[game;id:961649;move:48]

here: http://www.littlegolem.net/jsp/game/game.jsp?gid=961649&nmove=48

Q: After white's move, how many stones does it take for black to connect to the two sides in the left (bottom) corner?

[don't look at the following moves]

… 4 ?

[scroll down for solution]

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Solution:

http://www.littlegolem.net/jsp/game/game.jsp?gid=961649&nmove=55

5 minus 2 = 3 black moves (white defends 2 times)

ok, a second solution is also possible: 4 minus 1 = 3, putting one black stone in the corner, white must also defend once (after 4 black moves)

Problem 2:

[game;id:961407;move:20]

http://www.littlegolem.net/jsp/game/game.jsp?gid=961407&nmove=20

After white move, if black now takes top corner, can black win?

If not what are the next 3 moves (white black white)?

[solution]

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Solution (Problem 2):

Answer:

Black can not win (in a few moves).

For White to take left(upper) corner is wrong, because black wins the game by taking top/right side now (then, connect 3 sides).

Correct answer is (3 moves):

white threaten to cut at C9, black connects, white takes/blocks upper/right border;

if black now takes left(upper) corner it becomes a runnig fight towards left (bottom) corner …

(black does not win)