Life In 19x19
http://lifein19x19.com/

What's up with your endgame?
http://lifein19x19.com/viewtopic.php?f=15&t=15561
Page 1 of 1

Author:  Gomoto [ Sun Apr 01, 2018 2:38 am ]
Post subject:  What's up with your endgame?

Dont settle for less! Go for the best move:

Problem 1:
Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . X O . . . . . . . . . |
$$ | . X X X X O X X . O . . . O X X . . . |
$$ | . O X O O . O O . , . . . O O , X . . |
$$ | . . O O . O . . . O . . . . . O X . . |
$$ | . . . . . X . . . . . . . . X O X . . |
$$ | . . O . . . . X O . . . . O O X . . . |
$$ | . . O X . X X O O . . . . . . X . . . |
$$ | . . O X . . X X O . . . O . O X . . . |
$$ | . X X O X O O X O , . . . . . X O . . |
$$ | . X O O X O X O . . . . . . . X . . . |
$$ | . X X O X X X . . . . . . . . . . . . |
$$ | . X O O . . . . . . . . . . . . . . . |
$$ | . X O . O . . X . X . . . . X . X . . |
$$ | . . X O . . X O . . . . . O . . . X X |
$$ | . . X O . O O X X , . . . . . O O O X |
$$ | . . X O . . X O X X . . O . . . . . O |
$$ | . X O O . . O O O X . . . . . . . O . |
$$ | . W . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]


Solution 1:
Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . X O . . . . . . . . . |
$$ | . X X X X O X X . O . . . O X X . . . |
$$ | . O X O O . O O . , . . . O O , X . . |
$$ | . . O O . O . . . O . . . . . O X . . |
$$ | . . . . . X . . . . . . . . X O X . . |
$$ | . . O . . . . X O . . . . O O X . . . |
$$ | . . O X . X X O O . . . . . . X . . . |
$$ | . . O X . . X X O . . . O . O X . . . |
$$ | . X X O X O O X O , . . . . . X O . . |
$$ | . X O O X O X O . . . . . . . X . . . |
$$ | . X X O X X X . . . . . . . . . . . . |
$$ | . X O O . . . . . . . . . . . . . . . |
$$ | . X O . O . . X . X . . . . X . X . . |
$$ | . . X O . . X O . . . . . O . . . X X |
$$ | . . X O . O O X X , . . . . . O O O X |
$$ | . . X O . . X O X X . . O . . . . . O |
$$ | B X O O . . O O O X . . . . . . . O . |
$$ | . O . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

Author:  Gomoto [ Sun Apr 01, 2018 2:41 am ]
Post subject:  Re: What's up with your endgame?

Problem 2:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O . . O . . . . . |
$$ | . . . . . X . X X O . . O . O X . . . |
$$ | . X X X X O X X O O . . . O X X . . . |
$$ | . O X O O . O O . , . . . O O , X . . |
$$ | . . O O . O . . . O . . . . . O X . . |
$$ | . . . . . X . . . . . . . . X O X . . |
$$ | . . O . . . . X O . . . . O O X . . . |
$$ | . . O X . X X O O . . . . . . X . . . |
$$ | . . O X . . X X O . . . O . O X . . . |
$$ | . X X O X O O X O , . . . . . X O . . |
$$ | . X O O X O X O . . . . . . . X . . . |
$$ | . X X O X X X . . . . . . . . . . . . |
$$ | . X O O . . . . . . . . . . . . . . . |
$$ | . X O . O . . X . X . . . . X . X . . |
$$ | . . X O . . X O . . . . . O . . . X X |
$$ | . . X O . O O X X , . . . . . O O O X |
$$ | . X X O . . X O X X . W O . . . . . O |
$$ | . X O O . . O O O X . X O . . . . O . |
$$ | . O . . . . . . . . . X X O . . . . . |
$$ +---------------------------------------+[/go]


