invalid problem set
Previous
|
Next
|
|
|
life and death
|
|
+6
|
|
Next
|
Problem | 11934 |
Created | 2008-11-02 |
Source | |
Rating | |
Difficulty | 2.9 kyu |
Average Solve Time | 59 secs |
User Attempts |
372 / 1172 |
Solve Ratio Rating | 4 kyu |
| rating history |
Black must live without ko
(;AB[ra]AB[rb]AB[sb]AB[qb]AB[qd]AB[qc]AB[rd]AB[pd]AB[qe]AB[ld]AB[lc]AB[lb]AW[mb]AW[mc]AW[pc]AW[pb]AW[od]AW[nd]AW[pe]AW[qf]AW[of]AW[re]AW[sd]AW[sc]AW[rf]AB[pa]C[Black to live unconditionally]AP[goproblems]
(;B[ma]
(;W[na]C[CHOICE]
(;B[nb];W[la]
(;B[oc]C[Very nice ;)RIGHT])
(;B[ob];W[oc])
(;B[oa];W[oc];B[ma]C[ko]))
(;B[oc];W[ob])
(;B[ob];W[oc]
(;B[nb];W[la])
(;B[la];W[nb]))
(;B[oa];W[nb]))
(;W[oa];B[ob]
(;W[qa];B[oc]C[RIGHT])
(;W[oc];B[na]C[RIGHT])))
(;B[ob];W[oc]
(;B[nb];W[ma])
(;B[na];W[ma])
(;B[ma];W[na]
(;B[nb];W[la])
(;B[la];W[nb]))
(;B[oa];W[ma]))
(;B[oc];W[ob]
(;B[oa];W[nb])
(;B[nb];W[nc]
(;B[oa];W[na])
(;B[na];W[ma])
(;B[ma];W[na]))
(;B[ma];W[na])
(;B[na];W[nb]))
(;B[nb];W[oc]C[];B[ma];W[oa];B[ob];W[qa]C[ko])
(;B[na];W[ma]
(;B[ob];W[oc])
(;B[oc];W[ob]
(;B[nb];W[nc])
(;B[oa];W[nb])))
(;B[oa];W[nb])
(;B[la];W[ma])
(;B[se];W[ma])
(;B[md];W[ma]))
Toggle next/previous buttons