Problem 13945 goproblems.com

Add / View flags +5


Author	monk316	Created	2010-09-06
Difficulty	10 kyu (history)	Source	N/A
AVG solve time	71 sec	Stars	4.06 (17 votes)
User attempts	1136 / 3200	Collections	Amateur Game, Corner based, Ko / Ko Threats
Genre	life and death ⓒ	Your attempts	N/A
Similar problems
Created	2010-09-06
Source	N/A
Stars	4.06 (17 votes)
Collections	Amateur Game, Corner based, Ko / Ko Threats
Your attempts	N/A

(;AB[sp]AB[rp]AB[qq]AB[pq]AB[pr]AB[op]AB[mp]AB[np]AB[lp]AB[lq]AB[kq]AB[kr]AB[jr]AB[ir]AW[rq]AW[rr]AW[qr]AW[ps]AW[or]AW[nr]AW[nq]AW[mq]AW[lr]AW[ms]C[B to move.]AB[qp]AP[goproblems] (;B[os];W[ns]C[] (;B[sr];W[sq] (;B[rs]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[ks];W[qs])) (;B[rs];W[sq] (;B[sr]C[Correct. Direct ko.RIGHT]) (;B[qs];W[ss]) (;B[ss]C[W can tenuki.]) (;B[ks];W[qs])) (;B[ks];W[ls] (;B[sr];W[sq] (;B[rs]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs])) (;B[rs];W[sq] (;B[sr]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[ss])) (;B[sq];W[sr]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs])) (;B[sq];W[sr]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[ls];W[ks] (;B[sr];W[sq] (;B[rs]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[js];W[qs])) (;B[rs];W[sq] (;B[sr]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[ss]) (;B[js];W[qs])) (;B[js];W[ls] (;B[sr];W[sq] (;B[rs]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs])) (;B[rs];W[sq] (;B[sr]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[ss])) (;B[sq];W[sr]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[oq];W[sq])) (;B[sq];W[sr]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[oq];W[sq]))) (;B[ls];W[ks] (;B[os];W[ns] (;B[sr];W[sq] (;B[rs]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[js];W[qs])) (;B[rs];W[sq] (;B[sr]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[ss]) (;B[js];W[qs])) (;B[js];W[ls] (;B[sr];W[sq] (;B[rs]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs])) (;B[rs];W[sq] (;B[sr]C[Correct. Direct ko.RIGHT]) (;B[ss]C[W can tenuki.]) (;B[qs];W[ss])) (;B[sq];W[sr]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[oq];W[sq])) (;B[sq];W[sr]) (;B[ss]C[W can tenuki.]) (;B[qs];W[rs]) (;B[oq];W[sq])) (;B[js];W[os]) (;B[ns]C[W can tenuki.]) (;B[oq];W[sq]) (;B[qs];W[os]) (;B[rs];W[qs]) (;B[ss]C[W can tenuki.]) (;B[sr];W[os]) (;B[sq];W[sr])) (;B[sq];W[sr]) (;B[sr];W[os]) (;B[ss]C[W can tenuki.]) (;B[rs];W[qs]) (;B[qs];W[rs]) (;B[oq];W[sq]) (;B[ns]C[W can tenuki.]) (;B[ks];W[os]))