Problem 21031 goproblems.com


Author	Xenor	Created	2016-03-30
Difficulty	13 kyu (history)	Source	Game on KGS (slightly modified).
AVG solve time	55 sec	Stars	4.57 (7 votes)
User attempts	632 / 1642	Collections	Game based
Genre	tesuji ⓒ	Your attempts	N/A
Similar problems
Created	2016-03-30
Source	Game on KGS (slightly modified).
Stars	4.57 (7 votes)
Collections	Game based
Your attempts	N/A

(;AB[bs]AB[br]AB[cq]AB[cp]AB[do]AB[dn]AB[dm]AB[cl]AB[ck]AB[cj]AW[dj]AW[ej]AW[dl]AW[el]AW[em]AW[en]AW[eo]AW[dp]AW[dq]AW[cr]AW[cs]AW[er]AW[co]TR[co]C[White tries a desperate move. Our mighty Blackura must defend the fort without any loss !]AP[goproblems] (;B[bo];W[cn];B[cm];W[bn] (;B[bp]C[Well done, once again !!RIGHT]) (;B[bm];W[bq] (;B[bp];W[aq] (;B[an];W[ar]C[Ooops !!]) (;B[ap];W[ao]C[Ooops !!]) (;B[ao];W[ar]C[Ooops !!]) (;B[ar];W[as]C[Ooops !!])) (;B[an];W[bp];B[co];W[ar]C[Ooops !!])) (;B[an];W[bq];B[bp];W[aq] (;B[bm]) (;B[ap];W[ao]C[Ooops !!]) (;B[ar];W[as]C[Ooops !!]) (;B[ao];W[ar]C[Ooops !!])) (;B[bq];W[ao] (;B[bp]C[Well done, once again !!RIGHT]) (;B[ap];W[bp]C[Why this ko ?]) (;B[aq];W[bp] (;B[ap]) (;B[bm]))) (;B[ap]C[Well done, once again !!RIGHT]) (;B[aq];W[bp] (;B[bq];W[ao] (;B[ap];W[ar];B[bo]C[Ko, this is not enough !]) (;B[bm];W[ap]C[Ooops !!])) (;B[ao];W[bq]C[Ooops !!])) (;B[ao];W[bq];B[bp];W[aq] (;B[bm]) (;B[an]) (;B[ap];W[an]C[Ooops !!]) (;B[ar];W[as]C[Ooops !!])) (;B[ar];W[bp];B[bq];W[ap] (;B[bm];W[ao];B[am];W[aq]C[Ooops !!]) (;B[am];W[an];B[bm];W[ao]C[Seki, this is not enough !]) (;B[an];W[bm] (;B[bl];W[ao]C[Black's corner is doomed !!]) (;B[aq];W[as]C[Ooops !!]) (;B[am];W[bl]C[This is going nowhere !])))) (;B[cm];W[bo] (;B[bp];W[ap];B[bq];W[aq]C[Ooops !!]) (;B[ap];W[bp];B[bq];W[ar] (;B[aq];W[ao]C[Ooops !!]) (;B[ao];W[aq];B[as];W[aq]C[Ooops !!]) (;B[bn];W[aq];B[as];W[aq]C[Ooops !!]) (;B[cn];W[aq];B[as];W[aq]C[Ooops !!])) (;B[aq];W[bp];B[bq];W[ap]C[Ooops !!]) (;B[bq];W[bp] (;B[bn];W[aq]C[Black's corner is doomed !!]) (;B[aq]) (;B[ar];W[ap]C[Black's corner is doomed !!]) (;B[ap]) (;B[cn];W[aq]C[Black's corner is doomed !!]))) (;B[cn];W[bo] (;B[bn];W[bq]C[Ooops !!]) (;B[bp];W[ap];B[bq];W[bn];B[cm];W[aq]C[Black's corner is doomed !!]) (;B[bq];W[bn];B[cm];W[bp] (;B[aq];W[ap]C[Ooops !!]) (;B[ar];W[ap]C[Black's corner is doomed !!]) (;B[ap];W[ar] (;B[aq];W[ao]C[Ooops !!]) (;B[ao];W[aq];B[as];W[aq]C[Ooops !!])) (;B[bm];W[aq]C[Black's corner is doomed !!]) (;B[ao];W[aq] (;B[ap];W[ar]) (;B[ar];W[as]C[Ooops !!]))) (;B[ap];W[bn];B[cm];W[bp];B[bq]) (;B[aq];W[bn];B[cm];W[bp];B[bq]) (;B[ar];W[bq]C[Ooops !!])) (;B[bn];W[bo] (;B[bp];W[ap];B[bq]C[Well done, once again !!RIGHT]) (;B[ap];W[cm];B[cn];W[bm]C[Ooops !!]) (;B[bq];W[cm];B[cn];W[bm]C[Ooops !!]) (;B[aq];W[cm];B[cn];W[bm]C[Ooops !!]) (;B[cn]) (;B[ar];W[bq]C[Ooops !!]) (;B[ao];W[bq]C[Ooops !!])) (;B[bp];W[cm]C[Ooops !!]) (;B[bq];W[cm]C[Ooops !!]) (;B[bm];W[bo] (;B[bp];W[ap];B[bq];W[aq]C[Ooops !!]) (;B[ap];W[bp];B[bq];W[ar] (;B[aq]C[Ooops !!]) (;B[ao];W[aq];B[as];W[aq]C[Ooops !!]) (;B[cn];W[aq];B[as];W[aq]C[Ooops !!]) (;B[bn];W[aq];B[as];W[aq]C[Ooops !!])) (;B[bq];W[bp] (;B[aq];W[ap] (;B[cn];W[ar]C[Ooops !!]) (;B[bn];W[ar]C[Ooops !!])) (;B[ar];W[ap] (;B[cn];W[aq]C[Ooops !!]) (;B[bn]C[Ooops !!])) (;B[ap]) (;B[bn];W[aq]C[Ooops !!]) (;B[cn];W[aq]C[Ooops !!]) (;B[ao];W[aq] (;B[ap];W[ar]) (;B[bn];W[ar]C[Ooops !!]) (;B[cn];W[ar]C[Ooops !!]))) (;B[aq];W[bp];B[bq];W[ap]) (;B[ar];W[bq]C[Ooops !!])))