invalid problem set
Problem | 254 |
Created | 2000-11-01 |
Source | |
Rating | |
Difficulty | 7 dan |
Average Solve Time | 27 secs |
User Attempts |
1706 / 13683 |
Solve Ratio Rating | 2 dan |
| rating history |
(;GM[1]FF[3]
RU[Japanese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[1999-07-28]
SY[Cgoban 1.9.2]TM[30:00(5x1:00)];AW[qp][nq][pq][rq][pr]
AB[po][pp][qq][qr]
LB[pq:1][po:2][nq:3][qq:4][qp:5][pp:6][rq:7][qr:8][pr:9]
C[after 1 through 9, how should black play?
]
(;B[qo];W[rp]
(;B[ro];W[rr]
(;B[qk]
C[RIGHT
black loses a few points in the corner, but this is even, and better than saving corner
])
(;B[ql]C[too small extension
])
(;B[oq];W[or];B[op];W[qk])
(;B[pk]C[RIGHT
works
])
)
(;B[rr];W[ro];B[rn];W[sr];B[qm];W[qi])
)
(;B[rp];W[qo]
(;B[rr];W[qn]
(;B[pn];W[qm]
(;B[pm];W[ql]LB[ok:A]C[play at A?
]
(;B[ok];W[sq]C[uh oh, trap
]
(;B[sr];W[qs]
(;B[rs];W[ss])
(;B[sp];W[rs]C[black dead
])
)
(;B[ps];W[ro])
(;B[qs];W[ro])
)
(;B[pl];W[sq];B[sr];W[qs]
(;B[rs];W[ss])
(;B[sp];W[rs])
)
)
(;B[ps];W[pm]C[these stones are hurting
]TR[pn][po][pp])
)
(;B[ps]C[
];W[pn]TR[po][pp]
C[good protection, but marked stones are hurting
])
(;B[no];W[sq];B[sr];W[qs]
(;B[sp];W[rs])
(;B[rs];W[ss])
)
)
(;B[ro];W[qn];B[rr];W[rn]
(;B[sq]TR[po][pp]C[marked stones bad
])
(;B[pn];W[pm]
(;B[om];W[pl];B[nn];W[sq];B[sr];W[qs]
(;B[rs];W[ss])
(;B[sp];W[rs])
)
(;B[no];W[sq];B[sr];W[qs]
(;B[rs];W[ss])
(;B[sp];W[rs])
)
)
)
)
(;B[rr];W[rp]C[um, black's toast
])
(;B[qs];W[rp]C[huh?
])
(;B[ro];W[rp]C[not exactly
])
(;B[rs];W[rr])
(;B[oq];W[or]
(;B[op];W[rr])
(;B[rp];W[qo];B[rr];W[qn])
)
)
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