Problem 4222 goproblems.com


Author	BartTM	Created	2004-04-08
Difficulty	6 kyu (history)	Source	2k v. 3d game in Delft
AVG solve time	55 sec	Stars	4.33 (12 votes)
User attempts	1365 / 4757	Collections	N/A
Genre	life and death ⓒ	Your attempts	N/A
Similar problems
Created	2004-04-08
Source	2k v. 3d game in Delft
Stars	4.33 (12 votes)
Collections	N/A
Your attempts	N/A

(;AB[dr]AW[dq]AW[cr]AW[cq]AB[eq]AB[es]AB[fq]AB[gq]AB[hq]AB[jq]AB[jr]AW[ep]AW[fp]AW[gp]AW[hp]AW[ip]AW[jp]AW[kq]AW[kr]AW[js]AB[fr]AP[goproblems] (;W[gs];B[is] (;W[cs];B[iq] (;W[hr];B[ks] (;W[ds];B[er]C[seki]) (;W[gr];B[hs];W[ds];B[er]C[seki]) (;W[hs];B[gr]C[seki]) (;W[fs];B[hs]) (;W[lr];B[hs] (;W[ds];B[gr]) (;W[gr];B[ds]) (;W[ls];B[ds])) (;W[mr];B[hs] (;W[ds];B[gr]) (;W[gr];B[ds]) (;W[ls];B[ds]))) (;W[gr];B[hr]) (;W[hs];B[ks] (;W[hr];B[gr]C[seki]) (;W[ds];B[hr])) (;W[ds];B[hr] (;W[er];B[fs]) (;W[hs];B[ks]) (;W[fs];B[er]))) (;W[ir];B[ks] (;W[iq];B[hr] (;W[hs]C[and Black resigned.RIGHT]) (;W[cs];B[hs];W[ds];B[lr]C[Black tries to escape and may well succeed. This is not as good as the solution, where Black gets captured outright.]) (;W[js];B[hs])) (;W[hs];B[iq]C[Ko]) (;W[cs];B[iq]C[Alive]) (;W[hr];B[iq] (;W[hs];B[fs];W[js];B[gr]) (;W[gr];B[fs]) (;W[fs];B[gr]) (;W[cs];B[gr])) (;W[gr];B[iq]) (;W[fs];B[iq]) (;W[ls];B[iq] (;W[js];B[hr]) (;W[hs];B[hr];W[js];B[ir]) (;W[hr];B[gr]) (;W[cs];B[hr]) (;W[fs];B[hr]) (;W[gr];B[hr]))) (;W[iq];B[hr] (;W[cs];B[ds];W[fs]C[RIGHT]) (;W[ir];B[hs]) (;W[fs];B[cs] (;W[ir];B[hs]) (;W[bs];B[hs]C[Ko])) (;W[ds];B[cs]C[Alive.]) (;W[hs];B[ir]C[Alive.])) (;W[hr];B[iq] (;W[ir];B[gr];W[hs];B[fs]) (;W[cs];B[ks] (;W[ds];B[er]C[seki]) (;W[gr];B[hs];W[ds];B[er]C[seki]) (;W[hs];B[gr]C[seki]) (;W[fs];B[hs]) (;W[lr];B[hs] (;W[ds];B[gr]) (;W[gr];B[ds]) (;W[ls];B[ds])) (;W[mr];B[hs] (;W[ds];B[gr]) (;W[gr];B[ds]) (;W[ls];B[ds]))) (;W[hs];B[ir]) (;W[gr];B[ir]) (;W[fs];B[gr]) (;W[ks];B[gr] (;W[hs];B[fs]) (;W[cs];B[ds];W[hs];B[fs]))) (;W[hs];B[ir] (;W[iq];B[hr]) (;W[hr];B[iq]) (;W[ks];B[fs]) (;W[fs];B[hr];W[cs];B[gr] (;W[ds];B[gs];W[er]C[Ko]) (;W[gs];B[ds])) (;W[cs];B[ds];W[fs]C[RIGHT]) (;W[ds];B[cs] (;W[bs];B[fs] (;W[ds]C[Ko]) (;W[iq];B[ks] (;W[ds];B[lr]C[Ko, or