hacker.org

Posted: **Wed Oct 07, 2009 7:34 pm**

Hi everybody

Could someone give me the solution to level 160 (the version at the bottom of this posting)? I'm currently stuck at level 271 with my solver finding no solution at all (doing an exhaustive search). In order to find the bug I rerun all the past puzzles, but the only else it couldn't solve was this level 160. Either I did introduce the bug only after that, or I slipped through by having another level 160 (I have seen at least one other). Unfortunately I did not backup older versions of my solver and thus am unable to get the solution to this 160 again. Solving it by hand seems to be impossible at that level. So if someone could provide the solution of it to me it would help me much in determining, why I don't find any solution.

burnpanck

Level 160:

Code: Select all

XX..XXXXXX......XXX..XXXX..XX..X.....X..X......XXXXXX....
....XXX.....XXX.X....XXX...X...X..XX.X....XXXX.X......X..
..X..XX.X.X..XX...XX.....X...X..X..X.......XXX...X....X.X
X.XX......XX........XXX.......X..X.XX.XXXX...XX....XX.X..
..XXX..X.........X........XXX.XX...XX.X..XXX..X...XX..XX.
.XXXX.......X..X...X......X.....X.....X...X...XX..XX...X.
......XXX...X..XX....XXXX.........X.X...X...XX...X...X...
..XX...X....X..XX.......XX..........X...........XX.X.XX..
..XX.X...X..X.....X...X...XX.....X............X..X......X
XXX....XXXXXX.X.....X........X.....XXX.X....X..X..X...X..
....X.....XXX....X.XX.XX...X......XXX..X.XX....XX...XXXX.
...XX...X..X...X.X..X..X....XXX.....X....X...X.....XXXX..
XX....XXXX...X......XX..XXX.............X..X...X.XXX....X
XX...................XX...X...XX...XXX....XX.....X...X..X
XX.XXXX...XXX....XXX.XX.....X....X..X..XXX....XX...XXXXXX
...XX...X.XXXXX......XX....XXXXX....X...X.....X....X.....
..X...XXX...XX..X...XX......X........XX...X.XX..X....X...
X.X....XX......X..X.X..X....X.XXXXXX.XXX.......XX.X......
X......XX..X.....XX...X..XX...XX.....X...X.XXX..X....XX..
XX...XX....X.XX....X....XX.....X.........X.........X.X...
X..X.X...X...X......XX.....X.X.....XX......XX..........X.
..X..X.X.....X.X..X.....X....XX.......X.........XXX...XX.
.XX....XX....X..XXX..X......X...X...X...X.......X...X..X.
.....XXX..X.....XX...X.X.X........X.X...XXXXXXX.X.X....X.
..XX...X....X......X.....X.X........X....XXXXX..X..XXXX..
..XX.....XX.....X.....XXX........XXXX..X.....X...X..XXX.X
...X....XXX..XX...X.......X.......X..X....XX...X..X.....X
...X..X...X..XX.....XX...XXX..XXX.X.......XX......X......
XXXX....X.XXXXX..XX.X..X...X...XX.....X...XX....X........
.....X..X..XX....X....X......X.XXXXX...XX.....X...XX.X...
....XX.....X.......X....X...XX..XXX..X.X....X........X.X.
..X...XX.XXX.X....XXXX....XXXXX.....XX...X.....X.XX......
X........XXX...X...X...X.............XXX...X.X.X......X.X
..XX......XX.....X...XXX.....X..XXXX.XXX...X.....X.XX.X..
.XX...XXX.XX..XX....XX..XXX..XXXXXXX...............XX.XX.
.XX.X...X..XX....XX.........X..XXX..........XX......X.X..
....X....X..X...XX..X......XX....X..........XX....X.....X
..XXX..X....XX..XX......XX....X...........X.....X....X...
..X..XXX..X....XXX.......X......X.XXXXXX......X.X..X...X.
X....XXXXX..X..X..XXXXXX.....X....XX.....X....X.....XX.X.
..XX..XX...X...X.....X....X..X...........X...XXXXXX......
.XXXX......X.X...X.....X....XX......X......X..XXX.....XXX
....XXXXX..X..X....XX....X.....X......X...XXX.X...XXX....
X...XXX.......X.X....XX......XXX....XXX....XX...XX..X....
..XXXXX.....X...X.X....XX.X...XXXXX.....XX..........XX...
.XX......XX.....X...X...X...X.XXX....XX.XXXX......X..X.X.
....X........X..XX....X.....X.XXX.XX..X..XXX.X.......X...
X.....X.........XX.......XX...X.......XX.XX..X.X........X
....XXXXX...X...XXXXXX...X......XX.X........X.....XXXXX..
.X....X...X....XXX.....XXX.XXX..XX.X.X..X.XXX.X........X.
.X.X....XXX..X...X.........X.....X...X....XXX....X.X...X.
...X.X...XXX..........X...XX.X.......X.....XX..X...X..XX.
..XX...X.X...XX...XXX...X.XX......X..X...X........XXX.XX.
...X.....X..XX..X..........X..X...X.XX.X.X...XX.....X.X..
...X......X..X.......XXX.X.X....X....X.....X....XXX.X...X
XXXX......XX.......X.....X...XX....X....XXXX..X.....X..XX

Posted: **Wed Oct 07, 2009 8:47 pm**

Each time you have a new session cookie (maybe something else), a new puzzle is generated. I know this because whenever I ran my programs (they used HTTPRequest and HTTPResponse), it gave a new map. I never bothered to save any information (like cash or cookie).

Posted: **Thu Oct 08, 2009 9:52 am**

Ah, so I should maybe just change my cookie and try another level 271. I didn't like to send a plaintext password, and the challange style spw don't seem to work, so I just use a cookie I took out manually from the browser.

However it still bothers me that my program seems to fail to find a solution in infrequent cases.

Posted: **Thu Oct 08, 2009 9:56 am**

I think it's easier to log out and back in. Well, it's a pretty funny bug, coming out this rare. Btw, congrats for that nice score. My brute force haven't gone that far.

hacker.org

Need solution to level 160 for debugging ...

Need solution to level 160 for debugging ...