Problem	23593
Created	2022-07-11
Source	from a game played on KGS.
Rating

Difficulty	1 dan
Average Solve Time	102 secs
User Attempts	11 / 48
Solve Ratio Rating	2 kyu
	rating history

black to kill without ko. sorry if i didn't get all the variations.

(; AW[ca][cb][dc][bd][cd][dd][ed][ce][ee][fe][ff] AB[ea][db][fb][ec][gc][fd][gd][be][de][ge][bf][cf][df][ef][hf][eg][fg][gg] SZ[13] C[black to kill without ko.] (;B[bc] ;W[ab] (;B[bb] ;W[ba] (;B[ad] ;W[cc] C[white lives.]) (;B[ac] ;W[cc] (;B[aa] ;W[ad] C[white lives.]) (;B[ad] ;W[ae] C[white lives.]) ) ) (;B[ac] ;W[ad] ;B[bb] (;W[ba] C[CHOICE] ;B[aa] ;W[cc] C[white lives.]) (;W[cc] C[CHOICE] (;B[aa] ;W[ba] C[white lives.]) (;B[ba] ;W[aa] C[white lives.]) ) ) (;B[ad] ;W[ac] ;B[bb] ;W[ba] ;B[aa] ;W[ac] ;B[ab] ;W[cc] (;B[ac] ;W[ae] (;B[ab] ;W[ac] ;B[bb] C[RIGHT white dies.]) (;B[ac] ;W[ab] (;B[ad] ;W[bc] C[white lives.]) (;B[af] ;W[ad] C[white lives.]) ) ) (;B[ae] ;W[ac] ;B[ab] ;W[bb] C[ko.]) ) ) (;B[ab] ;W[bc] (;B[ac] ;W[ad] (;B[ba] ;W[bb] C[white lives.]) (;B[bb] ;W[aa]] C[white lives.]) ) (;B[ad] ;W[ac] ;B[ba] (;W[da] C[CHOICE] C[white lives.]) (;W[ae] C[CHOICE] C[white lives.]) ) (;B[bb] ;W[ac] C[white lives.]) ) (;B[ac] ;W[bc] (;B[ad] ;W[ab] C[white lives.]) (;B[bb] (;W[ba] C[CHOICE] C[white lives.]) (;W[ab] C[CHOICE] C[white lives.]) ) (;B[ab] ;W[ad] ;B[ba] ;W[da] C[white lives.]) ) (;B[bb] ;W[bc] (;B[ac] ;W[ad] C[white lives.]) (;B[ba] ;W[ab] C[white lives.]) (;B[aa] ;W[ac] C[white lives.]) ) (;B[ad] ;W[bc] (;B[ac] ;W[ab] C[white lives.]) (;B[ab]; W[ac] (;B[bb] ;W[ae] C[white lives.]) (;B[ba] ;W[ae] C[white lives.]) ) ) )