From: jzy@casbah.acns.nwu.edu (Jim Yu)
Subject: Dang Hu Games: Game 2
Organization: Northwestern University, Evanston Illinois.
Date: Sun, 26 Jul 1992 23:44:33 GMT

Hi, everyone.

Here is the 2nd game in the Dang Hu series.

This one is dedicated to *panx*!  My "brother" on IGS :-)  Panx was clearly
the best among the kibitzers, and his commentating was so attractive that
we have missed him badly since he "disappeared" from IGS.  Yes, he will be
back, but sooner the better.

An interesting observation: panx' real name, Pan Xiao Feng, has initials of
pxf, while one of the two great players we introduce here, Fan Xi Ping, has
initials of fxp.  So, pxf and fxp. :-)

Where are you, brother?! 

jzy, NR ^_^


(
;
GaMe[1]
VieW[]
SiZe[19]
AddBlack[dp][pd]
AddWhite[dd][pp]
Comment[Game 2

White: Fan Xi-Ping

Black: Shi Xiang-Xia]
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White[qf]
;
Black[fc]
;
White[kc]
;
Black[qk]
;
White[fq]
;
Black[kq]
;
White[ck]
;
Black[mc]
;
White[qi]
;
Black[cm]
;
White[mq]
;
Black[qn]
;
Comment[Obviously, W intends to develop a potential at the left.]
White[fd]
;
Black[gd]
;
White[ec]
;
Black[fb]
;
White[ge]
;
Black[fe]
;
White[ed]
;
Black[hd]
;
Comment[To here, it's a joseki even used today.]
White[gf]
;
Black[eb]
;
Comment[Here is a difference: D18 would be at C17 nowadays.  This is due to the different Go philosophy: Today, players would hate B to peak at C17; those days, however, players would rather have a "bad shape" of stones, they wouldn't let opponents to easily settle down \(note D18's effect on B F18 group\).]
White[db]
;
Black[cc]
;
White[dc]
;
Comment[This point \(J17\) is related to the "roots" of both sides; extremely important.]
Black[ic]
;
White[ke]
;
Black[if]
;
Comment[O16 is a common invading play seen in ancient records.  Today, W would play P15.  After B P16 and W O15, B has to protect the corner with S16.  Then W can play at L13, smoothly going.]
White[nc]
;
Black[nd]
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White[mb]
;
Black[oc]
;
White[nb]
;
Comment[Q14 is to protect W P15 \(if B plays N16 now, W P15 would give B headache\).]
Black[pf]
;
White[qe]
;
Black[md]
;
White[ob]
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Black[pb]
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White[lc]
;
Black[qd]
;
White[pg]
;
Comment[B certainly wants to play K18.  However, W Q15 would be difficult to handle.]
Black[pe]
;
Comment[W could consider K18 first.  After B J18, W L13; that would be better.]
White[kg]
;
Black[ph]
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White[pi]
;
Black[og]
;
White[qh]
;
Black[qg]
;
White[rg]
;
Black[jb]
;
Comment[Good timing.]
White[qb]
;
Black[pa]
;
White[qc]
;
Black[pc]
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White[rd]
;
Black[kb]
;
White[lb]
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Black[rc]
;
White[qo]
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Black[rn]
;
White[pg]
;
Black[re]
;
Comment[Let's pause and take a look.  Locally, W is advantageous -- after taking two B stones, W is thick and thus weakened the three B stones on the right.  Globally, however, B lived all the stones at the top side \(quite a bit of territory\), and B gains sente \(remember W played first\).  So B should be satisfied.]
White[oh]
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Comment[Invade.  Biggest point on the board.]
Black[ci]
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Comment[B still has C18.]
White[cg]
;
Black[eq]
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Comment[Interesting note: to E3, W normally plays either F4 or F2.  But in almost all the ancient Chinese games, W responded with F2.  Can't guess why.  However in this case, F2 is correct.]
White[fr]
