Problem 21304 goproblems.com


Author	aik	Created	2016-08-13
Difficulty	1 dan (history)	Source	N/A
AVG solve time	81 sec	Stars	2.2 (5 votes)
User attempts	178 / 642	Collections	N/A
Genre	life and death ⓢ	Your attempts	N/A
Similar problems
Created	2016-08-13
Source	N/A
Stars	2.2 (5 votes)
Collections	N/A
Your attempts	N/A

(;FF[4]SZ[9]C[Black can start a ko here.] AB[ha][cb][hb][ac][bc][gc][hc][bd][cd][dd][hd][de][he][df][ef][hf][fg][gg] AW[ga][ab][bb][eb][gb][cc][dc][fc][ed][gd][ee][ge][ff] (;B[gf];W[fe] (;B[ea];W[da] (;B[db];W[ca]) (;B[ca];W[fa])) (;B[db];W[ec] (;B[ea];W[ca]) (;B[fb];W[fa]) (;B[ba];W[ea]) (;B[aa];W[ba]) (;B[ca];W[ea]) (;B[fa];W[fb]) (;B[da];W[ea])) (;B[ca];W[ea] (;B[fb];W[fa]) (;B[fa];W[fb])) (;B[fa];W[fb] (;B[ea];W[da]) (;B[db];W[ec]))) (;B[fe];W[ca];B[db];W[da]) (;B[ea];W[da] (;B[db];W[ca]) (;B[ca];W[fa];B[db];W[ba])) (;B[fb];W[fa] (;B[fe];W[fd] (;B[gf];W[ca]) (;B[db];W[ec]) (;B[ca];W[da])) (;B[db];W[ec] (;B[fe];W[fd]) (;B[ba];W[da]) (;B[ca];W[fe])) (;B[ca];W[da];B[db];W[ba])) (;B[db];W[ec] (;B[gf];W[fe] (;B[ea];W[ca] (;B[fb];W[da]) (;B[ba];W[da]) (;B[aa];W[da]) (;B[da];W[fa])) (;B[fb];W[fa];B[ea];W[da]) (;B[ba];W[ea] (;B[fb];W[fa]) (;B[fa];W[fb])) (;B[aa];W[ba] (;B[ea];W[ca]) (;B[fb];W[fa])) (;B[ca];W[ea] (;B[fb];W[fa]) (;B[fa];W[fb])) (;B[fa];W[fb] (;B[ea];W[da]) (;B[ca];W[ea])) (;B[da];W[ea])) (;B[fe];W[ca] (;B[ba];W[da]) (;B[aa];W[da]) (;B[da];W[ea])) (;B[ea];W[ca] (;B[ba];W[da] (;B[db];W[fa]) (;B[cb];W[db])) (;B[aa];W[da]) (;B[da];W[fa])) (;B[fb];W[fa] (;B[fe];W[fd] (;B[gf];W[ca]) (;B[ba];W[da]) (;B[ca];W[ba])) (;B[ba];W[da] (;B[fe];W[ca]) (;B[aa];W[gf]) (;B[ca];W[aa])) (;B[ca];W[fe];B[ea];W[ba])) (;B[ba];W[da] (;B[fe];W[ca]) (;B[ea];W[ca] (;B[db];W[fa]) (;B[cb];W[db])) (;B[fb];W[ca]) (;B[aa];W[gf] (;B[fe];W[fd]) (;B[fd];W[fe]) (;B[ea];W[fa]) (;B[fb];W[fa]) (;B[ca];W[ea]) (;B[fa];W[fb])) (;B[ca];W[aa] (;B[fa];W[fb]) (;B[cb];W[ca])) (;B[fa];W[ca];B[cb];W[db])) (;B[aa];W[ba] (;B[ea];W[ca];B[da];W[fa]) (;B[ca];W[da]) (;B[da];W[fa] (;B[ea];W[ca]) (;B[ca];W[ea]))) (;B[ca];W[fa] (;B[gf];W[fe];B[ea];W[ba] (;B[fb];W[da]) (;B[aa];W[da];B[ea]C[RIGHT])) (;B[fe];W[ea] (;B[gf];W[da] (;B[ff];W[ba]) (;B[fd];W[ba]) (;B[ba];W[aa] (;B[ff];W[ca];B[cb];W[db]) (;B[fd];W[ba] (;B[ca];W[cb]) (;