(;
GM[1]FF[4]VW[]AP[Many Faces of Go:10.0]
SZ[19]
HA[0]
ST[1]
PB[Charles Leedham-Green, 1d]
PW[Alison Jones, 1d]
KM[5.5]
TM[30 minutes, sudden death]
RE[B+T]
SO[BGJ 92, Autumn 1993, Page 8]
AN[Feng Yun / Francis Roads]
BR[1 dan]
WR[1 dan]

C[Copyright British Go Association 1993, 2000

[Introductory text in EBGJ web page 09208.html\] 
];B[cp];W[pd];B[dc];W[pq];B[ep];W[de];B[cg];W[jp]
C[White 8: The result in the top left corner is as if black had
made the extension from 3 to 7 previously and then white had
invaded at 6.  This bad [for whom?\] for two reasons: firstly,
such moves belong to the middle game, after white has built some
influence to back up such an invasion, and secondly, because
6 is the wrong point to invade anyway. (See the Ishi Press book
Attack and Defense (sic) page 179 for further details.) .  Mrs
Feng spent some time showing the various joseki that White could
have chosen, starting at 12(A), 17(B), or a point right of 16
(at C). Alison had the grace to admit that she played elsewhere
because she was unsure of these lines. The implication was that
any of them would have been better than this tenuki.  
]LB[ef:C][bf:B][cd:A][cg:7][dc:3]

