Problem 17074 goproblems.com


Author	MurphysLaw	Created	2013-01-18
Difficulty	8 dan (history)	Source	KGS (MurphysLaw vs ohlord)
AVG solve time	108 sec	Stars	N/A
User attempts	33 / 241	Collections	Connect, Amateur Game, Side based, Double Ko
Genre	best move	Your attempts	N/A
Similar problems
Created	2013-01-18
Source	KGS (MurphysLaw vs ohlord)
Stars	N/A
Collections	Connect, Amateur Game, Side based, Double Ko
Your attempts	N/A

(;AB[jr]AB[kq]AB[lq]AB[oq]AB[pr]AB[pq]AB[qq]AB[np]AB[no]AB[nn]AB[om]AB[pl]AB[ql]AB[rl]AB[qm]AB[ln]AB[lm]AB[ll]AB[ko]AB[jo]AB[jn]AB[in]AB[iq]AB[hq]AB[gq]AW[qr]AW[rs]AW[sr]AW[rq]AW[sq]AW[rp]AW[qn]AW[qo]AB[qp]AW[rn]AW[rm]AW[sn]AW[pn]AW[pm]AW[on]AW[oo]AW[op]AW[pp]AW[lo]AW[lp]AW[kp]AW[jp]AW[jq]AW[ip]AW[hp]AW[ho]AW[mq]AW[fo]AW[fp]TR[mq]C[White just played the triangled move. How does black keep everything while staying connected?]AW[fq]AP[goproblems] (;B[mr];W[lr];B[kr];W[nr] (;B[ls];W[nq]C[Black didn't have to give up the p3 group]) (;B[nq] (;W[ms];B[mp];W[nm] (;B[os];W[ol]C[white breaks through]) (;B[ps];W[ol]C[white breaks through]) (;B[ol] (;W[ps];B[os] (;W[or] (;B[qs];W[il]LB[jl:R]C[White plays ko threat, please respond at R];B[jl];W[ps];B[mr]C[RIGHT]) (;B[mr]C[RIGHT])) (;W[mn] (;B[qs];W[mm];B[mo];W[ps];B[mr]C[RIGHT]) (;B[mm];W[mo];B[nl];W[or];B[qs];W[il]LB[jl:R]C[Please play at R to respond to ko threat];B[jl];W[ps];B[mr]C[RIGHT]) (;B[mr]C[RIGHT]))) (;W[mn] (;B[os];W[mm];B[mo];W[ps];B[mr]C[Captures n7 in double koRIGHT]) (;B[ps];W[mm];B[mo]C[RIGHT])))) (;W[mp]))) (;B[mp];W[mr] (;B[lr];W[ms] (;B[kr];W[nq] (;B[ns];W[or];B[ps];W[qs]) (;B[os] (;W[nr];B[or];W[ps]C[Ko]) (;W[ps];B[qs]C[Ko]) (;W[ns];B[qs]C[Ko]))) (;B[nq];W[kr];B[ks];W[ls];B[kr];W[ir]) (;B[ls];W[ks];B[kr];W[ir];B[js];W[is])) (;B[kr];W[nq]) (;B[ls] (;W[kr];B[lr];W[ms];B[ks]) (;W[ms] (;B[nq];W[kr]) (;B[lr];W[ks];B[kr];W[ir];B[js];W[is]) (;B[kr];W[nq];B[os];W[ps]C[Ko]))) (;B[ks];W[ls] (;B[kr];W[nq];B[os];W[ir];B[hr];W[qs]C[Black dies]) (;B[nq];W[kr]C[Snapback]))) (;B[nq];W[mr]AW[fq] (;B[lr] (;W[ms] (;B[kr];W[mp]C[Black's g3 group is split]) (;B[mp];W[kr];B[ks];W[ls];B[kr];W[ir])) (;W[ls];B[kr];W[mp])) (;B[kr];W[mp]C[Black is split!])) (;B[lr];W[mr];B[mp];W[ms] (;B[kr];W[nq] (;B[ns];W[or];B[ps];W[qs]) (;B[os] (;W[nr];B[or];W[ps]C[Ko]) (;W[ps];B[qs]C[Ko]) (;W[ns];B[qs]C[Ko]))) (;B[nq];W[kr];B[ks];W[ls];B[kr];W[ir]) (;B[ls];W[ks];B[kr];W[ir];B[js];W[is])) (;B[ls];W[mr] (;B[mp];W[ms] (;B[nq];W[kr]) (;B[lr];W[ks];B[kr];W[ir];B[js];W[is]) (;B[kr];W[nq];B[os];W[ps]C[Ko])) (;B[lr];W[ms];B[mp];W[ks];B[kr];W[ir];B[js];W[is]) (;B[kr];W[mp] (;B[ms];W[nq]C[Black is split!]) (;B[nq];W[ms]C[Black is split!]))) (;B[ks];W[mr];B[mp];W[ls] (;B[kr];W[nq];B[os];W[ir];B[hr];W[qs]C[Black dies]) (;B[nq];W[kr]C[Snapback])))