Problem 23522 goproblems.com


Author	DK2	Created	2021-11-01
Difficulty	23 kyu (history)	Source	A situation similar to this occurred in a GNU Go game
AVG solve time	70 sec	Stars	5 (1 votes)
User attempts	168 / 306	Collections	Prevent the Connection
Genre	life and death	Your attempts	N/A
Similar problems
Created	2021-11-01
Source	A situation similar to this occurred in a GNU Go game
Stars	5 (1 votes)
Collections	Prevent the Connection
Your attempts	N/A

(;AB[ce][ae][af][bd][bg][cg][cf][dd][ed][eb][gf][hc][he][ag][eg]AW[ah][bh][ch][cd][cc][bb][ac][ad][aa][ca][gh][gj][de][eh][dh][ef]C[The numbered exchange was just played. Should white now tenuki? If yes, then play the location marked 'Tenuki' (D8). Otherwise, kill black's left-side group. FORCE]AP[Sabaki:0.52.0]LB[dl:Tenuki][ef:1][eg:2]PL[W]CA[UTF-8](;W[dl];B[fg]AW[eg][ag][bg][cg][af][cf][ae][ce][bd][dd][ed][gf][he][hc][eb]AB[ef][de][eh][ah][bh][ch][dh][ad][ac][cd][cc][bb][aa][ca][gh][gj]MA[fg]C[Actually, white could have killed the left side group. Imagine the colors are reversed and the marked stone is played. You can explore variations in which the left-side group tries to escape, but fails. ](;W[dg];B[ff](;W[ee];B[df])(;W[df];B[ee]))(;W[ff];B[dg](;W[df];B[ee])(;W[ee];B[df]))(;W[df];B[ee](;W[ff];B[dg])(;W[dg];B[ff])(;W[fe];B[ff]))(;W[ee];B[df](;W[ff];B[dg])(;W[dg];B[ff])))(;W[fg](;B[dg](;W[ff]C[RIGHT])(;W[ee];B[ff](;W[be];B[fe]C[Black saved the left side group.])(;W[fe];B[fd](;W[ge];B[gd]C[Black saved the left side group.])(;W[be];B[ge]C[Black saved the left side group.])))(;W[df];B[ff]C[Black saved the left side group.])(;W[be];B[ff]C[Black saved the left side group.]))(;B[df](;W[ee];B[dg](;W[ff]C[RIGHT])(;W[be]C[RIGHT]))(;W[dg];B[ee]))(;B[ee](;W[df](;B[ff];W[dg]C[RIGHT])(;B[dg];W[ff]C[RIGHT]))(;W[dg];B[df]))(;B[ff](;W[dg](;B[df];W[ee]C[RIGHT])(;B[ee];W[df]C[RIGHT]))(;W[ee];B[dg](;W[fe];B[fd];W[ge];B[gd])(;W[be];B[fe]))))(;W[dg];B[df];W[ee](;B[fg];W[be]C[RIGHT])(;B[fe](;W[fg]C[RIGHT])(;W[be];B[ff]C[Black saved the left side group.])))(;W[df];B[dg](;W[ff];B[fg]C[Black saved the left side group.])(;W[fg];B[ff]C[Black saved the left side group.]))(;W[ff];B[df](;W[ee];B[fg]C[Black saved the left side group.])(;W[dg];B[ee]C[Black saved the left side group.])(;W[fg];B[ee]C[Black saved the left side group.]))(;W[ee];B[dg](;W[fg];B[ff](;W[fe];B[fd](;W[ge];B[gd]C[Black saved the left side group.])(;W[be];B[ge]C[Black saved the left side group.]))(;W[be];B[fe]C[Black saved the left side group.]))(;W[fe];B[fd](;W[fg];B[ff](;W[be];B[ge];W[bc];B[df]C[Black saved the left side group.])(;W[ge];B[gd]C[Black saved the left side group.]))(;W[ge];B[gd](;W[ff];B[fg]C[Black saved the left side group.])(;W[fg];B[ff]C[Black saved the left side group.]))))(;W[be];B[df](;W[ee];B[fe]C[Black saved the left side group.])(;W[dg];B[ee]C[Black saved the left side group.])(;W[ff];B[ee]C[Black saved the left side group.])(;W[fg];B[ee]C[Black saved the left side group.])(;W[bc];B[ee]C[Black saved the left side group.])))