Brain games: puzzles, riddles, and logical games.
Users rating Registration FAQ

Puzzles, riddles, logical games, mathematics

www.puzzlesriddles.com on Facebook
 

 
Login:
Password:
Remember?
Change password



1. pretorik - 161
2. markr - 116
3. Gordon Weir - 104
4. mbloomfi - 97
5. Dennis Nazarov - 96
6. zzz123 - 72
7. Srikanta - 56
8. lidSpelunker - 53
9. SAMIH FAHMY - 48
10. jkr - 44


1. denisR, mishik - 236
2. alan, De_Bill - 231
3. dddfff - 228
4. kavfy - 221
5. idler_ - 106
6. akajobe - 94
7. tolstyi - 56
8. STARuK - 42
9. vale - 31
10. xandr - 11



A poisoned chocolate bar Games puzzles  Weight: 5 Liked the puzzle: 100% 26.12.2009
A chocolate bar consists of NxM (at least two) square pieces arranged in a rectangle. The square in the upper left corner is poisoned. Two players break off the squares from the bar and eat them. If a player chooses a certain square, he must also take all of the remaining squares that have row/column numbers not less than the chosen one. A player forced to take the poisoned square loses. Prove that the first player to make a move has a winning strategy.
Comments:   3 check your solution  

Please do not post comments containing clues, hints, or anything that might be considered as a hint to others. All such comments will be deleted. If you have a question, you can contact a moderator by clicking the button "Submit your solution".

alan
 
Rating: 231
Group: Moderators
äîáàâëåí 2009-12-26 14:42:27
Reserved.
zzz123 2011-03-18 06:57:54
"row/column numbers" - what number is the poison square? 1,1? n,m? something else?

1 and 1.
iellwood
 
Rating: 3
Group: Members
äîáàâëåí 2010-01-05 01:54:37
[deleted because of spoiler]
alan
 
Rating: 231
Group: Moderators
äîáàâëåí 2010-01-10 11:04:56
iellwood 2010-01-05 01:54:37
***

Then why didn't you answer?



 
Users online 0: administrator -  administrator  moderator -  moderator  VIP user -  VIP user  user -  user
en.braingames.ru © 2006-2010 All Rights Reserved