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Black[ei]
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White[er]
;
Black[dr]
;
White[fo]
;
Black[ro]
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White[rp]
;
Comment[B certainly would like to have E6.  But after W L5 and B M4, Q6 would be a very good point for W.]
Black[hq]
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White[cr]
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Comment[C2 tests B's reaction, and B doesn't give in.  Thus conceives some unexpected variations later on.]
Black[ds]
;
Comment[Better to play H5 directly.]
White[pn]
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Black[pm]
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White[om]
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Black[on]
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White[po]
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Comment[Now W can't kill this B group: if \(W first\) S8, S9, S7, B has then good moves of T7 \(then W O7\) and P9.]
Black[pl]
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Comment[So W wisely chooses W H3 and L3 as the new targets.]
White[ho]
;
Black[qq]
Comment[W has to make a decision here.  If Q3, B S3 and the corner becomes B; also, the B group at the right is easily settled.  Then W has to bet all his money on the attacking upon H3 and L3.]
;
White[qp]
Comment[W obviously can't make up his mind \(to give up attacking B Q7 group\).  With this R3, Q3 exchange, B O3 would be powerful.]
;
Black[nq]
Comment[Now, if W plays O4, then \(B first\) N2, O2, P3, M2, and B P4 would force a collapse of W.  If W plays N4, after B N2 and W M2, B has a good move in P2, and W's corner would be killed.  If W plays another variation at M3, W would still fail after \(B first\) O4, L4, and Q3.]
;
White[nr]
Comment[So O2 is the only choice.]
;
Black[oq]
;
White[pq]
;
Black[or]
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White[pr]
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Black[mr]
;
White[lr]
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Black[lq]
;
White[ms]
;
Black[mp]
;
White[nm]
;
Black[no]
Comment[To here, W only manages to live a small part, and B is clearly successful.  Fortunately for W, he gets sente to have a play at the lower left corner.]
;
White[rl]
Comment[Too early.  Should save.]
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Black[rk]
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White[rm]
;
Black[nk]
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White[dn]
;
Black[cn]
;
White[co]
Comment[C5 is the only do-or-die strong move.  If D5, B would play C4 and W's territory would come up short.]
;
Black[do]
;
White[cq]
;
Black[dq]
;
White[bo]
;
Black[eo]
Comment[E5 looks clumsy, but it's in fact the key point.  If F4, expecting W G4, then B F4 would be a very good move.  However, against F4, W has E5 instead, and the result would be W swallowing C11 and E11 two B stones.]
;
White[fn]
;
Black[en]
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White[dm]
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Black[em]
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White[dl]
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Black[fp]
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White[gp]
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Black[fm]
Comment[F4 and F7 are powerful.]
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White[hr]
Comment[W certainly likes E9, but giving up H7 to B, and W's lower group could be in danger.]
;
Black[ir]
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White[gq]
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Black[cp]
;
White[bp]
;
Black[cl]
