From: jzy@casbah.acns.nwu.edu (Jim Yu)
Subject: Dang Hu Games: Game 3
Organization: Northwestern University, Evanston Illinois.
Date: Wed, 29 Jul 1992 23:09:55 GMT

Hi everyone!

I have received a few suggestions thus far.  Thanks a lot.  However, some
changes will not be made immediately (such as adding some variations) since
it will take too much time.  My plan is to post these games first, and
re-edit the comments and add variations in the future.  When *that* is
finished, I will probably submit these commented games to milton ftp site.

This is the 3rd game, and this game is dedicated to *ychen 6d*.  He has
been a good friend I made on IGS although we've never met.  I respect him
not just because he's one of the best players on the server (in fact, I
wasn't so happy when he beat me up :) but also, he is one of the nicest
person around.

If ychen 6d had the honor to play Jiang Zhujiu pro 9 dan's first game on
IGS, then I had the honor to play *his* first game on IGS. :-)

jzy NR ^_^

(
;
EVent[Dang Hu Games: Game 3]
PlayerBlack[Fan Xi-Ping]
PlayerWhite[Shi Xiang-Xia]
DaTe[1739]
PlaCe[Dang Hu, China]
GaMe[1]
VieW[]
SiZe[19]
GameName[Shi vs. Fan]
REsult[B+29]
KoMi[-2]
Comment[Game 3

