Problem	13330
Created	2009-12-27
Name	tp001
Source
Rating

Difficulty	30 kyu
Average Solve Time	16 secs
User Attempts	13414 / 15995
Solve Ratio Rating	30 kyu
	rating history

The black group is in danger, but can be made safe in an instant.

(;AB[qa]AB[qb]AB[rb]AB[rc]AB[pc]AB[nc]AB[oc]AB[nb]AW[na]AW[ma]AW[mb]AW[mc]AW[ob]AW[pb]AW[nd]AW[ne]AW[pe]AW[qc]AW[qd]AW[rd]C[Save marked stones]TR[nb]TR[nc]TR[oc]TR[pc]AP[goproblems] (;B[oa]C[];W[pa];B[oa]C[RIGHT]) (;B[pa];W[oa]) (;B[sc];W[oa];B[sa]))