Problem 5841 goproblems.com


Author	santa c	Created	2005-01-17
Difficulty	6 dan (history)	Source	A recent lecture
AVG solve time	47 sec	Stars	5 (4 votes)
User attempts	140 / 1903	Collections	Basic Shape, Corner based
Genre	life and death ⓒ	Your attempts	N/A
Similar problems
Created	2005-01-17
Source	A recent lecture
Stars	5 (4 votes)
Collections	Basic Shape, Corner based
Your attempts	N/A

(;AW[cc]AW[ce]AW[cd]AW[ed]AW[ee]AW[gd]AW[gc]AW[hc]AW[ic]AW[ib]AB[hb]AB[gb]AB[fa]AB[fc]AB[ec]AB[dc]C[White moves and wipes black off the board, right? ;)]AP[goproblems] (;W[eb];B[cb] (;W[bb];B[ba] (;W[db];B[da]C[So it's a ko? Playing at C19 means you think it's a ko. :)] (;W[ac];B[ha]C[So it's a ko? Playing at C19 means you think it's a ko. :)] (;W[aa];B[ab]MA[aa];W[ca]C[Well done! Double ko! :)RIGHT]MA[cb]) (;W[ca]C[Incredibly close but not a ko.]MA[cb])) (;W[ca]MA[cb]C[Incredibly close but not a ko.]) (;W[ha];B[bc];W[ca]MA[cb]C[:(]) (;W[ab];B[bc] (;W[ca]MA[cb]C[:(]) (;W[ac];B[ha] (;W[ca]C[:(]MA[cb]) (;W[bd];B[ea];W[ca]MA[cb]C[:(])) (;W[bd];B[ha] (;W[ca]C[:(]MA[cb]) (;W[ac];B[ea];W[ca]C[:(]MA[cb])) (;W[ha];B[ac];W[ca]MA[cb]C[:(]) (;W[ad];B[ha] (;W[ca]C[:(]MA[cb]) (;W[bd];B[ea] (;W[ca]MA[cb]C[:(]) (;W[ac];B[ca]C[:(])) (;W[ac];B[ea] (;W[ca]C[:(]MA[cb]) (;W[bd];B[ca]C[:(]))))) (;W[ac];B[ha];W[db];B[da]C[So it's a ko? Playing at C19 means you think it's a ko. :)] (;W[aa];B[ab]MA[aa];W[ca]MA[cb]C[Well done! A double ko! :)RIGHT]) (;W[ca]MA[cb]C[Incredibly close but not a ko.])) (;W[bc];B[ha];W[db];B[da];W[ca]MA[cb]C[:(]) (;W[ab];B[bc] (;W[db];B[da] (;W[ha];B[ac];W[ca]MA[cb]C[:(]) (;W[ac];B[ha] (;W[ca]C[:(]MA[cb]) (;W[bd];B[ea];W[ca]C[:(]MA[cb])) (;W[bd];B[ha] (;W[ca]C[:(]MA[cb]) (;W[ac];B[ea];W[ca]MA[cb]C[:(])) (;W[ad];B[ha] (;W[ca]C[:(]MA[cb]) (;W[ac];B[ea];W[ca]C[:(]MA[cb]) (;W[bd];B[ea];W[ca]C[:(]MA[cb]))) (;W[bd];B[ha] (;W[db];B[da];W[ca]C[:(]MA[cb]) (;W[fb];B[db]C[:(]) (;W[da];B[db]C[:(]) (;W[ac];B[db]C[:(])) (;W[ac];B[ha] (;W[db];B[da];W[ca]C[:(]MA[cb]) (;W[fb];B[db]C[:(]) (;W[da];B[db]C[:(]) (;W[bd];B[db]C[:(])) (;W[ha];B[ac] (;W[db];B[da];W[ca]C[:(]MA[cb]) (;W[da];B[db]C[:(]))) (;W[ha];B[bc] (;W[fb];B[db] (;W[ga];B[ab]C[:(]) (;W[ab];B[ea]C[:(])) (;W[db] (;B[ab]C[Or