B[cb];W[ca])) (;B[ba];W[ca];B[cb];W[db]) (;B[ca];W[db] (;B[ba];W[cb]) (;B[cb];W[ba])) (;B[cb]C[RIGHT])) (;B[aa];W[ba])) (;B[ba]C[RIGHT]) (;B[aa]C[RIGHT]) (;B[da];W[ba] (;B[ca];W[fd] (;B[gf];W[da]) (;B[cb];W[gf])) (;B[cb];W[fd] (;B[gf];W[da]) (;B[ca];W[gf])))) (;B[ea];W[da] (;B[gf];W[fe] (;B[ea];W[ba]) (;B[ba];W[aa])) (;B[fe];W[ba]) (;B[fd];W[ba]) (;B[ea]C[RIGHT]) (;B[ba];W[aa]) (;B[aa];W[ba])) (;B[ba];W[gf] (;B[fe];W[fd];B[ea];W[da];B[ea]C[RIGHT]) (;B[fd];W[fe];B[ea];W[da];B[ea]C[RIGHT]) (;B[ea];W[da] (;B[fe];W[aa]) (;B[fd];W[aa]) (;B[ea]C[RIGHT]) (;B[aa];W[ea])) (;B[aa];W[ea] (;B[fe];W[fd]) (;B[fd];W[fe]))) (;B[aa];W[gf] (;B[fe];W[fd];B[ea];W[ba]) (;B[fd];W[fe];B[ea];W[ba]) (;B[ea];W[da] (;B[fe];W[fd]) (;B[fd];W[ba]) (;B[ea]C[RIGHT]) (;B[ba];W[ea])) (;B[ba];W[ea] (;B[fe];W[fd]) (;B[fd];W[fe]))) (;B[da];W[gf] (;B[fe];W[fd];B[ea];W[ba]) (;B[fd];W[fe];B[ea];W[ba]) (;B[ea];W[ba]))) (;B[fa];W[ca] (;B[ba];W[da];B[cb];W[db]) (;B[aa];W[da];B[cb];W[db]) (;B[da];W[ea])) (;B[da];W[ea])) (;B[ba];W[ea] (;B[fe];W[fd] (;B[gf];W[da]) (;B[fb];W[fa]) (;B[db];W[gf]) (;B[fa];W[fb])) (;B[fb];W[fa] (;B[fe];W[fd]) (;B[db];W[gf])) (;B[db];W[gf] (;B[ec];W[dc]) (;B[fe];W[fd]) (;B[fd];W[fe]) (;B[fb];W[fa]) (;B[fa];W[fb])) (;B[fa];W[fb] (;B[fe];W[fd]) (;B[db];W[gf]))) (;B[aa];W[ba] (;B[ea];W[da];B[db];W[ca]) (;B[db];W[ec] (;B[ea];W[ca]) (;B[ca];W[da]) (;B[da];W[fa])) (;B[da];W[fb] (;B[fe];W[fd]) (;B[ea];W[fe]) (;B[db];W[ec]))) (;B[ca];W[ea] (;B[fe];W[fd] (;B[gf];W[da]) (;B[fb];W[fa]) (;B[db];W[gf]) (;B[fa];W[fb])) (;B[fb];W[fa] (;B[fe];W[fd]) (;B[db];W[gf])) (;B[db];W[gf] (;B[ec];W[dc]) (;B[fe];W[fd]) (;B[fd];W[fe]) (;B[fb];W[fa]) (;B[fa];W[fb])) (;B[fa];W[fb] (;B[fe];W[fd]) (;B[db];W[gf]))) (;B[fa];W[ca] (;B[db];W[ec] (;B[ba];W[da]) (;B[aa];W[da]) (;B[da];W[ea])) (;B[ba];W[db]) (;B[aa];W[db]) (;B[da];W[db])) (;B[da];W[fb] (;B[fe];W[fd] (;B[gf];W[db]) (;B[ea];W[db]) (;B[db];W[ec])) (;B[ea];W[db]) (;B[db];W[ec] (;B[fe];W[fd]) (;B[ea];W[fa]) (;B[ba];W[ea]) (;B[aa];W[ba]) (;B[ca];W[gf])) (;B[ba];W[fd] (;B[gf];W[db]) (;B[ea];W[db]) (;B[db];W[ea]) (;B[aa];W[ea]) (;B[ca];W[ea])) (;B[aa];W[ba] (;B[fe];W[fd]) (;B[ea];W[fe]) (;B[db];W[ec])) (;B[ca];W[fd] (;B[gf];W[ea]) (;B[ea];W[db]) (;B[db];W[ea]) (;B[ba];W[ea]) (;B[aa];W[ba]))))