Problem	9563
Created	2006-12-12
Source	British Championship 2006
Rating

Difficulty	2 kyu
Average Solve Time	66 secs
User Attempts	808 / 2554
Solve Ratio Rating	4 kyu
	rating history

This comes from game 5 the British Championship 2006 (Matthew Macfadyen vs. Bei Ge). The tesuji was demonstrated by Guo Juan on her one euro go lectures website. It seems neither player (6D and 5D respectively) saw it, can you?

(;SZ[19]AW[df]AW[hf]AW[dg]AW[bh]AW[ch]AW[jh]AW[bi]AW[ci]AW[di]AW[ei]AW[gi]AW[hi]AW[ii]AW[cj]AW[fj]AW[gj]AW[ck]AW[hk]AW[ik]AW[cl]AW[gl]AW[il]AW[am]AW[dm]AW[em]AW[fm]AW[gm]AW[im]AW[jm]AW[en]AW[bo]AW[co]AW[dp]AW[hp]AW[dq]AW[fq]AW[gq]AB[ff]AB[gf]AB[if]AB[bg]AB[cg]AB[ig]AB[jg]AB[ah]AB[dh]AB[eh]AB[fh]AB[gh]AB[hh]AB[ih]AB[ai]AB[fi]AB[ji]AB[bj]AB[hj]AB[ij]AB[jj]AB[ak]AB[bk]AB[jk]AB[bl]AB[dl]AB[jl]AB[cm]AB[hm]AB[an]AB[bn]AB[cn]AB[dn]AB[fn]AB[do]AB[eo]AB[go]AB[ho]AB[fp]GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[Japanese]KM[0.00]PW[White]PB[Black];B[ej] (;W[dk]C[CHOICE] (;B[el] (;W[ek];B[fk]C[RIGHT] (;W[fl]C[Well doneCHOICE];B[gk]C[:)RIGHT]) (;W[dj];B[ej]C[:)];W[gk]C[RIGHT])) (;W[fk];B[ek];W[fl];B[dj]C[RIGHT])) (;B[fk];W[gk] (;B[dj];W[ek];B[ej];W[el]) (;B[ek];W[el]) (;B[el];W[fl]) (;B[fl] (;W[ek]) (;W[el]))) (;B[ek];W[el] (;B[dj];W[fk]) (;B[fk];W[gk])) (;B[dj];W[ek]) (;B[fl];W[el];B[ek])) (;W[ek];B[dk];W[dj];B[ej]C[RIGHT]) (;W[el];B[dk];W[ek];B[dj]C[RIGHT]) (;W[dj];B[dk]C[RIGHT]))