goproblems.com Problem

Problem	801
Created	2001-06-29
Source	Game with Noriyuki Nakayama
Rating

Difficulty	6.4 kyu
Average Solve Time	43 secs
User Attempts	3581 / 9918
Solve Ratio Rating	6 kyu
	rating history

From a 3-on-1 game at a Go Congress. I missed the answer in the game... of course.

(;C[Black to play and live.]SZ[13]AB[ec]AB[ic]AB[hd]AB[ge]AB[fe]AB[fd]AB[fc]AB[gc]AB[hc]AW[jc]AW[jb]AW[id]AW[je]AW[dc]AW[db]AW[he]AW[hf]AW[gf]AW[ff]AW[ee]AW[ed]AW[tt]PL[B]GM[1]FF[4]VW[]AP[Many Faces of Go:10.0]HA[0]ST[0]KM[5.5] (;B[ga] (;W[ha] (;B[ia];W[fa] (;B[hb];W[fb] (;B[gb]C[RIGHT]) (;B[eb]C[RIGHT]) (;B[ib]C[RIGHT])) (;B[ea];W[gb] (;B[fb];W[ib];B[hb]C[RIGHT]) (;B[hb] (;W[fb];B[eb]C[RIGHT]) (;W[ib];B[fb]C[RIGHT])) (;B[eb];W[ib];B[hb]C[RIGHT]) (;B[ib];W[eb];B[fb]C[RIGHT];W[ga];B[hb];W[ga])) (;B[fb]C[RIGHT])) (;B[hb];W[fb];B[eb];W[ea] (;B[ia];W[fa] (;B[gb];W[da];B[ib]C[RIGHT]) (;B[ib]C[RIGHT])) (;B[fa];W[gb];B[fa];W[ga];B[ia];W[da];B[fa];W[ga];B[fb]C[RIGHT]) (;B[gb]C[RIGHT])) (;B[fa];W[eb];B[hb];W[fb]C[WRONG]) (;B[ib];W[ea];B[ia];W[gb];B[hb];W[fb];B[eb]C[RIGHT]) (;B[eb];W[gb] (;B[fb];W[fa];B[ia];W[ib];B[hb];W[ja];B[ea]C[RIGHT]) (;B[hb];W[fa] (;B[fb];W[ga];B[ia];W[ib];B[ea];W[ga];B[ha]C[RIGHT]) (;B[ea];W[ia]C[WRONG]) (;B[ia] (;W[ga];B[ea]C[RIGHT]) (;W[ib];B[fb]C[RIGHT];W[ja];B[ea]C[RIGHT]))))) (;B[ha];W[ib]C[WRONG]) (;B[ga];W[eb];B[hb];W[fb]C[WRONG])) (;B[fa];W[eb]C[WRONG];B[fb];W[ha];B[hb];W[ga];B[ia];W[ib]) (;B[eb];W[ga] (;B[gb];W[fa];B[ha];W[ib]C[WRONG]) (;B[ha]C[RIGHT]) (;B[ib];W[ia];B[ha];W[hb] (;B[gb];W[fa]C[WRONG]) (;B[fa];W[gb];B[fb]C[RIGHT])) (;B[fa]C[RIGHT];W[gb];B[hb];W[ha];B[ia];W[ib];B[fb])) (;B[ib] (;W[ga] (;B[fa]C[RIGHT];W[ha];B[gb];W[eb]C[WRONG]) (;B[ha]C[RIGHT])) (;W[eb];B[ga]C[RIGHT])) (;W[ga];B[ha];W[ia];B[fa];W[hb];B[gb];W[eb];B[ib];W[ha];B[ja];W[ha];B[ia]C[RIGHT]) (;W[tt]C[Black to play and live.] (;B[eb];W[ga];B[ib];W[gb] (;B[ha];W[ea];B[fa];W[fb];B[hb]C[RIGHT]) (;B[fa];W[ia];B[ha];W[hb];B[fb]C[RIGHT])) (;B[ib];W[ga];B[eb]C[RIGHT];W[gb] (;B[ha];W[ea];B[fa];W[fb];B[hb]C[RIGHT]) (;B[fa];W[ia];B[ha];W[hb];B[fb]C[RIGHT]))) (;B[ha];W[ib]C[WRONG];B[hb];W[fa]))