ko with D19 instead... :(]) (;B[da] (;W[ca]C[:(]MA[cb]) (;W[ab];B[ac];W[ca]C[:(]MA[cb]))) (;W[ab]C[];B[ac];W[db];B[da];W[ca]MA[cb]C[:(]))) (;W[ha];B[bc] (;W[ba];B[db]C[] (;W[ea];B[ca]C[:(]) (;W[ca];B[da]C[:(]) (;W[bb];B[ca]TR[ac]TR[ea]C[:(])) (;W[ab];B[ba] (;W[db];B[da];W[bb];B[ac];W[ca]MA[cb]C[:(]) (;W[fb];B[db];W[ga];B[da]C[:(]) (;W[bb];B[ac] (;W[db];B[da];W[ca]MA[cb]C[:(]) (;W[fb];B[db];W[ga];B[da]C[:(]) (;W[da];B[db]C[:(])) (;W[da];B[db]C[:(])) (;W[fb];B[db];W[ga];B[ba]C[:(]TR[da]TR[ab]) (;W[db];B[da] (;W[bb];B[ba] (;W[ab];B[ac];W[ca]MA[cb]C[:(]) (;W[ca]MA[cb]C[:(])) (;W[ab];B[bb]C[:(]) (;W[ba];B[bb]C[:(])) (;W[bb];B[ba] (;W[db];B[da] (;W[ca]MA[cb]C[:(]) (;W[ab];B[ac];W[ca]C[:(]MA[cb])) (;W[ab];B[ac] (;W[db];B[da];W[ca]C[:(]MA[cb]) (;W[fb];B[db];W[ga];B[da]C[:(]) (;W[da];B[db]C[:(])))) (;W[fb];B[db]C[:(]) (;W[db];B[bb] (;W[fb];B[da]C[:(]) (;W[ha];B[da]C[:(]))) (;W[ha];B[cb] (;W[bb];B[eb] (;W[ca];B[da];W[db]MA[cb]C[:(]) (;W[da];B[ca]C[:(])) (;W[eb];B[bc] (;W[db];B[da];W[bb];B[ba] (;W[ca]MA[cb]C[:(]) (;W[ab];B[ac];W[ca]C[:(]MA[cb])) (;W[bb];B[ba] (;W[db];B[ab]C[:(]) (;W[ab];B[ac] (;W[db];B[da];W[ca]C[:(]MA[cb]) (;W[fb];B[db];W[ga];B[da]C[:(]))) (;W[ba];B[db] (;W[ea];B[ca]C[:(]) (;W[ca];B[da]C[:(]) (;W[bb];B[ca]TR[ea]TR[ac]C[:(])) (;W[ab];B[ba] (;W[bb];B[ac];W[db];B[da];W[ca]C[:(]MA[cb]) (;W[db];B[da];W[bb];B[ac];W[ca]MA[cb]C[:(]) (;W[fb];B[db];W[ga];B[da]C[:(]) (;W[da];B[db]C[:(])) (;W[fb];B[db];W[ga];B[ba]C[:(]TR[da]TR[ab]))) (;W[db];B[eb] (;W[ca];B[ha];W[ea];B[da]MA[ea]C[:(]) (;W[ha];B[cb]C[:(]) (;W[cb];B[ha]C[:(]) (;W[bb];B[ha]C[:(])) (;W[cb];B[ha] (;W[da];B[ea]C[Thanks to the extra two liberties, wE18 doesn't work! :)]MA[dd]MA[fd]MA[eb]) (;W[db];B[eb]C[:(]) (;W[eb];B[db]C[:(])) (;W[ca];B[ha] (;W[db];B[eb];W[ea];B[da]MA[ea]C[:(]) (;W[ea];B[db] (;W[da];B[cb];W[bb];B[ba];W[aa];B[eb]C[:(]) (;W[cb];B[da]C[:(])) (;W[da];B[ea]C[:(]) (;W[eb];B[db]C[:(])) (;W[da];B[ha]TR[ea]TR[cb]C[:(]) (;W[bb];B[ha] (;W[db];B[eb]C[:(]) (;W[da];B[eb]C[:(]) (;W[eb];B[db]C[:(])))