(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
GN[ IGS]PW[BlindGroup]PB[raf]WR[9k]BR[10k]DT[2017-08-20]EV[Internet Go Server game: BlindGroup vs raf]CR[ih]AW[da][qa][cb][eb][nb][pb][qb][ac][cc][dc][lc][nc][qc][bd][dd][gd][kd][qd][be][ke][le][oe][qe][re][bf][ff][kf][eg][lg][mg][ch][ih][jh][kh][lh][mh][nh][oh][qh][rh][mi][pi][qi][lj][oj][pj][kk][lk][mk][ml][cn][ho][io][jo][ko][lo][dp][fp][gp][kp][eq][nq]AB[ba][ca][oa][pa][bb][fb][ob][bc][ec][gc][oc][pc][cd][ed][md][nd][pd][ce][de][ee][me][pe][cf][jf][lf][mf][of][qf][rf][jg][kg][ng][og][pg][ph][ki][li][ri][ij][kj][mj][nj][rj][jk][nk][ok][pk][qk][qn][hp][ip][jp][lp][mp][pp][cq][fq][gq][kq][dr][er][fr][hr][jr][kr][gs][is]WL[448]LB[ke:B][eg:C][lk:A][mo:1]TR[ge][he][ie][je][se][gf][fg][bh][dh][eh][mm][bn][mn]SQ[ia][ib][hc][ic][ag][bg][cg][ol][om][on][oo][ap][bp][cp][np][op]C[Interesting position.
Let's first discuss what your "moyo" is here:
The common understanding of moyo is "sphere of influence", which means
a) "things happening here will be in my favor and I can expect a lot of profit from them"
b) if my opponent does not come in soon, I'll probably convert it all into territory
c) but I'm prepared to have part of it not to become territory, if that means the major part of it becomes territory and I get some other profit, like overall strength, or some new influence I can use to destroy his stuff
Now is this true for your moyo?
I drew some imaginary lines, to delimit
- White's moyo, assuming it all becomes territory
- Black's territory, assuming he gets some more while defining the boundaries of White's
The territories are roughly equal. This means that White needs to convert all of the moyo into territory. That's not the traditional understanding of moyo.
White can expect this to happen if the surrounding positions are all strong. This is however not the case:
String A has only 4 liberties, although it is close to a big wall with 7
String B has only 4 liberties, although there is some aid by other weak stones
Group C is pretty thin, as it is not connected and close to a super strong Black group
In between them there is a big space to maneuver
White must manage all these weaknesses, while keeping any Black group in there from making two eyes. How to do that?
The major weakness to manage is the area between B and C?
Does Black have any weaknesses?
The only thing White can aim for is the lower right corner. All the rest is super safe. If White gives up on the lower right, a move like 1 can be assumed to be for free.
So again, the central stones are not White's biggest concern
]RE[B+Resign]
;B[gn]BL[488]C[So when Black plays here, the question is, if we need to respond, or if we can fix our major weakness instead.]
(;W[hm]WL[407]C[White chooses another indirect defence, which shows fighting spirit but makes the situation more complex]
;B[eo]BL[452]
;W[ep]WL[397]
;B[gj]BL[446]LB[id:D][hf:B][dh:C][go:A]C[Black moves into open space, looking for all kinds of cuts and complexities]
(;W[fl]WL[383]
;B[jm]BL[393]
;W[im]WL[362]
;B[gm]BL[339]
;W[gl]WL[358]
;B[hl]BL[333]
;W[il]WL[347]
;B[hk]BL[329]
;W[em]WL[320]
;B[do]BL[317]
;W[co]WL[318]
;B[cp]BL[314]
;W[go]WL[315]C[White has spent a lot of moves to finally still play the connection you wanted to resist]
;B[ek]BL[308]
(;W[dm]WL[277]C[This would have indeed been the perfect opportunity to fix the weakness at the top]
;B[jl]BL[296]
(;W[lm]WL[232]
;B[gg]BL[268]C[Black now tackles the major weakness, right between White's thin stones and the cut position]
(;W[hg]WL[187]
;B[gf]BL[261]
;W[hf]WL[177]
;B[ge]BL[232]
;W[gh]WL[169]
;B[fh]BL[222]
;W[fg]WL[599]
;B[fe]BL[213]
(;W[eh]WL[585]
;B[fi]BL[207]
;W[id]WL[562]
;B[cj]BL[194]C[This is devastating]
;W[bi]WL[550]
;B[bj]BL[586]
(;W[bl]WL[534]C[overplay]
;B[ci]BL[574]
;W[bh]WL[511]
;B[cg]BL[567]C[Game over]
;W[di]WL[478]
;B[dj]BL[564]
;W[ei]WL[470]
;B[ej]BL[556]
;W[gi]WL[468]
;B[fj]BL[539]
;W[jj]WL[451]
;B[dg]BL[531]
;W[dh]WL[444]
;B[bg]BL[528]
;W[ag]WL[440]
;B[af]BL[519]
;W[ae]WL[436]
;B[ai]BL[515]
;W[hi]WL[432]
;B[ik]BL[509]
;W[gk]WL[427]
;B[hj]BL[506]
;W[ak]WL[426]
;B[aj]BL[503]
;W[qq]WL[361]
;B[pq]BL[498]
;W[pr]WL[360]
;B[qp]BL[494]
;W[rq]WL[346]
;B[rp]BL[491]
;W[np]WL[341]
;B[mo]BL[487]
;OS[])
(;W[cg]
;B[ci]
;W[ah]
;B[gi]
;W[hh]
;B[ei]
;W[bl]))
(;W[fi]C[White has a ladder]
;B[ie]C[but then Black goes here]
;W[he]
;B[id]))
(;W[gf]
;B[hg]
;W[ie]
;B[hf]
;W[hi]
;B[hj]
;W[fh]))
(;W[mo]C[more active]))
(;W[ck])
(;W[ie]))
(;W[ie]C[let's again look at this defence]
;B[go]C[The cut leaves a lot of aji]
;W[cp]
;B[jm]C[for example here]
;W[im]
;B[lm]
;W[mm]
;B[ej]
;W[cg]
;B[fl]LB[mn:A])
(;W[go]C[This defence ...]
;B[hf]C[leaves funny business at the top]
(;W[gh]
;B[id])
(;W[id]
;B[gh]))
(;W[hk]C[White can also attack the shape]
;B[hj]
;W[ie]C[defend]
;B[go]
;W[en]
;B[gm]
;W[gl]C[and win the fight this way
This is my favorite]))
(;W[ie]C[This move swallows the cutting stones and White's weakness is almost fixed.]
;B[go]C[However the cut looks quite severe]
(;W[en]C[If White defends here]
;B[im]C[Then Black links up his stones, makes shape and disconnects the white central stones. This will require a lot of reading.])
(;W[im]C[If White defends his central stones]
;B[eo]C[Black peeps]
;W[ep]
;B[do]C[and captures]))
(;W[ck]C[White can also kill the space and link up his loose stones on either side, were Black to cut]
;B[go]
(;W[hm]
;B[eo]
;W[ep]
;B[do]
;W[co]
;B[cp])
(;W[en]
;B[im]C[The situation is almost the same
So, we need to respond. Should we respond directly or indirectly?]))
(;W[go]C[The direct response is probably the best move: White is connected in a grand way now and only has the top to worry about.
I would even say this is a thank you move.])
(;W[en]C[An indirect respons leaves Black with options]
(;B[go]
;W[hm]C[A direct cut is not good])
(;B[im]C[But making shape and threatening a cut, is much better
Black can keep this in reserve])))
Login
Register
FAQ
Search
BlindGroup