;B[ce];W[pk];B[jd];W[cd]
C[White 12: This move and the subsequent ones show why 6 is on
the wrong point; there is no way to separate the black stones.
The sequence to 24 is bad for White: her influence is worth less
than the black territory, which is on the fourth line, and in
any case is reduced by the presence of 11. All these moves are
best left unplayed.  
]LB[jd:11][de:6]
;B[dd];W[cf];B[be];W[df];B[bf];W[dg]
;B[dh];W[eh];B[di];W[ei];B[dj];W[ej]
C[White 12: This move and the subsequent ones show why 6 is on
the wrong point; there is no way to separate the black stones.
The sequence to 24 is bad for White: her influence is worth less
than the black territory, which is on the fourth line, and in
any case is reduced by the presence of 11. All these moves are
best left unplayed.  
]LB[de:6][ej:24][dj:23][ei:22][di:21][eh:20][dh:19][dg:18][bf:17][df:16][be:15][cf:14][dd:13][cd:12][jd:11]
;B[dk];W[ie]
C[White 26-32: Once again, White is exchanging the influence of
a wall of stones on the fifth line for black territory on the
fourth, which generally speaking is a poor bargain. Having done
so, 32 should be a point below 31; then there is at least the
prospect of a moyo in the centre of the board, though it will
still take skilful play to turn it into as much territory as
Black has already made secure.  
];B[id];W[he]
;B[hd];W[je];B[ke]
(;W[gd]
C[White 26-32: Once again, White is exchanging the influence of
a wall of stones on the fifth line for black territory on the
fourth, which generally speaking is a poor bargain. Having done
so, 32 should be a point below 31; then there is at least the
prospect of a moyo in the centre of the board, though it will
still take skilful play to turn it into as much territory as
Black has already made secure.  
]LB[gd:32][ke:31][je:30][hd:29][he:28][id:27][ie:26]
;B[ge];W[fe];B[gf];W[ed]
C[White 36: The idea of 36 was to threaten the corner, but 37 captures
three stones; Mrs Feng asserted that after this move Black had
a won game. To lose three stones like this when they are confined
to the edge or corner is not so drastic, but here in the center,
where their influence spreads throughout the board, the loss
is immeasurably greater than just the six points for stones and
territory.  
];B[jf];W[ec]
C[White 38: [After 36,\] there remained interesting aji in the corner.
If White plays atari left of 7, and Black connects below 7, White
can play one point above 15, threatening both the three Black
stones 9, 15, and 17, and a move one point left of 39 (at A),
which would threaten 3 and 13. Unfortunately White promptly plays
aji-keshi with the 38-39 exchange, and erases this aji. When
you know you've just made a bad move, it's very easy to follow
it up with another. The professional thought that even if White
had found an opportunity to make use of her aji, the loss with
37 still left her well behind.  In a game with long time limits
this position is resignable, but with only 30 minutes...  
]LB[dd:13][dc:3][cb:A][bf:17][be:15][ce:9][cg:7]
;B[db];W[gq]
;B[er]
C[Black 41: This move is not urgent. It's a very large endgame
move, but with his great influence Black should be thinking about
invading the right side with a kakari at 75(A) or possibly 43(B).
]LB[po:B][qh:A]
;W[nc];B[po]
(;W[pp]
C[White 44: Mrs Feng recommended the knight's move at 46(A). Although
44 move does appear in the joseki books, the idea being to make
black heavy and easy to attack with the stone at 10, nonetheless
we were assured that this joseki is now regarded as old-fashioned
in China.  
]LB[np:A][pk:10]
;B[oo];W[np]
(;B[pg]
C[Black 47: This move is not a deep enough invasion, especially
bearing in mind all that influence, and leaves white space to
separate the two black positions in good shape with 48(A). If
Black wants to play hereabouts 70(B) is the move. He need not
fear a splitting attack, with those strong stones in the rear.
When you have strong influence you squander it if you don't attack
hard and invade deep; that's what influence is for.  
]LB[qi:B][pi:A]
;W[pi]
(;B[pm]
C[Black 49: Narrow and over-concentrated. He should escape to the
centre with a knight's move at 51(A), or start to make eyes against
the edge with the ikken tobi at C.  
]LB[ro:C][mn:A]
;W[nl];B[mn]
(;W[nh]
C[White 52: White should play honte at A. Honte is very hard to
define, but this is a good example: a seemingly slow move which
actually achieves a great deal. The lower white territory is
secured; the black group above is weakened; and therefore the
white group 10, 48, and 50 is indirectly strengthened.  
]LB[nl:50][pi:48][pk:10][mp:A]
;B[ng];W[mg];B[nf];W[mf]
(;B[me]
C[Black 57: An overplay. The three white captured stones still
have enough aji to force Black to play 59(A), so after 60 (described
by Mrs Feng as "quite good") the three black stones 47, 53 and
55 are in trouble, and White is creeping back into the game.
Black should play the contact move at 64(B) and try to make some
eyes.  
]LB[nf:55][ng:53][pg:47][qd:B][lf:A]
;W[ne];B[lf];W[mh]
C[(Black 57: An overplay. The three white captured stones still
have enough aji to force Black to play 59(A), so after 60 (described
by Mrs Feng as "quite good") the three black stones 47, 53 and
55 are in trouble, and White is creeping back into the game.)
];B[oe];W[nd];B[pe];W[qd]
(;B[oh]
C[Black 65: Aji-keshi. This move does not actually increase black's
eye space at all. What it does do is render ineffective the move
which he should have played at 70(A), again to make eye space.
One of the proverbs in Segoe's "Go Proverbs Illustrated" reads:
"If you plan to live inside the opponents territory, play directly
against his stones", i.e. play 64 instead of 57, and 70 instead
of 65.  
]LB[me:57][qd:64][qi:A]
;W[oi];B[qe]
(;W[rd]
C[White 68' should be the kosumi at 69(A). The idea is to kill
these Black stones off, not just to protect the corner.  
]LB[qh:A]
;B[qh]
(;W[qi]
C[White 70: She can attack more effectively with the placement
at B.  
]LB[rf:B]
;B[re];W[rh];B[rg];W[ph];B[qg];W[ri];B[od];W[oc]
;B[sd]
(;W[og]
C[White 80' should be at 81(A), to prevent black from making his
second eye in the corner. If White had played there black is
well and truly dead; can you convince yourself that this is so?
]LB[rc:A]
;B[rc];W[qb];B[rb];W[lm]
C[White 84: The honte at A is still the best move. In the following
sequence Alison missed many chances to play on this vital point.
By this stage in the game both players were in serious time trouble;
Alison had also been keeping the game record.  
]LB[mp:A]
;B[ln];W[ko];B[kn];W[jn]
;B[km];W[il];B[kk];W[ki];B[jm];W[im];B[jk];W[rp]
C[White 96: This move makes it difficult for black to make eyes
in the corner, and forces the stones to run away twards the white
strength in the top left corner. This is a good way to use this
strength.  
];B[ik];W[gk]
;B[hl];W[hn];B[hk];W[gl];B[ih]
C[Black 103: Loose. Charles is correctly trying to link his group
with the strong stones above, but leaps a point too far.  
];W[ig];B[hg];W[hh]
(;B[jg]
C[Black 107 loses a tempo by playing the atari here instead of
the simple extension to 109(A). If I were feeling mean I would
remind Charles of the British go proverb "Beginners play atari",
but he's a good friend of mine so I won't.  
]LB[jh:A]
;W[ii];B[jh];W[ji];B[hm];W[gm];B[jl];W[in];B[ll]
;W[mm];B[ml]
C[Black 117: This is a slip, the black stones could still have
lived by playing 117' at 118 - see if you can work out how he
can then quite easily make two eyes.  
];W[nm];B[mj];W[lj];B[lk];W[no];B[nn];W[ql];B[om]
;W[qm];B[qn];W[ro];B[ok];W[nk];B[nj]
C[Up to 131 Alison has succeeded in killing the large Black group,
and is ahead on the board despite the bad start. But her flag
dropped and she lost on time.  

Well all you kyu players, I hope you feel encouraged to learn
that after you get your promotion to shodan you will still be
allowed to make the odd mistake now and then. If you found this
commentary helpful why not write to the editor and tell him so?
In fact, why not write anyway and tell him what you think of
the British Go Journal. We contributors slave away over hot word
processors, but rarely get much feed back.  
])
(;B[jh]))
(;W[rc]))
(;W[rf]))
(;W[qh]))
(;B[qi]))
(;B[qd]))
(;W[mp]))
(;B[mn])
(;B[ro]))
(;B[qi]))
(;W[np]))
(;W[kf]))
