Problem	491
Created	2001-04-03
Source
Rating

Difficulty	6 dan
Average Solve Time	56 secs
User Attempts	862 / 4377
Solve Ratio Rating	1 kyu
	rating history

(;GM[1]FF[4]CA[UTF-8] SZ[19]RU[Japanese]KM[0]TM[1800,0,30,5]PW[]PB[]AB[ba][ca][ab][bc]AW[bb][cb][db][dc]AB[ed][fd][dd][cc][ce]AW[fc][gc][hc][hb][ha]AB[gb][ib][ia][ic][id][hd][gd]AW[fa]C[black to kill] (;B[ec]CR[ec] ;W[eb]CR[eb] (;B[fb]CR[fb] ;W[ga]CR[ga] (;B[fb]CR[fb] ;W[gb]CR[gb] ;B[da]CR[da]C[RIGHT]) (;B[da]CR[da] ;W[ea]CR[ea])) (;B[da]CR[da] ;W[ea]CR[ea])) (;B[fb]CR[fb] ;W[ec]CR[ec] (;B[ea]CR[ea] ;W[eb]CR[eb]) (;B[da]CR[da] ;W[ea]CR[ea]) (;B[eb]CR[eb] ;W[da]CR[da]C[seki])) (;B[eb]CR[eb] ;W[ec]CR[ec] (;B[fb]CR[fb] ;W[da]CR[da]C[seki]) (;B[da]CR[da] ;W[ea]CR[ea])) (;B[da]CR[da] ;W[ea]CR[ea]) (;B[ga]CR[ga] ;W[fb]CR[fb]) (;B[ea]CR[ea] ;W[eb]CR[eb]) (;B[aa]CR[aa] ;W[da]CR[da] (;B[fb]CR[fb] ;W[eb]CR[eb]) (;B[eb]CR[eb] ;W[ec]CR[ec]C[seki])))