(;GM[1]FF[3]
VW[]AP[Many Faces of Go:11.0]SZ[19]HA[0]ST[0]
PB[Chris Welsh (quantumf)]
PW[Hugo van der Merwe (GoJaC)]
DT[2006-09-05,2007-01-17]
PC[Dragon Go Server: http://www.dragongoserver.net/]KM[6.5]
RU[Japanese]
RE[B+R]
GN[GoJaC-quantumf-239374-20070117]
GC[Game ID: 239374
]BR[7 kyu]WR[7 kyu]
OT[Japanese byoyomi: 90 days + 1 day per move and 10 extra periods]
C[Comments by Konrad Scheffler. Enjoy!
];B[od];W[dd];B[dp];W[pp];B[pn]
;W[np];B[qp];W[qq];B[qo];W[rq];B[qj];W[jq];B[cf]
C[It's hard to criticise this (all big points are big), but my feeling is that with R10 already on the board completing the corner enclosure with R16 becomes bigger than anything else.
]
;W[fc];B[bd];W[cc];B[cj]
C[A mistake - holding back to C11 (or D12) is joseki. The reason is that the 3-space extension leaves a white invasion at C12 (no rush, black cannot prevent it in the near future as another play here would be much too slow) and when white plays here the B16 C17 exchange will become a loss for black - the option of diving into the 3-3 point no longer exists, so black will have no choice but to enter a running fight with his C14 stone.
]
;W[qd];B[pf];W[oc];B[pd];W[pc];B[qc];W[rc];B[qb];W[rb];B[qe];W[rd];
B[nc];W[pb];B[ob];W[qa];B[md];W[ne];B[nd];W[qh]
C[Feels a little cheeky (black has a lot of influence here) but seems feasible.
]
;B[ph]
C[Dropping back and inviting white to make an easy connection. Black is playing for central strength. Might be going a little easy on white, but still simple and strong.
]
;W[pg];B[og];W[qg];B[pi];W[rf];B[gq];W[jo];B[hc]
C[Approaching white's three stones from a second direction. It is useful for white to think of an approach/extension on this side and a play at B17 as miai. It may seem slow for white to play B17 now, but it settles the group and prepares for a severe invasion at K17 (severe because the white group to the left will already be stable), not to mention making a future invasion at C12 more severe, so is not small. If left out, a black push at B17 will suddenly leave the three stones without a base and needing to run into the centre, where black can chase it while building up his surrounding positions.
]
;W[cn]
C[This violates the principle of not creating a second weak group while your first is unsettled.
]
;B[co];W[dn];B[ge]
C[Not as strong as stealing the base at B17. Now white B17 (omitting it is _really_ not recommended this time) and at least the group is fine.
]
;W[ql]
C[Not a bad point, but it creates a third weak group. White should take care of the other two first. If black can settle this situation in sente, white will be in trouble.
]
;B[pl];W[pm]
(;B[qm];W[pk]
(;B[ol];W[qk]
(;B[rj];W[ok];B[nl];W[nj]
C[Hugo van der Merwe: Not sure the best way to move out. A couple 
of options, obviously I'm trying this one... ;)]
;B[nh];W[lj]
C[White has advanced nicely into the centre and things are looking better than before, at least the game plan is clear: live three times and black will hopefully be short of points. But, realistically speaking, three weak groups are still a serious burden. Let's count the score:

White:

Bottom right: about 25
Top right: about 10
You can't count any points for weak groups - think of them as a liability rather than an asset, and subtract 10 points each.
Total: 5 points.

Black: well, more than 5 anyway :-)
]
(;B[om]
C[Er, how to put it gently? If this was an internet game I'd assume a misclick and offer black an undo. Or if you study Victor Chow's game commentaries you'll discover that the appropriate comment for a move like this is "Yuk and double yuk". 

If the ugly empty triangle doesn't convince you that this is a bad move, consider the position if you remove the stone at O8 - it's practically identical. Which means is that by playing this way, black has turned his move 59 into a pass. 

