(;
GM[1]FF[4]VW[]AP[Many Faces of Go:10.0]
SZ[19]
HA[0]
ST[1]
PB[Bob Hitchens, 1k]
PW[John Tilley, 1d]
PC[Leeds Congress]
KM[5.0]
RE[B+1]
SO[BGJ 14, June 1971, Page 9]
BR[1 kyu]
WR[1 dan]

C[Copyright British Go Association 1971, 1999 

];B[cp];W[pq];B[dc];W[pd];B[eq];W[de]
(;B[cg]
C[Black 7: There is nothing to say about the fuseki up to this
point, but this move is slightly unusual - most professionals
would play at 11 (A), white 12 (B) etc. Black thought of playing
here as it is a good pincer attack on white 6 and prepares to
make a large area on the left if White chooses the wrong variation.

]LB[cf:B][ce:A]
;W[cc];B[cd];W[dd];B[ce];W[cf];B[df];W[bf];B[bc]
;W[cb];B[be];W[bg];B[ec];W[ae];B[bd];W[fd];B[ed]
C[Black 23: This move is contrary to the joseki of Dia 4, since
he permits white the moves at 28 (A) and 30 (B) with sente. 
]LB[eb:B][fc:A]
;W[ee];B[fe]
;W[ef];B[bb];W[fc];B[db];W[eb];B[ca];W[dg]
C[White 32: I chose this move to simplify matters.  
];B[ge]
(;W[hd]
C[White 34: On looking back, this is a mistake. Black can immediately
play A, white B and then C is difficult for white to answer.
White C is better, but even then white's position is weak and
black's stones 25 and 33 are dangerous.  
]LB[ge:33][fe:25][hc:C][gc:B][gd:A]
;B[nc];W[pf];B[qo];W[he]
C[White 38: I was happy to play here - it patches up my weak point.

];B[op];W[oq];B[mp]
C[Black 41: A nice choice of joseki - black 45 gives black an influential
position, which helps reduce white's influence in the top left
corner.  
];W[np]
;B[no];W[nq];B[mo]
C[Black 41: A nice choice of joseki - black 45 gives black an influential
position, which helps reduce white's influence in the top left
corner.  
];W[cn]
C[White 46: A big mistake. Look at the position: black cannot make
a move on the left side if it were his turn, for the Go Proverb
says "Don't approach thickness". Should black play at D, white
can answer at E and this stone will easily escape, making black
D rather weak. So black can only extend as far a E, which at
present is not large enough. Therefore white need not play on
the left side, and should follow the joseki in the bottom right
corner by playing at F.  

]LB[lq:F][cm:E][ck:D]
;B[mq]
C[Black 47: Now white must live with 48 & 50, giving black sente
to play 51.  

];W[qp];B[ro];W[rp];B[qi];W[eo]
C[White 52: The vital point for this shimari.  

]
;B[fo];W[fp];B[ep];W[fn];B[go];W[gn];B[gp];W[oc];B[nd];W[kc]
;B[nh]
C[Black 63: A good move. If black tries to run out with 35 and
61 he will be in trouble because white is so strong in this area.
Remember the proverb: "Play lightly in an area of your opponent's
thickness".  This 63 increases black's moyo, and threatens to
rescue 35 and 61, without committing himeself irrevocably. The
stones still have a good chance of escape after white 64 (A).

]LB[nf:A][nd:61][nc:35]
;W[nf]
C[At this stage the game ceased to be instructive as the middle
game confusion set in. Black eventually won by 1 point.  
])
(;W[hd];B[gd];W[gc])
(;W[hc]))
(;B[ce];W[cf])
(;B[cg];W[cc];B[cd];W[dd];B[ce];W[cf];B[df];W[bf];B[bc]
;W[cb];B[be]
(;W[ec];B[bg];W[ef];B[dg]
C[Dia 1. This is the normal joseki. In this case black's upper
stones are in excellent relationship with his shimari in the
lower corner.  
]LB[dg:15][ef:14][bg:13][ec:12][be:11][cb:10][bc:9][bf:8][df:7][cf:6][ce:5][dd:4][cd:3][cc:2][cg:1]
)
(;W[bg]
C[Dia 2. White must therefore stop black from achieving this result
by playing 12' at 1 in this diagram. But there is a ladder to
consider. 
])
(;W[bg];B[dg];W[ae];B[bd];W[bb];B[ed];W[ee];B[fe];W[ef]
;B[ff];W[eg]
C[Dia 3. If black can play as in this diagram and capture white
by the ladder as shown, then this turn at 1 in Dia 2 is clearly
unplayable for white. But in this game white 2 (A) in the figure
is a ladder-breaker. So ...  
]LB[pq:A][eg:11][ff:10][ef:9][fe:8][ee:7][ed:6][bb:5][bd:4][ae:3][dg:2][bg:1]
)
(;W[bg];B[ec];W[fd];B[bb];W[ch];B[ed];W[ee];B[fe];W[ef]
;B[ff];W[eg];B[gd]
C[Dia 4. ... this joseki should materialise. Note black 4, a calm
play to secure the corner. But <i> in Fig 1</i>.  
]LB[gd:12][eg:11][ff:10][ef:9][fe:8][ee:7][ed:6][ch:5][bb:4][fd:3][ec:2][bg:1]
)))
