(;GM[1]FF[4]AP[GOWrite:2.0.05]SZ[19]
;B[pq];W[dc];B[cp];W[pd];B[qo];W[ce];B[jp];W[ep]
(;B[dn]C[This choice of joseki is not strong enough.  Black already has a stone in 7, black needs to ultilise it.  There are several possibilities, I only gave 3, but under all circumtances, black needs to use 7.]
;W[cq];B[bq];W[dq];B[bo];W[hq]C[Now this result is too good for white. 7 is misplaced, it should have been at 3rd line.  White still get a normal result from joseki, which means black did not used 7.]
;B[pj]C[In this particular position, the top side is the biggest, this is the next big move.]
;W[dj]C[Again, top side is the biggest, this is actually very small.];B[jd]C[Remember the rule of thumb, when enter your opponenet's moyo, 3rd line is much better.]
(;W[hd];B[nc]
(;W[nd];B[md];W[ne]C[This allow black to settled down too easy.]
(;B[oc]C[This is hardly a good move by black in this position.  Although almost all joseki book gives this, this is actually a terrible move.  ]
;W[pc];B[qf]
(;W[qh]C[This is an overplay.]
(;B[od]C[This is not possible.]
(;W[oe]C[This is an overplay];B[pe];W[qe];B[pf];W[mc]
(;B[mb]C[This is a terrible reading problem.  ];W[lc];B[pb];W[qb];B[ob];W[rd];B[lb]
;W[kc]
(;B[na]C[??? Black does not read well in this type of battle.  ];W[le];B[rb];W[rc]
;B[rf];W[sb];B[qd]
(;W[ra]C[This is no reading...];B[ph];W[qk];B[qj];W[rj];B[ri];W[pk];B[rk];W[rl]
;B[sj];W[pm];B[oo];W[nm]
(;B[dh];W[ef];B[cj];W[ck];B[ci];W[ek]C[This move should be played at 68];B[dl];W[dk]
;B[eg];W[ff];B[gh];W[kb];B[hf]C[Overplay]
(;W[he];B[jf]C[Moves after 75 not recorded. Black wins by 4.5

Now after 75, suddenly the black group is no longer weak, then the two weak white group will pay price to settle. Although now white is shead on territory, but black have significant initiatives.

The main focus of this game
1, the choice of joseki at 9, have to think carefully there.

2. The battle at top right corner, try to use the reverse engineer method to evaluated the result.

3.  Reading is clearly another important factor.  

Otherwise both side played some good moves.   The white invasion at right side started with 50 is nice, and the final shape is also good.  ])
(;W[gg];B[hg];W[hh]C[under this cirsumstances, white should just cut the black's connection, with two weak group, one will die here...]))
(;B[jc];W[kb];B[jb];W[ka];B[jf]C[INvade from here is much better, as white's group is only having one eye, notice that the weak 48, now the black group on top no longer threated by the extendsion of 64.  the black shape at right side is pretty solid, thus the white group would have a uphill struggle.  ]))
(;W[qc]C[just one move deep..]))
(;B[rb]C[This clamp would give white a lot of problem..])
(;B[me];W[og];B[mf];W[ng];B[jc]C[Black can also capture white in this way, and white is still need to defend one more move in corner. Either one is far better than to play a move that just make two eyes.]))
(;B[pb];W[qb];B[ob];W[rc];B[lc];W[re];B[ph]C[This is a much better result for black.]))
(;W[pe];B[oe];W[pf];B[of];W[pg]C[This is good for white, the territory in the corner is huge, while the exchange of 17 and 18 can be considered as favourable to white, as 17 is way too close to the thickness.  

There is a analysis technique, by change the move sequences and remove the unnecessary stones from the final shape. 

Now is we reverse engineering this shape, by take away the two black stones 19 and 21, and also remove two white stones 20 and 22, this would not change the shape much, but we can clearly see that black is pushing a truck, and 17 is way too close to the thickness.]))
(;B[pg]C[This is good, aiming at the cut while attack 26. White is in trouble.]))
(;W[pf];B[pg];W[qe];B[of];W[pe]C[White need to protect the cutting point, by play this variation is the best, at no matter where black connect, he is overconcentrated.]))
(;B[pc];W[oc];B[ob];W[od];B[pb]C[Due to black having a favourable ladder condition, thus play this variation is much better. Now how white going to settle down becomes a problem.]))
(;W[pf]C[a simple answer here is better, now how blacks defend his top side becomes a problem..]
(;B[pb];W[lc]C[if black trys to play 21, then invading at 22 is good.])
(;B[ld];W[ob]C[if black defends at 21, then closing the corner with 22 is also good. Notice the black stones are overconcentrated.])))
(;W[hc]C[Pinch on 3rd line, this threatens black's root.]))
(;B[eo];W[fo];B[do];W[gp];B[fn];W[gn];B[gm];W[fm];B[en];W[hn];B[hm];W[in];L[cg]
B[fl]C[Black can try this move to 9, check up this variation from joseki boo. Basically, the idea of black is to keep on playing white in this area while build up his stength to left side, all white gained at bottom side would be reduced by 7.  The risk of this variation is that white may use his thickness to invade black's bottum right moyo. But for black the gain at left side is huge, and future play at A is a good point.])
(;B[gp];W[en];B[cn];W[el];B[cl]C[This is also another playable choice, playing a strong pincer at 9. The normal continuation would be white jump to 10, black can just follows.  Up to 13, normally white could have attack 9 with the stength built by the two jumps, but due to 7, there is no possibilities. ])
(;B[dp];W[eo];B[dn]C[Somtimes this seldom played move introduced by Kitani could be a good try, by play the move at 9, this looks stupid, but if white plays to 10, the jump to 11 insists on build left side.  7 is at a very nice distance on reducing white's thickness. ]))