Tsumego From Games 60

    Keywords: Life & Death, Problem

From a game between two 2 kyus on DGS in July 2005.

[Diagram]

White to try something in the lower left corner.

tderz: This very interesting problem derives from a game of a befriend 2 kyu on DGS.

As in real life - this problem has several stages.

  • probably white does not need make another move right now, because white a and b are miai for an eye, the other one being in the corner.
  • However , if you imagine an exchange of a for b, then the point c is very interesting, almost problem-like, because it can connect to either d or e (there are several problems like that in the literatur), if black had not a weakness at f anyway and there would be a second eye around e.
  • Hence, White wants to make a move in that corner for a more important rason, white has his eyes set on the black h16 group (because the white center group has a dead shape).
  • Can white find a sequence wich - prima facie - kills hat group?
  • If Black obviously resists - what could happen next?
  • What different results could these "next" be?

(after the solution for a killing sequence one will discover the further implications)

/Attempts
/Solution?

[Diagram]

White to try something in the lower left corner.

tderz: a hint ....



( ;FF[4]GM[1] PC[Dragon Go Server: http://www.dragongoserver.net] BR2 kyu? WR2 kyu? OT60 days + 1 day/6 periods Japanese byoyomi? SZ[19] KM0.5 RUJapanese ;Bcq? ;Wpd? ;Bdc? ;Wpp? ;Bce? ;Wpj? ;Bjc? ;Wdp? ;Bcp? ;Wdo? ;Ber? ;Wgp? ;Bnq? ;Wco? ;Bck? ;Wfr? ;Beq ;Wlq? ;Bfq? ;Wgq? ;Bfo? ;Wfp? ;Bep? ;Weo? ;Bfn? ;Wgr? ;Bdm? ;Wdq? ;Bdr ;Wbr? ;Bcr ;Wbo? ;Bbp? ;Wap? ;Baq? ;Wao? ;Bbs? ;War? ;Bbq? ;Wes? ;Bbn? ;Wds? ;Bcn? ;Wcs? ;Bno? ;Wpn? ;Bnj? ;Wok? ;Bqf? ;Wpf? ;Bpg? ;Wof? ;Bqe? ;Wqd? ;Bog? ;Wnf? ;Bnc? ;Woc? ;Bnd? ;Wod? ;Bhn? ;Wee? ;Bqh? ;Wec? ;Brj? ;Wqk? ;Bpr? ;Wqq? ;Bqr? ;Wrr? ;Blo? ;Wkp? ;Bko ;Wdb? ;Bef? ;Wde ;Bdf? ;Wcc? ;Bcd? ;Wdd? ;Bcf? ;Wff? ;Bfg? ;Wgg? ;Bgf? ;Wfe? ;Bhf? ;Wie? ;Bgd? ;Wge? ;Bhe? ;Wic? ;Bid? ;Wjd? ;Bhd? ;Wkc? ;Bjb? ;Wkb? ;Bje? ;Wkd? ;Bib? ;Wke? ;Bnk? ;Wlh? ;Bip? ;Wiq? ;Bjp? ;Wjq? ;Bjh? ;Wig? ;Bjg ;Wfh? ;Beg? ;Wif? ;Bjf ;Whg? ;Bgh? ;Whh? ;Bhi? ;Wgi? ;Bih? ;Wgh? ;Bhj? ;Wfj? ;Bfb? ;Whc? ;Bgc? ;Wci? ;Bdi? ;Wdj ;Bcj? ;Wdh? ;Bbi? ;Wch? ;Bei? ;Weh? ;Bbh? ;Wdk? ;Bgk? ;Wdl? ;Bcl? ;Wfk? ;Bel? ;Wgl? ;Bhl? ;Wgm? ;Bhm? ;Wik? ;Bhk? ;Wii? ;Bji? ;Wij? ;Bjl? ;Wrk? ;Blf? ;Wkf? ;Bli? ;Wmi? ;Blj? ;Wlg? ;Bnh? ;Wni? ;Boi? ;Wmh? ;Boj? ;Wmj? ;Blk? ;Wmk ;Bml? ;Wll? ;Bol? ;Wpk? ;Bjj? )

