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 11-14-2009, 08:00 AM #1 okay   Join Date: Nov 2009 Pawn Duel "There are three pieces on the chess board left hand. First turn belongs to white ones. Pawns can go forward or backward. Goal of the game is to let no moves for your opponent." How can I win in this game [Don't read answer below ;)]? - Pawn Duel online Last edited by okay; 11-25-2009 at 10:38 AM.
 11-14-2009, 04:17 PM #2 PK Assistant GURPS Line Editor     Join Date: Aug 2004 Location: Dobbstown Sane Asylum Re: Pawn Duel Well, I give up. :) __________________ Reverend Pee Kitty of the Order Malkavian-Dobbsian (Twitter) (LJ) MyGURPS: My house rules and GURPS resources. #SJGamesLive: I answered questions about GURPS After the End and more! {Watch Video} - {Read Transcript}
 11-15-2009, 07:05 AM #3 Brandy     Join Date: Aug 2004 Location: Nashville, TN Re: Pawn Duel Let three numbers x-y-z describe the game state by giving the number of spaces between the pawns. For example, at the start of the game the game state is 6-6-6. There are two basic "always win" options the computer player is going for after its moves: a) n-n-0, where n is any number. (Note that this is the reason to prohibit players from moving past the half-way mark at the beginning of the game; otherwise, the first move would be to collapse a column immediately to bring the game to 6-6-0.) After reaching this state, you merely mirror the opponent's moves. b) 3-2-1. This is another scenario that you can always win from, because whatever your opponent does, you can create either a 2-2-0 or a 1-1-0 from it. It is not possible to beat the player that moves first. This appears to be the most "defensive" sequence that the AI will follow when you move first: Code: ```You AI 6-6-4 6-4-3 6-4-2 5-4-2 5-4-1 5-3-1 (Gotcha!) 3-2-1``` This has created one of the simple winning scenarios. The remainder of the game, for completeness: Code: ```3-2-1 2-2-1 2-2-0 2-1-0 1-1-0 1-0-0 0-0-0``` Interesting puzzle. :) __________________ I didn't realize who I was until I stopped being who I wasn't. Formerly known as Bookman- forum name changed 1/3/2018.
 11-15-2009, 01:53 PM #4 okay   Join Date: Nov 2009 Re: Pawn Duel but if AI answers 6-5-4?
11-15-2009, 04:29 PM   #5
Brandy

Join Date: Aug 2004
Location: Nashville, TN
Re: Pawn Duel

Quote:
 Originally Posted by okay but if AI answers 6-5-4?
You respond 5-4-1.
__________________
I didn't realize who I was until I stopped being who I wasn't.
Formerly known as Bookman- forum name changed 1/3/2018.

 11-16-2009, 03:46 AM #6 okay   Join Date: Nov 2009 Re: Pawn Duel Ah, so true. Sorry for my previous quick question and Thank You for your responses!
 11-16-2009, 03:17 PM #7 PK Assistant GURPS Line Editor     Join Date: Aug 2004 Location: Dobbstown Sane Asylum Re: Pawn Duel Thanks. Now I don't feel so bad about losing every single time. (The game glitched when the sides switched, so I just refreshed the page -- hence, I always played black.) It's basically Tic-Tac-Toe. __________________ Reverend Pee Kitty of the Order Malkavian-Dobbsian (Twitter) (LJ) MyGURPS: My house rules and GURPS resources. #SJGamesLive: I answered questions about GURPS After the End and more! {Watch Video} - {Read Transcript}
 11-16-2009, 03:32 PM #8 okay   Join Date: Nov 2009 Re: Pawn Duel I am lol-ing

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