Problem	3962
Created	2004-02-20
Source	My mind
Rating

Difficulty	6 dan
Average Solve Time	44 secs
User Attempts	1091 / 3670
Solve Ratio Rating	4 kyu
	rating history

Analyse of the living status of the black group.

(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[白方]PB[黑方]AW[cn][dn][en][bo][fo][bp][fp][bq][fq][fr][fs]AB[cp][dp][ep][cq][eq][er][es]LB[hq:Y][iq:N]C[Is there something you can make for this group (Y) or is it totally dead and you should leave it as ko-threats (N) ?] (;B[hq]CR[hq] ;W[iq]CR[iq]C[Now please show how black can live.] (;B[br]CR[br] ;W[ar]CR[ar] (;B[dr]CR[dr] ;W[bs]CR[bs] ;B[cs]CR[cs]C[RIGHT Black can live if he wins the ko.]) (;B[bs]CR[bs] ;W[dr]CR[dr]) (;B[cs]CR[cs] ;W[dr]CR[dr])) (;B[cr]CR[cr] ;W[br]CR[br] (;B[dr]CR[dr] ;W[cs]CR[cs]C[This sequence is the one from the original game.]) (;B[cs]CR[cs] ;W[dr]CR[dr])) (;B[dr]CR[dr] ;W[br]CR[br] (;B[cs]CR[cs] ;W[cr]CR[cr]) (;B[cr]CR[cr] ;W[cs]CR[cs])) (;B[cs]CR[cs] ;W[br]CR[br] (;B[dr]CR[dr] ;W[cr]CR[cr]) (;B[cr]CR[cr] ;W[dr]CR[dr]))) (;B[iq]CR[iq]C[You are wrong, there is a way for the black group to live.]))