invalid problem set
Problem | 730 |
Created | 2001-06-15 |
Name | A beautiful tesuji |
Source | The 1971 Honinbo Tournament |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 39 secs |
User Attempts |
160 / 2767 |
Solve Ratio Rating | 5 dan |
| rating history |
Taken from the 1971 Honinbo
Tournament played between
Rin Kaiho 9p (Honinbo) and
Ishida Yoshi 7p (Challenger).
Ishida won the series 4-2 to become
the youngest Honinbo ever at an age of 22.
A present day picture of Ishida Yoshi
can be seen on my personal
goproblems.com page.
(;GM[1]
FF[4]
AP[Hibiscus:2.1]
SZ[19]
ST[3]
;C[White to play an interesting
combination...]
PL[W]
AB[cp][dc][dh][dk][eq][fd][jc][ng][no][of][po][qg][qk][qp][qq]
AW[bc][ce][df][ip][lp][nc][nq][pd][ph][pq][qd][qi][qr][rr]
(;W[nj]
MN[1]
(;B[mh]
LB[mh:2][mh:2](;W[ql]
C[RIGHT
See next problem for black's answer.]
)(;W[pk]
;B[ql]
C[White gains nothing from this
exchange.]
)(;W[lj]
;B[pj]
;W[oi]
LB[oi:5][pi:A]C[White has a critical weakness at 'A'.]
)(;W[pj]
;B[pl]
;W[lj]
C[This is too easy on black.]
))(;B[oi]
;W[pj]
)(;B[pj]
C[The correct move.]
;W[nh]
;B[lg]
;W[oh]
;B[pf]
;W[li]
))(;W[nh]
;B[mh]
(;W[oh]
;B[od]
;W[oc]
;B[mf]
;W[mi]
;B[lh]
C[White is trailing behind.]
)(;W[ni]
;B[lg]
C[Ishida wouldn't be happy with this
result.]
))(;W[ni]
C[Bad shape.]
;B[pj]
;W[nh]
;B[lg]
)(;W[pk]
;B[ql]
C[This only helps black]
)(;W[oj]
;B[pj]
(;W[oi]
;B[ok]
C[White has a weakness at 'A']
LB[ok:5][pi:A])(;W[ok]
;B[pl]
;W[nh]
;B[mh]
;W[oh]
;B[od]
;W[oc]
;B[mf]
;W[mj]
C[Black is doing fine.]
)(;W[nh]
;B[mh]
;W[oh]
;B[od]
;W[oc]
;B[mf]
(;W[mi]
;B[lh]
;W[ok]
;B[pl]
C[Black is doing fine.]
)(;W[ok]
;B[pl]
;W[mi]
;B[lh]
C[Black is doing fine.]
)))(;W[pg]
;B[pf]
;W[qf]
;B[qe]
;W[rf]
;B[re]
;W[rg]
;B[pe]
C[Very bad as white's corner is greatly
diminished and his group isn't even
100% alive]
)(;W[ok]
;B[pj]
(;W[oi]
;B[mh]
C[White has bad shap and can't do
anything special-]
)(;W[nh]
;B[mh]
(;W[oh]
;B[od]
;W[oc]
;B[lg]
;W[oj]
;B[pl]
;W[mj]
;B[kj]
C[White is heavy.]
)(;W[ni]
;B[lg]
C[White is heavy.]
))))
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