Solution 2:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O . . O . . . . . |
$$ | . . . . . X . X X O . . O . O X . . . |
$$ | . X X X X O X X O O . . . O X X . . . |
$$ | . O X O O . O O . , . . . O O , X . . |
$$ | . . O O . O . . . O . . . . . O X . . |
$$ | . . . . . X . . . . . . . . X O X . . |
$$ | . . O . . . . X O . . . . O O X . . . |
$$ | . . O X . X X O O . . . . . . X . . . |
$$ | . . O X . . X X O . . . O . O X . . . |
$$ | . X X O X O O X O , . . . . . X O . . |
$$ | . X O O X O X O . . . . . . . X . . . |
$$ | . X X O X X X . . . . . . . . . . . . |
$$ | . X O O . . . . . . . . . . . . . . . |
$$ | . X O . O . . X . X . . . . X . X . . |
$$ | . . X O . . X O . . . . . O . . . X X |
$$ | . . X O . O O X X , . . . . . O O O X |
$$ | . X X O . . X O X X . O O . . . . . O |
$$ | . X O O . . O O O X . X O . . . . O . |
$$ | . O . . . . . . . B . X X O . . . . . |
$$ +---------------------------------------+[/go]

Author:  Gomoto [ Sun Apr 01, 2018 2:50 am ]
Post subject:  Re: What's up with your endgame?

Problem 3:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O O . O O O O X . |
$$ | X X . . . X . X X O X . O . O X X X . |
$$ | O X X X X O X X O O . . . O X X . . . |
$$ | O O X O O . O O . , . . . O O X X . . |
$$ | . O O O . O . . . O . . . . O O X . . |
$$ | O . . . b X . X X O . . . . X O X . . |
$$ | X O O a . . . X O . . . . O O X . . . |
$$ | . . O X . X X O O . O . . O X X . . . |
$$ | X . O X . . X X O . X O O . O X . . . |
$$ | . X X O X O O X O , X X . O . X O . . |
$$ | . X O O X O X O O X . . X O . X . . . |
$$ | . X X O X X X . . X O X X O X . . . . |
$$ | . X O O X . . . . X O X O X X . . X . |
$$ | . X O O O . X X . X O X O O X . X . . |
$$ | . . X O . O X O . . O O O O X . O X X |
$$ | . . X O . O O X X , . . O X X O O O X |
$$ | . X X O . . X O X X X O O O O . . . O |
$$ | . X O O . . O O O X X X O . . . . O . |
$$ | . O . . . . . . . O . X X O . . . . . |
$$ +---------------------------------------+[/go]


Solution 3:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O O . O O O O X . |
$$ | X X . . . X . X X O X . O . O X X X . |
$$ | O X X X X O X X O O . . . O X X . . . |
$$ | O O X O O . O O . , . . . O O X X . . |
$$ | . O O O . O . . . O . . . . O O X . . |
$$ | O . . . B X . X X O . . . . X O X . . |
$$ | X O O . . . . X O . . . . O O X . . . |
$$ | . . O X . X X O O . O . . O X X . . . |
$$ | X . O X . . X X O . X O O . O X . . . |
$$ | . X X O X O O X O , X X . O . X O . . |
$$ | . X O O X O X O O X . . X O . X . . . |
$$ | . X X O X X X . . X O X X O X . . . . |
$$ | . X O O X . . . . X O X O X X . . X . |
$$ | . X O O O . X X . X O X O O X . X . . |
$$ | . . X O . O X O . . O O O O X . O X X |
$$ | . . X O . O O X X , . . O X X O O O X |
$$ | . X X O . . X O X X X O O O O . . . O |
$$ | . X O O . . O O O X X X O . . . . O . |
$$ | . O . . . . . . . O . X X O . . . . . |
$$ +---------------------------------------+[/go]

Author:  Gomoto [ Sun Apr 01, 2018 2:54 am ]
Post subject:  Re: What's up with your endgame?

