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flag problem... (11) Well Constructed (10) Needs Fixing (1) Invalid Duplicate
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Problem 652
Created 2001-06-01
Source
Rating
Difficulty 13.3 kyu
Average Solve Time 40 secs
User Attempts
4716 / 13375
Solve Ratio Rating 5 kyu
rating history
Although this is a relatively easy problem, there are many Go players out there who commit endgame mistakes like this. I hope that this problem will raise the awareness of these players.
(
;
FF[4]
GM[1]
SZ[19]
AP[Jago:Version 5.00]
AB[pd][pe][pf][qe][rd][sc][og][ng][nf][nd][mc][oc][lc]
AW[re][rf][qf][pg][qh][sd][of][oh][nh][kc][kd][ld]
LB[sc:1]
C[Black 1 is an overplay. How can white punish black?]
GN[goproblem652]
(
;
W[rc]
;
B[se]
(
;
W[qc]
;
B[qd]
(
;
W[sb]
;
B[sd]
(
;
W[ra]
;
B[qb]
(
;
W[pb]
;
B[pc]
;
W[rb]
C[RIGHT]
)
(
;
W[pc]
;
B[pb]
)
(
;
W[rb]
;
B[pb]
)
)
(
;
W[pb]
;
B[ra]
(
;
W[ob]
;
B[nb]
(
;
W[qa]
;
B[rb]
LB[oa:a][sa:b]
C['a' and 'b' are miai.]
)
(
;
W[rb]
;
B[qa]
)
)
(
;
W[rb]
;
B[qa]
;
W[ob]
;
B[nb]
)
(
;
W[qa]
;
B[rb]
;
W[ob]
;
B[nb]
LB[oa:a][sa:b]
C['a' and 'b' are miai.]
)
)
(
;
W[qb]
;
B[ra]
)
(
;
W[rb]
;
B[pb]
)
)
(
;
W[pb]
;
B[rb]
)
(
;
W[qb]
;
B[sb]
)
(
;
W[rb]
;
B[pb]
)
)
(
;
W[sb]
;
B[sd]
(
;
W[qc]
;
B[qd]
(
;
W[ra]
;
B[qb]
(
;
W[pb]
;
B[pc]
;
W[rb]
C[RIGHT]
)
(
;
W[pc]
;
B[pb]
)
(
;
W[rb]
;
B[pb]
)
)
(
;
W[pb]
;
B[ra]
(
;
W[ob]
;
B[nb]
(
;
W[qa]
;
B[rb]
LB[oa:a][sa:b]
C['a' and 'b' are miai.]
)
(
;
W[rb]
;
B[qa]
)
)
(
;
W[rb]
;
B[qa]
;
W[ob]
;
B[nb]
)
(
;
W[qa]
;
B[rb]
;
W[ob]
;
B[nb]
LB[oa:a][sa:b]
C['a' and 'b' are miai.]
)
)
(
;
W[qb]
;
B[ra]
)
(
;
W[rb]
;
B[pb]
)
)
(
;
W[qb]
;
B[qc]
)
(
;
W[rb]
;
B[qc]
)
)
(
;
W[sf]
;
B[sd]
(
;
W[qc]
;
B[qd]
)
(
;
W[sb]
;
B[qd]
)
)
)
(
;
W[se]
;
B[rc]
C[Too good for black, allowing black to gain 2 points for his overplay.]
)
(
;
W[qc]
;
B[rc]
)
)
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