          . . . . . . . . . . . . . . . . . . .
	   . . . 74. 25. . 1 9798. . . . . . . .
	   . . 783 64. 2726927 96. . 5758. . . .
	   . . 7980. . 8995939400. . 59602 54. .
	   . . 5 766286909188992 . . . . . 53. .
	   . . 81777582858714155655. 56525049. .
	   . . . . 138384161011. 60. . 5551. . .
	   . 37343236121718219 . 4 6461. . 63. .
	   . 33282935. 20195051. 57586263. . . .
	   . . 3130. 24. 235273. 596647656 . 65.
	   . . 1538. 42394948. . 67683 48726654.
	   . . 414043. 4445. 53. 7069. 71. . . .
	   . . . 27. . 4647. . . . . . . . . . .
	   . 4143. . 25. 61. . . . . . . 46. . .
	   363214102421. . . . 7371. 45. . . . .
	   34339 8 232212. 5 7 72. . . . 4 . . .
	   35391 28171920. 6 8 . 18. 13. . 68. .
	   38303129111626. . . . . . . . 676970.
	   . 37444240. . . . . . . . . . . . . .
	   a b c d e f g h j k l m n o p q r s t
	19 . . . . . . . . . . . . . . . . . . .  19
	18 . . . 74. 25. . 1 9798. . . . . . . .  18
	17 . . 783 64. 2726927 96. . 5758. . . .  17
	16 . . 7980. . 8995939400. . 59602 54. .  16
	15 . . 5 766286909188992 . . . . . 53. .  15
	14 . . 81777582858714155655. 56525049. .  14
	13 . . . . 138384161011. 60. . 5551. . .  13
	12 . 37343236121718219 . 4 6461. . 63. .  12
	11 . 33282935. 20195051. 57586263. . . .  11
	10 . . 3130. 24. 235273. 596647656 . 65.  10
	 9 . . 1538. 42394948. . 67683 48726654.   9
	 8 . . 414043. 4445. 53. 7069. 71. . . .   8
	 7 . . . 27. . 4647. . . . . . . . . . .   7
	 6 . 4143. . 25. 61. . . . . . . 46. . .   6
	 5 363214102421. . . . 7371. 45. . . . .   5
	 4 34339 8 232212. 5 7 72. . . . 4 . . .   4
	 3 35391 28171920. 6 8 . 18. 13. . 68. .   3
	 2 38303129111626. . . . . . . . 676970.   2
	 1 . 37444240. . . . . . . . . . . . . .   1
	   a b c d e f g h j k l m n o p q r s t
  A B C D E F G H J K L M N O P Q R S T
   +-------------------------------------+

19 |. . . . . . . . . . . . . . . . . . .| 19 18 |. . . O . # . . # # O . . . . . . . .| 18 17 |. . O . O . # O O # O . . # O . . . .| 17 16 |. . # O . . # # # O O . . # O O O . .| 16 15 |. . # O O O O # O # O . . . . . # . .| 15 14 |. . # # # O # # O # O # . O O O # . .| 14 13 |. . . . # # O O O # . O . . # # . . .| 13 12 |. # O O O O O O # # . O O # . . # . .| 12 11 |. # O # # . O # O # . # O O # . . . .| 11 10 |. . # O . O . # O # . # O # # O . # .| 10

 9 |. . # O . O # # O . . # O # O O O O .|  9
 8 |. . # O # . O # . # . O # . # . . . .|  8
 7 |. . . # . . O # . . . . . . . . . . .|  7
 6 |. # # . . # . # . . . . . . . O . . .|  6
 5 |O O O O O # . . . . # # . # . . . . .|  5
 4 |O . . O . O O . # # O . . . . O . . .|  4
 3 |. . . O . . O . O O . O . # . . O . .|  3
 2 |O O . . . O O . . . . . . . . # # O .|  2
 1 |. # O O O . . . . . . . . . . . . . .|  1
   +-------------------------------------+
    A B C D E F G H J K L M N O P Q R S T

tderz: Ed, please go to the next question. (in attempts)
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This is a copy of the living page "Tsumego From Games 60" at Sensei's Library.
(OC) 2005 the Authors, published under the OpenContent License V1.0.
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