White: Shi Xiang-Xia

Black: Fan Xi-Ping]
AddBlack[dp][pd]
AddWhite[dd][pp]
;
White[qf]
;
Black[qk]
;
White[fq]
;
Black[kq]
;
White[kc]
;
Black[ci]
;
White[mq]
;
Black[fc]
;
White[ck]
;
Black[cm]
;
White[fo]
Comment[Ancient style.  One on hand, it isolates B L3; on the other hand, it offers help to W C9.  Nowadays, however, this move is usually played at C13 since W C9 won't be easily attacked.]
;
Black[qn]
Comment[Again, today, this move would be played at C14 to isolate W C9.]
;
White[cg]
Comment[Overall, despite the different styles, the principle of Go has been the same.]
;
Black[ic]
Comment[Very common in ancient Chinese games.  But in this game, this move is not appropriate.]
;
White[dn]
;
Black[cn]
;
White[dm]
Comment[W D6 and D7 are tight and strong, great timing too.  Perhaps B overlooked this severe move by his opponent.]
;
Black[do]
Comment[If played at C4, B looks like to get sente but in fact he will not \(after B C4 and W C8, if B plays somewhere else, W has D2\).]
;
White[dl]
Comment[Previously isolated C9 and F3 two W stones now are connected, thus W obtains remarkable potential.  This is clearly B J17's fault --J17 should have been at E6 or E7.]
;
Black[er]
Comment[D2 looks more flexible, but W E2 would give B some headache.]
;
White[fr]
;
Black[eq]
Comment[Important.  Otherwise W can play C3 next.]
;
White[ko]
Comment[Cap.  Good!  \(Fan, playing B, later explained in one of his books how B should play after W cap: If M4, W Q6 and B is difficult.  So B should try O3, the so-called "3-6 invasion."\)]
;
Black[ei]
Comment[Escaping one stone and reduce W's middle potential.  Important.]
;
White[bp]
;
Black[bo]
;
White[cq]
;
Black[br]
Comment[Against W B4 and C3, B B5 and B2 are appropriate.  However, B is safe only because his stones have more liberties.  Therefore, B's outside actions are limited.]
;
White[gi]
Comment[Key point of the whole board.  The two caps of L5 and G11 display Shi's \(playing W\) extraordinary feeling and skill.]
;
Black[fn]
Comment[Too early.]
;
White[eo]
;
Black[cf]
Comment[Maybe better at E13.  C14 invasion could lead a heavy shape of B.]
;
White[df]
;
Black[bg]
;
White[dg]
;
Black[be]
;
White[ce]
;
Black[bf]
;
White[bd]
;
Black[ee]
;
White[de]
;
Black[cj]
;
White[bk]
;
Black[cc]
Comment[Too casual.  After W D17, B won't have any good moves to follow.]
;
White[dc]
;
Black[fi]
;
White[gj]
;
Black[fg]
;
White[fd]
Comment[Powerful.  And B C17's inappropriateness is even more clear.]
;
Black[gh]
;
White[ek]
;
Black[fj]
;
White[fk]
;
Black[gk]
Comment[B F10 and G9 seem to be too strong.  But B is clearly trailing, so there is no way but applying a fierce attack on W's corner, hoping a result that would influence the center.]
;
White[ij]
;
Black[gl]
;
White[il]
;
Black[cb]
Comment[Key point of attack.]
;
White[cd]
Comment[Almost the losing move.  G17 is simple and clear.  If B C16 to get the corner, W F18 and B's overall territory still can't compete with W.  F18 could be the strongest move against W G17, but W G16 is cool.  After B G18 and W J16, W's lead is clear.]
;
Black[db]
;
White[ec]
;
Black[eb]
;
White[gc]
;
Black[fb]
;
White[gf]
Comment[Thin, but no other choice.  If W doesn't attempt to reduce B's forces at middle, upper left's W group would be in a more dangerous situation.]
;
Black[ih]
;
White[ii]
;
Black[ef]
Comment[Big mistake.]
;
White[ff]
;
Black[eg]
;
White[ed]
Comment[To here, a seemingly won game by B becomes complicated again.  B E14 sould be at J15.]
;
Black[ie]
;
White[hd]
;
Black[id]
;
White[hb]
;
Black[gb]
;
White[hc]
;
Black[ib]
;
White[ia]
;
Black[jb]
;
White[bb]
;
Black[bc]
;
White[ac]
;
Black[ab]
;
White[aa]
;
Black[he]
;
Comment[B H15 and W G16 are both mistakes.  When B H15, W H19 and W can kill B corner by one liberty -- B H15 wouldn't have worked and W G16 missed it.  This kind of calculation should have been trivial to Fan and Shi.  It's incredible that they made these mistakes.]
White[gd]
;
Black[ca]
;
White[ha]
;
Black[ba]
;
White[hg]
;
Black[hh]
;
White[ig]
;
Black[jg]
;
White[jf]
;
Black[if]
;
White[kb]
;
Black[kf]
;
White[jh]
;
Black[kg]
;
White[ja]
;
Black[ji]
;
White[jj]
;
Comment[Up to here, local fight comes to a pause.  B captures two stones, thick and easy.  On the other hand, W escaped from line one, extremely painful.  B takes the upper hand in the battle, but also lost G8 and G9.  The outcome is still in doubt.]
Black[ki]
;
Comment[Too strong.  Although "psychologically", L10 seems to be absolute, but when the big group on the top is yet settled, L10 is too much.]
White[kj]
;
Comment[M16 should be at O17, then W would be difficult.]
Black[ld]
;
White[li]
;
Black[kh]
;
White[mc]
;
Black[oc]
;
Comment[W N17 and L16 are good order.]
White[kd]
;
Black[ke]
;
White[me]
;
Comment[B has no choice.  If M15, after WN16, B O14 wouldn't be able to cover W \(W has N14 and P15 etc\).]
Black[nf]
;
White[le]
;
Black[nb]
;
White[ne]
;
Black[of]
;
White[mg]
;
Black[mf]
;
White[lf]
;
Black[lg]
;
White[mh]
;
Black[oe]
;
White[ad]
;
Black[ab]
;
White[bh]
;
Black[ch]
;
White[bi]
;
Black[bj]
;
White[ae]
;
Black[ai]
;
White[ag]
;
Black[ah]
;
White[bh]
;
Black[bi]
;
White[af]
;
Black[bh]
;
White[dh]
;
Black[di]
;
Comment[Absolutely necessary.  If omitted, B A9 and B can kill W with a "worry-free" ko.  Now it's a seki between the two big teams.]
White[ak]
;
Comment[Cut.  Can't win without this.]
Black[lj]
;
White[mj]
;
Black[lk]
;
White[mk]
;
Black[ll]
;
Comment[Not good.  Should be P9, light and flexible.  After P9, if B M6, W N7, B M7, and W J6.  W would be in a good form to fight.]
White[ml]
;
Black[lm]
;
Comment[W now has to protect.  If N7, B J7 is a good move.]
White[jm]
;
Comment[Powerful.  W is now difficult.]
Black[mm]
;
Comment[Losing move.  Should be P8.]
White[nm]
;
Comment[Apparently, W didn't expect B to cut, but when B does cut, it's too late for W to regret.]
Black[nl]
;
Comment[No choice.  If O6, B O9 is good move, and W can't escape.]
White[oj]
;
Comment[Good move.  Since B O11 is sente, W can't atari at P8.]
Black[ok]
;
White[pj]
;
Black[nn]
;
White[om]
;
Black[pk]
;
White[qj]
;
Black[on]
;
White[pm]
;
Comment[B captures three W stones and is clearly winning.]
Black[pn]
;
White[oh]
;
Black[go]
;
White[gn]
;
Comment[Sente to reduce W's territory.]
Black[lp]
;
White[ho]
;
Comment[Beautiful invasion to solidify upper right corner.]
Black[qh]
;
White[pg]
;
Black[ni]
;
White[mi]
;
Black[nh]
;
White[ng]
;
Black[og]
;
White[oi]
;
Black[ph]
;
White[rf]
;
Black[rh]
;
White[ri]
;
Black[pf]
;
White[qg]
;
Black[qe]
;
White[sh]
;
Black[sg]
;
White[si]
;
Black[re]
;
White[qi]
;
Black[rk]
;
White[pi]
;
Comment[With sente, B gets the lower right corner.  B is extending his winning margin.]
Black[qq]
;
White[pq]
;
Black[pr]
;
White[or]
;
Black[rr]
;
White[ps]
;
Black[qr]
;
White[kr]
;
Black[gp]
;
White[hp]
;
Black[jr]
;
White[lr]
;
Black[hn]
;
White[gm]
;
Black[io]
;
White[hq]
;
Black[jp]
;
White[jo]
;
Black[hm]
;
White[fm]
;
Black[np]
;
White[ep]
;
Black[dq]
;
White[cr]
;
Black[bs]
;
White[ir]
;
Black[ks]
;
White[mp]
;
Black[kn]
;
White[mo]
;
Black[jn]
;
White[hl]
;
Black[lo]
;
White[no]
;
Black[in]
;
White[qp]
;
Black[rp]
;
White[mb]
;
Black[nc]
;
White[lc]
;
Black[la]
;
White[ka]
;
Comment[Black wins by 14 1/2 zi.

Overview: W grabbed an early lead.  But in the battle at the upper left corner, W 59, a huge mistake, gave B the chance.  B thereafter played better and better, looking like a complete different player from the "first half."

Quite a few good moves in the game.  However, casual moves like B 68, B 86 and W 87 left some "spots on the jade."]
Black[ma]
)
Newsgroups: rec.games.go