And if you're still not convinced, have a go at the 1-move problem in the variation.
]
;W[oi]C[Trying too hard - this exchange helps black.
];B[ni];W[ll];
B[lh];W[nn]
C[Full marks for spotting a key shape point (the angle point of black's shape - perfect for attacking it), but white has got the wrong end of the stick here and in the next few moves. Black's group is stronger than white's surrounding stones, so white should focus on strengthening himself first. The net effect of the coming exchange is to strengthen black while white achieves very little. White's group above is still rather precarious, so he cannot afford to give black two solid eyes.
]
(;B[on]
C[This works, but I'd prefer simply connecting at S8. The liberties of the white stones above can become relevant (see variation).
]
;W[rm];B[rn];W[rk];B[po];W[oo]
C[Ending in gote is a disaster. Also it's hard to believe that white is willing to endure the aji of the atari at Q3 (at least holding back with P4 would take solid territory).
]
;B[mk]
C[As usual, the double peep is a little crude and white can dodge effectively.
]
;W[mj];B[lk];W[ki];B[kh];W[kk]C[Skillfully patched up by white...
];
B[kl]
(;W[km]
C[...but he stumbles at the last hurdle. This hurts the central group white is trying to save.
]
;B[jl];W[jk];B[il];W[ml];B[nk];W[ii];B[ig];W[ej];B[dl]
C[Fine play - black just needs to keep white split up and it's hard to imagine white living everywhere. In what follows, black kills the big dragon after which the game is over.
]
;W[fn];B[fl];W[hn];B[gj];W[gi];B[bc]
C[I imagine black's tenuki isn't neccessary, but there should be many ways to win here.
]
;W[bb]
C[This move doesn't make eyes (because of the sequence as played) - white would be better off running straight away.
]
;B[db];W[cb];B[ec];W[ed];B[fb]
C[Chris Welsh: <h>D18 Provokes a fight. I'm not sure that I'm strong 
enough, but the idea is to split the top left stones from the 
center stones, possibly killing one of the two groups, which 
should be enough to secure the win. It may not work, may even 
backfire as black is quite weak on the left.</h>]
;W[gc];B[gb];W[ef];B[fg]
C[Chris Welsh: <h>The fight commences. Black now has a good chance 
of splitting white, but concerns about the weakness of black's 
left hand site remain</h>]
;W[eg]
C[Hugo van der Merwe: Nasty fight coming up. Well, I hope, cause 
if there isn't a nasty fight, it's because I'm all dead and cut 
off. ;)]
;B[fi]
C[Back to attacking the large group - this looks like a key move.
];
W[ei]C[Hugo van der Merwe: Troubling. Very troubling.];B[fh];W[ch];
B[dh];W[ce]
C[Hugo van der Merwe: I'm in some serious trouble here. <looking 
for a place to resign, probably. ;) >]
;B[be];W[df];B[cg];W[fe];B[eh];W[ab];B[jh];W[ik];B[hl];W[ji];B[sk];
W[hj];B[fj];W[pj]
C[Hugo van der Merwe: <Looking for a place to resign... ;) >];B[qi];
W[hg];B[ih];W[gf];B[hh];W[ff];B[he];W[sl]
C[Hugo van der Merwe: About time to resign? No hope of saving this 
group anymore. Not that there was any real hope about 10/15 moves 
ago... ;)]
;B[sj];W[cq];B[bo]
C[The wrong choice here - black doesn't want or need to attack the white stones above, so why make a wall? Makes no difference to the result though.
]
;W[dq];B[eq];W[er];B[fp];W[gr];B[fr];W[fs];B[fq];W[cr];B[bn];W[bp]
C[Hugo van der Merwe: Couldn't decide if settling in the corner 
like this, or connecting out with H2, is better.]
;B[io];W[in];B[jn];W[jm];B[kn];W[ln];B[jp];W[ko];B[ip];W[kq];B[cm];
W[eo];B[ep];W[qf];B[pe];
C[Hugo van der Merwe: Black wins by more than 50. (cgoban score 
estimate places it at just over 70, but white might score a few 
points in end game, since black doesn't care ;)

Result: B+Resign

KS: An easy game to summarise: White left one group weak to make a second, then a third, After trading a few mistakes, black got back to the main theme of a splitting attack and it was inevitable that something had to die. Keep your weak groups down to one at a time!
])

(;W[jl];B[km];W[jk]C[
];B[lm]
C[By sacrificing one stone, white has developed beautifully.
])
)

(;B[rl];W[rk]
C[If white foolishly pushes (giving up one more liberty)...
];B[sk];
W[tt];B[nk]C[...black will be threatening this damezumari capture.
])
)

(;B[tt];W[om]
C[Black to play and capture white's two stones in a net.
])
)

(;B[ok]
C[This is more urgent than preventing white's link-up. The wall makes a huge difference to black's central moyo. Just compare the potential central territory with the game continuation.
])
)

(;B[om]
C[Usually just taking the ponnuki is better, even if you don't want to fight the ko.
]
;W[ol];B[pm];W[qk];B[ok])
)

(;B[om];W[qm];B[on];W[pk];B[ol];W[qk];B[ok];W[pj];B[oj];W[qi]
C[Black can even consider giving up all this territory - he gets a nice wall and sente to attack white's two groups.
])

)