[these 2 moves sure are bigger than the 3 black stones]
;AE[ff][gi][on]AB[fd][ee][fe]
;B[ff]C[fortunately b answered]
;W[pd]C[then w proceeds with his probe, another question, how does b answer?]
;B[oc]C[as expected, b played most normal move. 
and now w knows he can make eyes in corner]
;W[rd]
;B[qe]
;W[qb]
;B[re]
;W[sc]
;B[se]
;W[ra]
;B[pb]
;W[sb]C[w has this life anytime now for later]
;AE[ra][pb][qb][sb][sc][rd][qe][re][se]PL[W]
;W[om]C[One idea now would be to reduce calm
]
;B[pl]
;W[ol]
;B[pk]
;W[ip]LB[rd:A]C[and play big moves and wait to see how black will continue
If later black expands the center, w can live inside with A
probably this is an even game]
;AE[pk][ol][pl][om][ip]C[But here, i started to have different plans:) ]PL[W]
;W[ph]LB[mc:C][qe:B][if:A]C[And i come with this surprising unusual move. 
The idea behind it, was to use the aji from A , B and C, as happened in the game.]
;B[pg]
;W[pi]
;B[qi]C[black can choose this variation
]
;W[qg]C[and i was prepared to cut here, even if the ladder is bad for w
]
;B[pj]
;W[qe]
;B[rd]
;W[rc]
;B[re]
;W[pf]
;B[og]
;W[rf]
;B[od]
;W[pe]
;B[oe]
;W[rh]
;B[of]
;W[qf]
;B[ri]
;W[sd]C[White lives big, this probably will be a close game again]
;AE[rc][od][rd][sd][oe][pe][qe][re][of][pf][qf][rf][og][qg][rh][qi][ri][pj]
;B[qg]LB[rd:A]TR[ph][pi]C[if b just connects, these are two good kikashis and white keeps A for later to live in the corner
]
;W[rd]
;B[qe]
;W[om]LB[qb:A][oi:B]C[having A and also B, this is annoying for b]
;AE[rd][qe][pg][qg][pi][om]
;B[pi]C[so probably the move in the game is best for b]
;W[pg]
;B[qi]C[and now w starts to prepare what he was looking after]
;W[if]
;B[ih]
;W[qe]
;B[rd]
;W[qb]
;B[re]LB[mc:A]C[basically w wants to play at A, to split both black's groups.]
;W[pe]LB[rf:B][ph:A]SQ[pg]C[here is more clear the meaning of A, w wants this mov to be sente, to have a clear hane at B]
;AE[pg][ph][pi][qi]C[without these exchanges..]
;B[rc]
;W[rb]
;B[nd]C[b can answer on the outside
]
;W[rf]
;B[rg]LB[pg:A]C[the absence of A, will let b connect]
;W[qf]
;B[sf]
;W[se]
;B[sd]
;W[sb]
;B[sg]SQ[sb]C[even with t18 sente w is still dead in the corner]
;AE[rb][sb][rc][nd][sd][qf][rf][sf][rg][sg]AW[pg][ph]AB[pi][qi]
;B[qf]C[so, b has to answer
here again, it was a very tricky situation.
Normal move is to connect]
;W[pf]
;B[nd]C[but i was afraid of tenuki]
;W[qg]
;B[rf]
;W[rg]
;B[rb]
;W[nf]
;B[mh]C[sure, w can cut at s13, but now all w is in danger to die, no eyes]
;AE[rb][nd][nf][pf][rf][qg][rg][mh]
;W[qg]C[this is why is better to push first once]
;B[pf]C[b has this option]
;W[of]
;B[rf]
;W[nd]
;B[nc]
;W[md]
;B[mc]
;W[og]
;B[rg]
;W[nh]
;B[oi]
;W[mg]C[but w can handle now this fight, can get eye shape outside]
;AE[mc][nc][md][nd][of][pf][rf][mg][og][rg][nh][oi]
;B[rg]C[b choose to connect instead, tring to kill all
]
;W[pf]
;B[rf]
;W[hh]C[last preparation]
;B[nf]C[b can't really ignore]
;W[gh]
;B[fi]
;W[hg]
;B[fg]
;W[hj]TR[dj]C[b will get cut, and center is gone, plus is still bad aji on top right]
;AE[nf][fg][hg][gh][fi][hj]
;B[hg]C[so, b asnwered]
;W[ig]
;B[gh]C[this atari is the only b variation]
;W[mc]LB[mc:A]C[and now, the final move after all this preparations, comes.
w struggled a lot for this A

here is strange, we didn't find a really good follow up for b
the variationfrom the game feels most powerful for b]
;B[ke]C[b can try this jump too
]
;W[me]
;B[kg]
;W[nc]TR[oc][pc]C[but b stones will die]
;AE[nc][kg]
;B[pb]C[if he saves them]
;W[nc]
;B[od]
;W[oe]
;B[rb]
;W[nd]
;B[rc]
;W[ob]
;B[qa]TR[ke]C[very good squeeze for w, b group becomes weak]
;W[kf]C[still b feels in trouble]
;AE[qa][ob][pb][rb][nc][rc][nd][od][ke][me][oe][kf]AW[qb][qc]
;B[od]LB[od:A]C[b chose A, to avoid this squeeze variations]
;W[ld]C[but now w has this kosumi]
;B[kd]
;W[lf]
;B[ke]
;W[nf]C[at this point, no matter what b does, w can manage to save all his stones]
;B[jh]C[b looks for outside too during this fight, an important move]
;W[kf]C[here, during the game, i regreted this ]
;AE[kf]PL[W]
;W[nd]C[before playing L14, w can sqeeze first]
;B[oe]
;W[of]
;B[pb]
;W[ne]
;B[rb]
;W[nc]
;B[rc]
;W[ob]
;B[qa]
;W[kf]C[then defend]
;B[lb]C[b needs eyes]
;W[mb]
;B[ka]
;W[lh]C[it is a big difference in points]
;AE[ka][qa][lb][mb][ob][pb][rb][nc][rc][nd][ne][oe][of][lh]AW[qb][qc]
;B[mb]C[now b can connect and gain more than 10 points.

i overlooked this connection, during the game i thought b has to live with m18]
;AE[mb]PL[B]
;B[lb]C[i thought b has to
]
;W[mb]
;B[ka]
;W[ma]
;B[la]
;W[pa]LB[nh:A]TR[pa]C[after w plays at A, still can save with q19 his stones from corner]
;AE[ka][la][ma][pa][lb]AB[mb]
;W[nh]LB[mb:A]C[unfortunately w can't cut after A, so w has to defend ]
;B[nc]
;W[oi]
;B[oj]
;W[ni]LB[hi:A]TR[ja][rj][sj]C[still, this result was good for w
if we count b teritorry , till triangle , b has 32, as much as w has in the top left corner
w also has A aji, very big, threat for b, and 2 corners. 
i was happy at this moment with my game])
