Problem	14721
Created	2011-04-15
Source
Rating

Difficulty	9 dan
Average Solve Time	35 secs
User Attempts	34 / 265
Solve Ratio Rating	2 dan
	rating history

black to win 4 points or more. chinese rules

(;SZ[6]AB[dc]AW[cd]AB[dd]AW[cc]AW[be]AB[cb]AW[bb]AW[bd]AB[ba]AW[ac]AB[db]AW[de]AB[ee]AW[cf]AB[ef]AW[aa]AP[goproblems] (;B[ca];W[df];B[ab];W[ed] (;B[ec];W[aa];B[bf];W[af];B[ab];W[fd] (;B[fc];W[aa] (;B[ad];W[bc];B[ab];W[fe];B[ff];W[aa]C[FORCE];B[ed];W[ab]C[black wins only 2 points.]) (;B[ae];W[ab])) (;B[bc];W[fe];B[fc];W[ff];B[ad];W[ae];B[ac]C[black wins only 2 points.])) (;B[bc];W[ec];B[eb];W[fe];B[fc];W[ff];B[ad];W[ae];B[ac];W[fd];B[fb]) (;B[fd]C[NOTTHIS])) (;B[df];W[ca] (;B[ce];W[da] (;B[ea];W[ba] (;B[bf];W[eb];B[ec];W[fa];B[fc];W[ae];B[fb];W[ea];B[cf];W[af]) (;B[eb];W[de])) (;B[bf];W[eb];B[ec];W[ae];B[fb];W[ea];B[fc];W[af];B[cf];W[ba];B[fa]C[black wins only 2 points.])) (;B[da];W[ce];B[ba];W[ed] (;B[ec];W[ca]) (;B[fd]C[NOTTHIS]))) (;B[ab] (;W[df]C[CHOICE] (;B[bc];W[ed] (;B[ad];W[ec];B[eb];W[fe];B[fc];W[ff];B[ae];W[bf];B[fb];W[fd]C[black wins only 2 points.]) (;B[ec];W[bb] (;B[bf];W[af];B[bc];W[fd] (;B[ad];W[fe];B[fc];W[ff]C[black wins only 2 points.]) (;B[fc];W[bb] (;B[ae];W[ad];B[bc];W[fe];B[ff];W[bb];B[ca];W[aa];B[ed];W[ab]C[black wins only 2 points.]) (;B[ca];W[aa] (;B[ad];W[bc];B[ab];W[fe];B[ff];W[aa]C[FORCE];B[ed];W[ab]C[black wins only 2 points.]) (;B[ae];W[ab])))) (;B[ca];W[aa];B[bf];W[af];B[ab];W[fd] (;B[fc];W[aa] (;B[ad];W[bc];B[ab];W[fe];B[ff];W[aa]C[FORCE];B[ed];W[ab]C[black wins only 2 points.]) (;B[ae];W[ab])) (;B[bc];W[fe];B[fc];W[ff];B[ad];W[ae];B[ac]C[black wins only 2 points.])) (;B[fd];W[aa];B[bf];W[af];B[ab];W[bc];B[ca];W[aa];B[ae];W[ad];B[ab];W[bf];B[aa]C[black wins 6 points.RIGHT])) (;B[fd]C[NOTTHIS])) (;B[ed];W[aa] (;B[bf];W[af];B[ab];W[bc];B[ca];W[aa];B[ae];W[ad];B[ab];W[bf];B[aa]C[black wins 6 points.RIGHT]) (;B[ca];W[ab]C[black wins only 2 points.]))) (;W[ed]C[] (;B[df];W[ce] (;B[ec];W[aa];B[ca];W[ab]C[black wins 4 points.RIGHT]) (;B[fd]C[NOTTHIS])) (;B[bc];W[ec] (;B[ad];W[df];B[eb];W[fe];B[fc];W[ff];B[ae];W[bf];B[fb];W[fd]C[black wins only 2 points.]) (;B[eb] (;W[df] (;B[fc];W[bb] (;B[bf];W[af];B[bc];W[fe];B[fd];W[bb];B[ae];W[ad];B[bc];W[ed];B[ec];W[bb];B[ca];W[aa]) (;B[ca];W[aa];B[bf];W[af];B[ab];W[fe];B[fd];W[aa];B[ad];W[bc];B[ab];W[ed];B[ec];W[aa]) (;B[fd];W[aa];B[bf];W[af];B[ab];W[bc];B[ca];W[aa];B[ae];W[ad];B[ab]C[b wins 6 points.RIGHT])) (;B[fd]C[NOTTHIS]) (;B[fe];W[bb];B[bf];W[af];B[bc];W[fd];B[fc];W[bb] (;B[ae];W[ad];B[bc]C[RIGHT]) (;B[ca];W[aa];B[ad];W[bc];B[ab]C[RIGHT]))) (;W[bb] (;B[ca];W[df];B[fc];W[aa];B[bf];W[af];B[ab];W[fe];B[fd];W[aa];B[ad];W[bc];B[ab];W[ed];B[ec];W[aa]) (;B[df];W[ce];B[fc];W[aa];B[ca];W[ab]C[b wins 4 points.RIGHT])))))))