Comment[Great move!!  B is showing some tremendous calculation ability here.]
;
White[dk]
;
Black[bk]
;
White[bj]
;
Black[bl]
;
White[cj]
;
Black[bn]
;
White[br]
;
Black[ar]
;
White[aq]
;
Black[bs]
Comment[B makes no mistake and creates a big ko.]
;
White[ak]
;
Black[iq]
;
White[hm]
;
Black[cs]
;
White[as]
;
Black[gn]
;
White[go]
;
Black[ar]
;
White[ok]
Comment[W doesn't have any good ko threats.]
;
Black[ol]
;
White[nl]
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Black[mk]
;
White[pk]
;
Black[sm]
;
White[lm]
;
Black[so]
Comment[Good move to live.  If T8, which looks like a move to live, W would have T10, hitting the right spot, and B would have to live by ko. \(The sequence after W T10: S11, T11, T5, T9, R7, T6, T8, S10, R8, T7, T8, T7, and S7; ko.\)]
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White[as]
;
Black[ao]
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White[nn]
;
Black[oo]
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Comment[Losing move.  Right now the corner is a so-called "loose ko"; that is, no matter who wins the ko, he needs one more move to capture.  So F9 is an important point for W now.]
White[am]
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Black[ar]
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White[sl]
;
Black[ql]
;
White[as]
;
Comment[Mistake.  Should play E9 now.]
Black[sp]
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Comment[W missed the chance.  F9 is still the crucial point.  After B G8, W A2 and the outcome of the game is still uncertain.]
White[ar]
;
Comment[With this move and a series of sente moves followed, B gains global thickness, while W is in pieces.  Game over.]
Black[ek]
;
Comment[Editor: okay it's not over. :-\)  There are about 130 moves left, so I need to explain somewhat: each player put some bets down before teh game; the more one would win on the board, the more money he would win.  So they would play till the end. \(No comments rest of the way execpt an overview at the end.\)]
White[rq]
;
Black[bi]
;
White[an]
;
Black[sq]
;
White[sr]
;
Black[rr]
;
White[rs]
;
Black[ss]
;
White[sn]
;
Black[qm]
;
White[sr]
;
Black[dj]
;
White[al]
;
Black[ss]
;
White[fj]
;
Black[ej]
;
White[sr]
;
Black[el]
;
White[bm]
;
Black[ss]
;
White[sc]
;
Black[sd]
;
White[sr]
;
Black[kn]
;
White[lo]
;
Black[ln]
;
White[ll]
;
Black[ss]
;
White[os]
;
Black[mo]
;
White[sr]
;
Black[jl]
;
White[jm]
;
Black[km]
;
White[il]
;
Black[jk]
;
White[gm]
;
Black[ik]
;
White[hk]
;
Black[hj]
;
White[gk]
;
Black[eg]
;
White[lk]
;
Black[ss]
;
White[op]
;
Black[np]
;
White[sr]
;
Black[in]
;
White[hn]
;
Black[ss]
;
White[fi]
;
Black[fh]
;
White[sr]
;
Black[hh]
;
White[li]
;
Black[ss]
;
White[gh]
;
Black[gg]
;
White[sr]
;
Black[kh]
;
White[qr]
;
Black[lh]
;
White[mi]
;
Black[nj]
;
White[oj]
;
Black[ri]
;
White[io]
;
Black[jn]
;
White[jh]
;
Black[ki]
;
White[kj]
;
Black[ji]
;
White[jj]
;
Black[mh]
;
White[rj]
;
Black[qj]
;
White[ni]
;
Black[ij]
;
White[im]
;
Black[mr]
;
White[dh]
;
Black[eh]
;
White[ff]
;
Black[ef]
;
White[ee]
;
Black[cf]
;
White[bf]
;
Black[ce]
;
White[cd]
;
Black[be]
;
White[bd]
;
Black[hf]
;
White[gi]
;
Black[he]
;
White[ng]
;
Black[mg]
;
White[bg]
;
Black[dg]
;
White[ae]
;
Black[ns]
;
White[si]
;
Black[sj]
;
White[sh]
;
Black[sk]
;
White[nr]
;
Black[kr]
;
White[mq]
;
Black[hs]
;
White[mn]
;
Black[lp]
;
White[fk]
;
Black[df]
;
White[nf]
;
Black[mf]
;
White[ne]
;
Black[me]
;
White[mr]
;
Black[da]
;
White[ca]
;
Black[ea]
;
White[cb]
;
Black[ah]
;
White[jp]
;
Black[gr]
;
White[ch]
;
Black[di]
;
White[af]
;
Black[rf]
Comment[Black wins by 15 1/2 zi.

Overview: althogh each player made some mistakes, this is still a great game.  W 105 turned a black corner white, but B came right back with a great move 124.  Wonderful game.]
)
Newsgroups: rec.games.go