Problem 4:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O O . O O O O X . |
$$ | X X . . . X . X X O X . O . O X X X . |
$$ | O X X X X O X X O O . . . O X X . . . |
$$ | O O X O O . O O . , . . . O O X X . . |
$$ | . O O O . O . . O O . . . . O O X . . |
$$ | O . X X O X O X X O . . . . X O X . . |
$$ | . O O X X X . X O . . . . O O X . . . |
$$ | O . O X . X X O O . O . . O X X . . . |
$$ | X O O X . . X X O . X O O . O X . . . |
$$ | X X X O X O O X O , X X . O . X O . . |
$$ | . X O O X O X O O X . . X O . X . . . |
$$ | . X X O X X X . O X O X X O X . . . . |
$$ | . X O O X . a W O X O X O X X . . X . |
$$ | . X O O O b X X X X O X O O X . X . . |
$$ | . . X O . O X O . . O O O O X . O X X |
$$ | . . X O . O O X X , . . O X X O O O X |
$$ | . X X O . . X O X X X O O O O . . . O |
$$ | . X O O . . O O O X X X O . . . . O . |
$$ | . O . . . . . . X O . X X O . . . . . |
$$ +---------------------------------------+[/go]


Solution 4:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O O . O O O O X . |
$$ | X X . . . X . X X O X . O . O X X X . |
$$ | O X X X X O X X O O . . . O X X . . . |
$$ | O O X O O . O O . , . . . O O X X . . |
$$ | . O O O . O . . O O . . . . O O X . . |
$$ | O . X X O X O X X O . . . . X O X . . |
$$ | . O O X X X . X O . . . . O O X . . . |
$$ | O . O X . X X O O . O . . O X X . . . |
$$ | X O O X . . X X O . X O O . O X . . . |
$$ | X X X O X O O X O , X X . O . X O . . |
$$ | . X O O X O X O O X . . X O . X . . . |
$$ | . X X O X X X . O X O X X O X . . . . |
$$ | . X O O X . B O O X O X O X X . . X . |
$$ | . X O O O . X X X X O X O O X . X . . |
$$ | . . X O . O X O . . O O O O X . O X X |
$$ | . . X O . O O X X , . . O X X O O O X |
$$ | . X X O . . X O X X X O O O O . . . O |
$$ | . X O O . . O O O X X X O . . . . O . |
$$ | . O . . . . . . X O . X X O . . . . . |
$$ +---------------------------------------+[/go]


Failure (one more sente move for white):

Click Here To Show Diagram Code
[go]$$W
$$ +---------------------------------------+
$$ | . . . . . . . . X X O O . O O O O X . |
$$ | X X . . . X . X X O X . O . O X X X . |
$$ | O X X X X O X X O O . . . O X X . . . |
$$ | O O X O O . O O . , . . . O O X X . . |
$$ | . O O O . O . . O O . . . . O O X . . |
$$ | O . X X O X O X X O . . . . X O X . . |
$$ | . O O X X X . X O . . . . O O X . . . |
$$ | O . O X . X X O O . O . . O X X . . . |
$$ | X O O X . . X X O . X O O . O X . . . |
$$ | X X X O X O O X O , X X . O . X O . . |
$$ | . X O O X O X O O X . . X O . X . . . |
$$ | . X X O X X X . O X O X X O X . . . . |
$$ | . X O O X 2 1 O O X O X O X X . . X . |
$$ | . X O O O B X X X X O X O O X . X . . |
$$ | . . X O . O X O . . O O O O X . O X X |
$$ | . . X O . O O X X , . . O X X O O O X |
$$ | . X X O . . X O X X X O O O O . . . O |
$$ | . X O O . . O O O X X X O . . . . O . |
$$ | . O . . . . . . X O . X X O . . . . . |
$$ +---------------------------------------+[/go]

Author:  Gomoto [ Sun Apr 01, 2018 2:59 am ]
Post subject:  Re: What's up with your endgame?