Black will escape.]) (;W[ls];B[ds])) (;W[ks];B[ds])) (;W[fs];B[hr];W[bs];B[gr];W[ds];B[gs];W[er]C[Ko]))) (;W[gr];B[hr]) (;W[fs];B[iq] (;W[cs];B[hs] (;W[ds];B[er]) (;W[hr];B[gr]) (;W[ir];B[gr])) (;W[hs];B[ks] (;W[hr];B[gr]) (;W[cs];B[hr]) (;W[ds];B[cs] (;W[hr];B[gr]) (;W[bs];B[hr])) (;W[ls];B[hr])) (;W[hr];B[gr])) (;W[ks];B[hr] (;W[cs];B[hs] (;W[ds];B[iq]) (;W[iq];B[ds])) (;W[iq];B[ds]) (;W[hs];B[ir]) (;W[ir];B[hs]))) (;W[cs];B[ir] (;W[ds];B[gs]C[Ko]) (;W[gs];B[hs] (;W[ds];B[gr]C[Black lives.]) (;W[gr];B[ds]) (;W[iq];B[ds]) (;W[ks];B[ds])) (;W[iq];B[ds] (;W[hr];B[gs]) (;W[gs];B[hs]) (;W[is];B[hr]) (;W[hs];B[hr]) (;W[gr];B[hr])) (;W[is];B[hs] (;W[ds];B[ks]C[The marked points are miai for life.]MA[js]MA[gr]) (;W[ks];B[ds]) (;W[iq];B[ks])) (;W[hs];B[gs] (;W[hr];B[gr]) (;W[is];B[hr]) (;W[iq];B[hr]) (;W[ds];B[hr])) (;W[ks];B[ds] (;W[gs];B[hs]) (;W[is];B[hs]) (;W[hs];B[is]) (;W[iq];B[hr]) (;W[hr];B[hs]) (;W[fs];B[gs])) (;W[hr];B[hs])) (;W[iq];B[hr] (;W[gs];B[hs]) (;W[ir];B[ds]) (;W[cs];B[ds]) (;W[is];B[ds]) (;W[hs];B[gs])) (;W[ir];B[hr]) (;W[hr];B[gs] (;W[gr];B[ir]) (;W[iq];B[gr]) (;W[ir];B[iq] (;W[gr];B[is]) (;W[is];B[gr]) (;W[cs];B[ds]) (;W[hs]C[Black lives as it stands, and could capture 3 stones by playing G2.])) (;W[cs];B[ds]) (;W[hs];B[iq] (;W[gr];B[is]) (;W[is];B[gr]) (;W[cs];B[is] (;W[ir];B[ds]) (;W[ds];B[ks];W[er]C[Ko])) (;W[ir]C[Black is alive as it stands and can capture 3 stones by playing G2.])) (;W[is];B[gr]) (;W[ds];B[cs])) (;W[hs];B[gs]) (;W[is];B[gs]) (;W[gr];B[hr]) (;W[ks];B[gs]) (;W[ds];B[gs] (;W[er];B[hr] (;W[fs];B[is]) (;W[is];B[dr]C[Ko])) (;W[hr];B[cs]) (;W[hs];B[cs]) (;W[iq];B[cs]) (;W[ir];B[cs]) (;W[is];B[cs]) (;W[cs];B[hr] (;W[is];B[er]) (;W[er];B[is]) (;W[iq];B[ir] (;W[er];B[is]) (;W[is];B[er])) (;W[ir];B[iq]))) (;W[fs];B[gs]C[Alive and well.]) (;W[kp];B[ir]C[Very much alive now.]))