• #### Gomoku: How to always win

From matzern123@gmail.com@21:1/5 to All on Tue Feb 14 03:50:57 2017
torsdag 7. desember 2000 09.00.00 UTC+1 skrev Gregory A. Shimansky fĂ¸lgende:
Hello here :)

First, thanks to Stefan Monnier <foo@acm.com> for coloring gomoku for me :)
Now, I can't call it is exactly a bug report, but I found a
sequence of moves so you can win in 100% of times. You may consider it a
bug report because emacs makes a mistake.

Here we go. Let emacs always do the first move. After it if you put your X diagonally from emacs' O it puts next O near your X:

. . . .

. . X1 . (numbers next to O and X show the number of move)

. O1 O2 .

. . . .

If you got this, you know you will win :) The only problem happens when you put your X next to emacs' O and the second O goes diagonally from your X:

. . . .

. . O2 . (numbers next to O and X show the number of move)

. O1 X1 .

. . . .

In this situation I didn't figure the winning sequence yet.
But let's return to the first combination. Here is the complete sequence winning sequence:

. . O12 . . . . . . After move 8 emacs makes a big
mistake. It places its O not next to the
. O7 . X10 O5 . . . . three O from 3, 6 and 8 moves, but leaves
\ an empty space. After move X9 emacs is
. . X7 . X5 . . . . out of attacking moves so it has to defend.
\ O10 is an attempt to break unclosed four
. X8 O8 O6 O3 X9 O9 . . of X. X10 finishes creating two
\ unclosed threes of X which means
O11 . O10 . O4 X1 X11 . . you've won :)
\ O11 - an attempt to close one of threes.
. . . X3 O1 O2 X2 X12 . X11 - unclosed four
O12 - attempt to close it
. . . . X4 . X6 . . X12 - five X in a row

What I want to say is that move 8 was a mistake. Emacs allows me to place
my X to almost finish creating two crossing unclosed threes (which is a
sure win if you don't make mistakes). Trying to attack it should pay more attention to how I can defend.

Ok I am done. Just don't say I have too much free time :)
--
Gregory

fuck you, too complicated. Make a new one, im not satisfied

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