(
;
GM[1]
VW[]
FF[1]
DT[January 21, 1974]
SZ[19]
PB[Sakata Eio]
PW[Kato Masao]
C[ 21st Annual Nihon Kiin Championship, Title Match
 Played between Dec. 25, 1973 and Feb. 13, 1974
 Sakata Eio, Nihon Kiin Champion v. Kato Masao 8 dan ]
GN[n733]
EV[21st Annual Nihon Kiin Championship, Title Match]
;
B[pd]
C[ Game 3
 
 W: Kato \(K\)
 
 B: Sakata \(S\)
 
 Played on Jan. 21-22, 1974 at the Nihon Kiin, Central Japan Branch, Nagoya
 
 165 moves. B wins by resignation. Commentary based on that given by Sakata
 in KIDO]
;
W[dp]
C[ "Welcome! The Killer of Go!" Part 3
 
 The title here comes from the last chapter of "Killer of Go" and I used it
 as a title for one of the articles in the Summer 1994 issue of THE AMERICAN
 GO EXTRA. This 3rd game of the 21st Nihon Kiin Championship was the subject
 of that article, and those interested are referred to that issue. The
 material given here is supplementary, that could not be included.]
;
B[qp]
C[ After translating "Killer of Go", I had some thoughts on the subject, which
 I wanted to explore in THE AMERICAN GO EXTRA, but space considerations
 limited the material I could offer. An abbreviated account of the game is
 given here, along with some extra variations. -- Bob Terry]
;
W[dd]
C[ S: At the start of the game, I thought it was an easy win, but after 2 or 3
 bad moves, it became difficult. Then I hardly knew what was going on. I was
 lucky to win, but it shouldn't have become such a trial.]
;
B[fq]
;
W[dn]
;
B[kq]
;
W[nc]
;
B[pf]
;
W[jd]
;
B[ci]
;
W[iq]
;
B[ko]
;
W[cg]
;
B[cl]
C[ S: Instead of B15, I should have fenced W in with a move at B "a", a move
 that I had considered.]
LB [hp]
;
W[gp]
;
B[cq]
C[ If B doesn't play B17, a W diagonal move at W17 captures B here. \[As well as
 the corner.\]]
;
W[dq]
;
B[dr]
;
W[cp]
;
B[br]
;
W[bq]
;
B[cr]
;
W[gq]
;
B[fr]
;
W[gn]
;
B[ei]
C[ S: After W26 \(the marked stone\) a move at W "a" is severe, so B27 is
 unavoidable.]
LB [eh]
;
W[np]
;
B[pn]
;
W[lp]
;
B[kp]
;
W[nn]
;
B[oq]
C[ B33, etc., looks like it is played too low, but if B does not play here, W
 can attach at W "a", followed by complications after B "b", W "c", B33 and W
 "d".]
LB [qq]
;
W[nq]
;
B[or]
;
W[pl]
;
B[ol]
;
W[ok]
;
B[om]
;
W[nk]
;
B[mm]
;
W[ln]
;
B[ml]
;
W[kn]
;
B[mr]
C[ B plays low again at B45...]
;
W[kl]
;
B[pk]
;
W[pj]
;
B[qk]
;
W[qj]
;
B[rl]
;
W[rk]
;
B[ql]
C[ ...and takes territory with B53 in exchange for thickness in the center, but
 since B's marked stone neutralizes that thickness, this way of playing is
 acceptable.]
LB [ei]
;
W[rf]
C[ \[W54 is a good example of "Killer Kato's" style.\]]
(
;
B[rd]
C[ S: I didn't want to play B "a" instead of B55.]
;
W[qh]
;
B[oc]
C[ If now W answers at W "a", B attaches at B "b".]
LB [nd]
;
W[ob]
;
B[nd]
;
W[nb]
;
B[md]

(
;
W[lc]
C[ W62 cannot be played at W "a", but W62 was K's miss: it should have been
 played at W "b".]
LB [kc]
;
B[pb]
;
W[ec]

(
;
B[eg]
C[ S: Instead of simply playing at B65, I should have played at B "a", etc.]
;
W[ce]
;
B[he]
;
W[qb]
;
B[qa]
;
W[oe]
;
B[od]
;
W[dh]

(
;
B[fj]
C[ Instead of playing B73, B should have connected at B "a".]
;
W[gi]
;
B[eh]
;
W[gf]
;
B[gh]
C[ B77 should have been played at B "a".]
LB [hc]
;
W[hf]
;
B[mc]
;
W[qc]

(
;
B[mb]
C[ Since W had played the marked stone incorrectly, B could have connected at B
 "a" instead of playing B81.]
LB [lc]
(
;
W[qd]
C[ If W uses W82 to capture at W "a"...]
;
B[rb]
;
W[rc]
;
B[jb]
;
W[kb]
;
B[qe]
;
W[re]
;
B[pc]
;
W[sd]
;
B[jc]
;
W[kc]
;
B[id]
;
W[je]
;
B[ie]

(
;
W[le]
C[ S: W96 was a serious mistake on K's part. W "a" was a skillful move instead.]
;
B[jf]
;
W[ld]
;
B[ke]
;
W[kd]
;
B[if]
;
W[hc]
;
B[ic]
;
W[lg]
;
B[mf]
;
W[kg]
;
B[og]
;
W[hh]
;
B[ih]
;
W[hi]
;
B[ki]
;
W[ii]
;
B[jh]
;
W[li]
;
B[lj]
;
W[mi]
;
B[fe]
;
W[ge]
;
B[gd]
;
W[fd]
;
B[ff]
;
W[gg]
;
B[gc]
;
W[hk]