Problem 5:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O O . O O O O X . |
$$ | X X . . . X . X X O X . O . O X X X . |
$$ | O X X X X O X X O O . . . O X X . . . |
$$ | O O X O O O O O . , . . . O O X X . . |
$$ | . O O O . O . . O O . . . . O O X . . |
$$ | O . X X O X O X X O . . . . X O X . . |
$$ | . O O X X X . X O . . . . O O X . . . |
$$ | O . O X . X X O O O O . . O X X . . . |
$$ | X O O X . . X X O X X O O b O X . . . |
$$ | X X X O X O O X O , X X O O X X O . . |
$$ | . X O O X O X O O X . X X O a X . . . |
$$ | . X X O X X X . O X O X X O X . . . . |
$$ | . X O O X X O O O X O X O X X X . X . |
$$ | . X O O O X X X X X O X O O X O X . . |
$$ | . . X O . O X . X O O O O O X O O X X |
$$ | . . X O . O O X X , O . O X X O O O X |
$$ | . X X O . . X O X X X O O O O . . . O |
$$ | X X O O . . O O O X X X O . . . . O . |
$$ | X O O . . . . O X . X X X O . . . . . |
$$ +---------------------------------------+[/go]


Solution 5:

Click Here To Show Diagram Code
[go]$$
$$ +---------------------------------------+
$$ | . . . . . . . . X X O O . O O O O X . |
$$ | X X . . . X . X X O X . O . O X X X . |
$$ | O X X X X O X X O O . . . O X X . . . |
$$ | O O X O O O O O . , . . . O O X X . . |
$$ | . O O O . O . . O O . . . . O O X . . |
$$ | O . X X O X O X X O . . . . X O X . . |
$$ | . O O X X X . X O . . . . O O X . . . |
$$ | O . O X . X X O O O O . . O X X . . . |
$$ | X O O X . . X X O X X O O B . X . . . |
$$ | X X X O X O O X O , X X O O X X O . . |
$$ | . X O O X O X O O X . X X O . X . . . |
$$ | . X X O X X X . O X O X X O X . . . . |
$$ | . X O O X X O O O X O X O X X X . X . |
$$ | . X O O O X X X X X O X O O X O X . . |
$$ | . . X O . O X . X O O O O O X O O X X |
$$ | . . X O . O O X X , O . O X X O O O X |
$$ | . X X O . . X O X X X O O O O . . . O |
$$ | X X O O . . O O O X X X O . . . . O . |
$$ | X O O . . . . O X . X X X O . . . . . |
$$ +---------------------------------------+[/go]

Author:  Gomoto [ Fri Apr 13, 2018 1:14 pm ]
Post subject:  Re: What's up with your endgame?

Problem 6

White is winning. Find the next two moves for white!

Can you win the won game or do you botch it like Gomoto? :lol: (I found the first, but not the second.)

Click Here To Show Diagram Code
[go]$$W
$$ +---------------------------------------+
$$ | . . X . X . . . . . . O X . . . . . . |
$$ | . X . X O X . X O . . O X X . . X X . |
$$ | . . X O . . . X O O O . O X X X . . X |
$$ | . X . O . . . O O X X O O O O O X X X |
$$ | . O . . O O . . X . . X O . . . O O X |
$$ | . . O . X O X . X . . X . X O . . . O |
$$ | . . . O O X . . . X . X X X O . . O . |
$$ | . . X . X . X X X . X O X O . . . . . |
$$ | . . . . X X O O X X O O O O O . . . . |
$$ | . X X , X O O O . , O . . X . , . . . |
$$ | O O O . X O . O O . . . . . X . . . . |
$$ | X X O . X O O X O . O O O O X . . O . |
$$ | . O X X X O X X X X X X X X O O O . . |
$$ | . O O O O X . . . . . . . . X X X O . |
$$ | . . . . . X . . . . . . . . . X O O . |
$$ | . . . O O X . . . , . . . . . X O O X |
$$ | . . O X X X . . . . . . . . . X O . O |
$$ | . . O O O X X . . . . . . . . X X O . |
$$ | . . . . O O X . . . . . . . . . . . O |
$$ +---------------------------------------+[/go]


Solution
let us wait a little bit

Page 1 of 1 All times are UTC - 8 hours [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/