invalid problem set
Problem 1118
Created 2001-10-27
Source GW60 p64 (and GZP bottom 511)
Rating
Difficulty 2.3 kyu
Average Solve Time 50 secs
User Attempts
676 / 3667
Solve Ratio Rating 1 kyu
rating history
In an interview in 1990, Michael Redmond listed this problem as the tesuji that had made the biggest impression on him. He encountered the position in a game as an amateur 5 dan. His quote, "I was really happy that book study had paid off."
note: this problem is also in the Guan Zi Pu -- adum
(;SZ[19]AW[om]AW[pm]AW[qm]AW[on]AW[rn]AW[po]AW[qo]AB[qj]AB[qk]AB[ol]AB[pl]AB[ql]AB[nm]AB[nn]AB[pn]AB[no]AB[oo]AB[pp]AB[qp]AB[qq]AB[qr]C[Kill the white stones unconditionally]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.00]TM[]PW[White]PB[Black]
(;B[sn]
(;W[rl]
(;B[ro];W[qn]
(;B[sm]C[ CHOICERIGHT])
(;B[rk];W[sm]
(;B[so];W[rp])
(;B[rp];W[so]))
(;B[so];W[sm]
(;B[rp];W[rk];B[rj];W[sk])
(;B[rk];W[rp])))
(;B[rk];W[sm]
(;B[ro];W[qn]
(;B[rp];W[so])
(;B[so];W[rp]))
(;B[so];W[ro];B[rp];W[sp])))
(;W[sm]
(;B[rl];W[rp]
(;B[rm];W[qn];B[so]C[ CHOICERIGHT])
(;B[so];W[rm]))
(;B[so];W[rl]
(;B[ro];W[qn]
(;B[rp];W[rk];B[rj];W[sk])
(;B[rk];W[rp]))
(;B[rk];W[ro];B[rp];W[sp]))
(;B[ro];W[qn]
(;B[rp];W[rl];B[rk];W[so])
(;B[rl];W[rp]
(;B[rm];W[so])
(;B[so];W[sp]))
(;B[so];W[rp]))))
(;B[ro];W[qn]
(;B[sp];W[rl];B[rk];W[sm];B[sk];W[sl];B[sn];W[so]C[Black can do better than a ko.])
(;B[rp];W[rl]
(;B[rk];W[sm])
(;B[sm];W[sn];B[rk];W[sl])
(;B[sn];W[sm];B[rk];W[so])
(;B[sl];W[sm];B[rk];W[sk])))
(;B[rp];W[rl]
(;B[ro];W[qn]
(;B[sm];W[sn]
(;B[rk];W[sl])
(;B[sl];W[rk]))
(;B[rk];W[sm]))
(;B[rk];W[sm]))
(;B[rl];W[rp]
(;B[rm];W[qn]
(;B[rq];W[so])
(;B[so];W[sn]
(;B[rq];W[sp])
(;B[sp];W[rq])))
(;B[rq];W[so])))
Toggle next/previous buttons