(
;
B[fl]
C[ Instead of B125, a move at B "a" was probably possible.]
;
W[ek]
;
B[fk]
;
W[bk]
;
B[hl]
;
W[il]
C[ \["Killer Kato" makes one last attempt to slaughter some stones. W130
 attempts to set up a 2-pronged attack on B's stones on the left side and on
 the upper side.\]]
;
B[hm]
;
W[kj]
;
B[im]
;
W[jk]
;
B[hb]
C[ \[B135 makes life for one group...\]]
;
W[jn]
C[ \[...so W separates B's left side group from the lower side.\]]
;
B[dm]
;
W[ck]
;
B[en]
;
W[di]
;
B[ej]
;
W[dk]
;
B[cn]
;
W[el]
;
B[fm]
;
W[fp]
C[ S: Working in W's advantage is the fact that W "a" threatens B's group in
 the lower left.]
LB [bo]
;
B[dj]
;
W[bo]
;
B[eq]

(
;
W[do]
C[ Connecting at W "a" instead of W50 leads to complex variations.]
;
B[bl]
;
W[bi]
;
B[em]
;
W[ar]
;
B[es]
;
W[nr]
;
B[ho]

(
;
W[io]
C[ If W158 at W "a"...]
;
B[hp]
;
W[hq]
;
B[hn]
;
W[fo]
;
B[ip]
;
W[bn]
;
B[lo]
C[ 165 moves. B wins by resignation. ])

(
;
W[go]
;
B[io]
;
W[jo]
;
B[jp]
;
W[ip]
;
B[jr]
;
W[bn]
;
B[ch]
;
W[bh]
;
B[dg]
;
W[bf]
;
B[bj]
;
W[cj]
;
B[ir]
C[   ...after the sequence to B14, if W "a", B "b" is sente against W's stones
   above, so W has no eyes in the lower left and cannot win a race to capture
   \(semeai\).]
LB [bm])
)

(
;
W[ep]
C[   S: The most likely result would be...]
;
B[cf]
;
W[df]
;
B[bl]
;
W[bi]
;
B[ch]
;
W[bh]
;
B[dg]
;
W[bf]
;
B[do]
;
W[em]
;
B[fn]
;
W[bn]
;
B[ho]
C[   ...the sequence to B14. Since B has a move at B "a" at his disposal, W
   cannot attack all out without threatening the life of the W group in the
   lower left.]
LB [bj])
)

(
;
B[oi]
;
W[oj]
;
B[ni]
;
W[mj]
;
B[mk]
;
W[kj]
;
B[lk]
;
W[nj]
;
B[kk]
;
W[jj]
;
B[hb]
C[   B defies W to try to capture the group on the left side.])
)

(
;
W[ic]
;
B[ib]
;
W[hc]
;
B[hb]
;
W[le]
;
B[gc]
;
W[if]
C[   If B does not answer W7, W ataris at W "a" and Attacks at W "b".]
LB [ge]
;
B[ge]
;
W[of]
C[   After W9, it is questionable if B can make 2 eyes.
   
   \[A rare miss by "Killer Kato".\]])
)

(
;
W[pc]
;
B[re]
;
W[pa]
;
B[na]
;
W[ra]
;
B[sb]
;
W[rb]
;
B[ma]
;
W[oa]
;
B[jb]
C[   ...through B10, B makes inroads on the upper side.])
)

(
;
B[pc]

(
;
W[mb]
C[   Since W2 does not work out well, K said that he would have played at W
   "a".]
;
B[kc]
;
W[ld]
;
B[kd]
;
W[le]
;
B[kb]
;
W[lb]
;
B[ke]
;
W[ra]
;
B[pa]

(
;
W[rc]
;
B[sc]
;
W[sb]
;
B[sd]
C[   After exchanging W "a" for B "b", W can play the marked stones in the
   corner, making a dead, "flowery six" shape \(nakade\) to kill B's corner.
   But at W12 in this variation, that question is dealt with.]
LB [lf])

(
;
W[lf]
;
B[kf]
;
W[rc]
;
B[sb]
C[     B4 is the vital point to avoid problems.]
;
W[qd]
;
B[qe]
;
W[re]
;
B[sd]
;
W[rb]
;
B[sc]
;
W[pe]
;
B[qf]
;
W[of]
C[     Now capturing W's stones in the corner threatens a move at B "a", so B
     is in no danger.]
LB [rg])
)

(
;
W[hh]
;
B[kc]
;
W[jc]
;
B[kb]
;
W[kd]
;
B[ld]
;
W[lb]
;
B[jb]
;
W[ib]
;
B[mb]
C[     B makes a lot of profit through B10, while W...]
;
W[ck]
C[     ...attacks with the finesse \(tesuji\) of W11 &...]
;
B[dk]
;
W[dj]
C[     ...W13.]
;
B[cj]
;
W[ek]
;
B[bk]
;
W[di]
;
B[el]
;
W[fk]
C[     In this variation, B can aim at the cut at "a" by playing at "b", and
     also has the cross-cut of B "c" to use.]
LB [ie])
)
)

(
;
B[di]
;
W[eh]
;
B[fh]
;
W[fi]
;
B[fj]
;
W[gi]
;
B[gh]
;
W[gj]
;
B[hh]
;
W[fk]
;
B[ej]
;
W[gk]
;
B[bf]
)
)

(
;
B[ce]
;
W[cd]
;
B[bd]
;
W[bc]
;
B[eg]
;
W[df]
;
B[he]
C[   The sacrifice of B's marked stones means that W cannot poke at W "a".]
LB [dh])
)

(
;
W[qc]
;
B[pc]
;
W[pb]
;
B[qb]
;
W[rb]
;
B[lc]
)
)

(
;
B[oc]
;
W[nd]
;
B[rd]
;
W[qe]
;
B[pe]
;
W[qc]
;
B[qd]
;
W[ob]
)
)