Problem 11694 goproblems.com


Author	MeleeNewb	Created	2008-09-06
Difficulty	7 dan (history)	Source	self
AVG solve time	52 sec	Stars	2.83 (6 votes)
User attempts	57 / 284	Collections	Side based, Ko / Ko Threats, Self made
Genre	life and death	Your attempts	N/A
Similar problems
Created	2008-09-06
Source	self
Stars	2.83 (6 votes)
Collections	Side based, Ko / Ko Threats, Self made
Your attempts	N/A

(;AB[sf]AB[rf]AB[qf]AB[pf]AB[pg]AB[ph]AB[pi]AB[pj]AB[pk]AB[pl]AW[qk]AW[qj]AW[qi]AW[qh]AW[qg]AW[rg]AB[pm]AB[qm]AB[rm]AB[sm]AW[ql]AW[rl]C[Do your best.FORCE]AP[goproblems] (;B[si];W[sh] (;B[sg];W[ri] (;B[rh];W[pd]LB[qd:K]C[White makes a ko threat. R16 if you wish to respond.] (;B[qd];W[sh];B[sj];W[sk];B[rh]C[Good job.RIGHT]) (;B[sj];W[qd]C[Black could have responded to the threat and still forced white to find another.]) (;B[sh];W[qd]C[Black could have responded to the threat and still forced white to find another.]) (;B[sl];W[qd]C[Black could have responded to the threat and still forced white to find another.])) (;B[sj];W[sk]C[You just wasted a ko threat.])) (;B[ri];W[rj]) (;B[sl];W[sk] (;B[sg];W[ri]C[Not the best ko.]) (;B[sj];W[rj]C[Not the best ko.]) (;B[ri];W[rj])) (;B[sk];W[ri];B[sj];W[sl];B[sg];W[rj]C[Not the best ko.]) (;B[sj];W[sk] (;B[sg];W[ri]C[Not the best ko.]) (;B[sl];W[rj]C[Not the best ko.]))) (;B[sg];W[sh] (;B[si];W[ri] (;B[rh];W[pd]LB[qd:K]C[White makes a ko threat. R16 if you wish to respond.] (;B[qd];W[sh];B[sj];W[sk];B[rh]C[Good job.RIGHT]) (;B[sj];W[qd]C[Black could have responded to the threat and still forced white to find another.]) (;B[sh];W[qd]C[Black could have responded to the threat and still forced white to find another.]) (;B[sl];W[qd]C[Black could have responded to the threat and still forced white to find another.])) (;B[sj];W[sk]C[You just wasted a ko threat.])) (;B[sl];W[sk] (;B[sj];W[rj]C[Not the best ko.]) (;B[si];W[ri]C[Not the best ko.]) (;B[rj];W[ri]) (;B[ri];W[rj])) (;B[sj];W[sk] (;B[si];W[ri]C[Not the best ko.]) (;B[sl];W[rj]C[Not the best ko.]) (;B[ri];W[rj]) (;B[rj];W[ri])) (;B[ri];W[rj]) (;B[rj];W[ri]) (;B[sk]C[See next problem.])) (;B[sh];W[sg] (;B[sl];W[sk] (;B[sj];W[rj]C[Not the best ko.]) (;B[si];W[sj];B[rj];W[rk]) (;B[rj];W[ri]) (;B[ri];W[rh] (;B[sj];W[si]C[Not the best ko.]) (;B[si];W[rj]) (;B[rj];W[si]))) (;B[sk];W[sl]) (;B[sj];W[sl] (;B[ri];W[rj]) (;B[si]) (;B[rj];W[ri])) (;B[si];W[sk] (;B[sl];W[sj];B[rj];W[rk]) (;B[rj];W[ri]) (;B[sj];W[sl])) (;B[ri];W[rj];B[sk];W[sj] (;B[sl];W[si]) (;B[si];W[sl]) (;B[rh];W[sl])) (;B[rj];W[ri] (;B[si];W[sk]) (;B[sk];W[sl];B[si]))) (;B[rh];W[ri]) (;B[ri];W[rj]))