Life In 19x19

Posted: **Sat Jan 01, 2011 4:39 pm**

Spoiler Alert: The diagram below contains answers to previous problems!

Problem #3. Level: Difficult

The black group extending from the upper-right corner to center is surrounded. Can it live?

Click Here To Show Diagram Code: [go]$$Bc Position at move 195, Black to play $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . X X . . . . . X O . . . . | $$ | . X X . X X . X O . O . X X O . O O . | $$ | . . O , X . . X . , . . . . X X O X X | $$ | . X . O O X X X O . O . X X O . X O . | $$ | . . . . . O O O . O X X . O O . O O . | $$ | . . . X O . . . . X X . O . . . . . . | $$ | . . . . . . . . . X O O . O O . O X . | $$ | . . X . O . . O . X . X O X O . O X . | $$ | . . . , O . X O O X X X X X O O X X . | $$ | . . . . . . X X O . X X O O X O O X . | $$ | . O X . . O . X X O O O O X X X X X . | $$ | . . . . . . O O X X X O . O X . X O . | $$ | . O O . O O X O O . . . O . X X O . O | $$ | . O X . . X X . O X X O . O O . O O . | $$ | O X X X . . . X O O X X O X O , O . . | $$ | . O O X . X X . O . O X . X X X O . . | $$ | . . . . X O O X O . O X . . X . X O . | $$ | . . . . . X . . . . . . . . . X . X . | $$ ---------------------------------------[/go]

Life In 19x19

3 L&D problems from an ancient Chinese game

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