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#1




What are the least possible amount of moves in spider solitaire?
This may belong in the Game Room but I think it may be more of a math question than a gaming question. Using 8 suits and 10 rows (like the game that comes with MS) what is the least number of moves needed to win the game? Does this number change with added suits? How would one figure this out?

#2




Seems to me the least possible number of moves is whatever number of cards you have.

#3




Please explain the reasoning. Thanks.

#4




P.S., I can see that it would be the number of cards you have minus 8. Is that correct?



#5




You have ten piles and you can move cards together if they're in order and remove them when they're a complete sequence. Right? In that scenario there is a combination of cards which lets you remove all the cards after moving them at most once.
Imagine a simplified situation with all the cards on the table. Imagine one of the first cards is a king and you have next highest cards in that suit visible. Move nine cards onto the king and nine more cards are available. (I'm not counting flipping over a face down card as a move.) Three of these are the necessary suit, so you move them and then remove the completede sequence. We're now back to the start, only with fewer cards in the piles. Repeat until all cards are gone. Counting moving a card and removing the completede sequence as moves, and not counting turning a card over or dealing out the remaining cards as moves, we get one move per card. Arranging the cards so this is possible could be achieved simply by dealing them in sequence in the opposite order of removal. 
#6




Quote:
But if flipping, dealing and moving counted that would be, um, more than the number of cards. Last edited by Biggirl; 05082012 at 08:14 AM. 
#7




Wait a minute. If this scenario is true than it wouldn't matter how many rows you have. Or you'd need at least as many rows as suits. With more rows than suits or less rows than suits, wouldn't that change things somehow?
My math and logic bones aren't working. 
#8




Quote:
a e b A d B c C E D Now you can move one card at a time onto E, remove the completed sequence and then move the second suit onto e. More collumns, more suits, cards to be delt during the game. There's always a way to arrange them so one move per card suffices. 
#9




Not counting dealing, turning, and removing, the minimum is 46 moves.
You start with 54 cards in the tableau. To get the minimum, all the kings must be somewhere in the tableau. When cards are dealt, they must be placed on top of the next card up in sequence. That is, a 2 of Clubs must be dealt on top of a 3 of Clubs, a 6 of Diamonds must go on a 7 of Diamonds, etc. This means the dealt cards do not have to be further moved. So the only cards that have to be moved are the nonkings in the tableau. There are 46 of those. Now if you count dealing, then it is indeed 96 moves. Or 51, if you count a deal of 10 cards as one move. Counting turning and removing will up the total, of course.
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to imagine the TimbersSounders rivalry, take the VikingsPackers rivalry and add more beards, coffee, IPA, and rain  some blogger Last edited by dtilque; 05082012 at 06:26 PM. 


#10




Quote:
But there are 52 cards in the deck.... 
#11




The OP was talking about the version that comes with Windows. That version (and every version I've seen) is played with a double deck of 104 cards. The initial tableau is 54 cards in 10 columns. The other 50 cards are dealt out in 5 sets of 10 cards each.
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to imagine the TimbersSounders rivalry, take the VikingsPackers rivalry and add more beards, coffee, IPA, and rain  some blogger Last edited by dtilque; 05092012 at 02:24 AM. 
#12




I play spider solitaire [on my computer] using the one suit option and have finished a game in 96 moves several times, with a score of 1204, can't seem to do better than that moves wise, but I have had a higher score a few times because of a bug (I think the highest I got was 1288)

#13




Quote:

#14




"Scoring" is really iffy to compare given that different programs use different scoring systems. (As well as number of decks used, suite stacking rules, etc.)
My fave was the old Sun OS/Solaris version. No auto moving completed piles, allowed scoring to 1000 (not moving piles is a plus), etc. (The current Linux version is not the same.) I use John Junod's old Windows Spider Solitaire on WinTel boxes. Also no auto moves, but scoring only goes up to 990. (Forces you to move piles up to "win".) Unfortunately a resource hog and can't use on a laptop, even with priority set low. It has a lowest move count for me of 225, two decks. But since I don't go for lowest moves, but solving without moving piles up, I could have probably done much better. The current MS version is the worst version I have ever seen. It's useless. 


#15




Funny question that I've been wondering about for years. One time I got a 1204 which calculates to 96 moves & it was a few years ago. I just got it in 99 moves for which I had a minor celebration. I've gotten a lot of 99's or 1201's which ever way you look at.
The funny part is when I got the 96 I wasn't really paying attention that much & I was blown away at the end. Ever since I have tried various methods to get that score, some games I start building from the lowest cards & up, other times I go from the top down and it seems the harder I concentrate the lower my score is, frustrating in deed, So far with my current laptop my highs are all 1201's or 99's I just cannot see it being mathematically possible to beat 96 moves, for a long time I thought getting 100 moves was the perfect score,lol
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I don't sign stuff I just make a squiggly line which isn't possible here 
#16




Number of moves
I have been playing this game for some time now and consistently get 95101 scores. This morning I freaked when I got a 92. Now I have to keep playing to see if I can get a lower score.

#17




my low scores
Quote:
Whenever I save a screenshot I include a date clock in the capture. I do this because my program has the wrong date and also has an incorrect highest score. I disregard the score because for me the important thing is fewest moves. I found this forum when I was searching for a way to correct the incorrect date and high score. I was looking for a way to include a screenshot here for proof but don't see the option. 
#18




I was doing a Google search for the fewest number of moves in Spider Solitaire when I happened upon this forum. I never kept track of what the highest score was...just the number of moves that it took to complete this totally addicting game (especially when I'm killing time waiting on the phone).
Based upon my own usage, I'm starting to believe that the lowest number of moves is 86. I first hit 86 on 2/25/05. Of course this started me on a quest to break that. It took over three years, but I hit 86 again on 10/24/08. And, of course (the mark of a true addict), this compelled me to keep trying. I hit 86 moves again this month (3/14/13). Considering the time that it took between "86's" I am now fairly convinced that any number of moves less than that is probably impossible. 
#19




Apparently my relationship with Spider solitaire is completely different than that of everyone else. I like the highmove games the best: nothing is more satisfying than putting order to something that is a crumpled, distorted mess, and the very best games are the ones where you need to break runs up and reconfigure them a dozen different ways to work your way up a row to get to the card you need.



#20




Quote:

#21




Least number of moves in spider solitaire
Someone said that the least number of moves would be if every card played. That would be 8 x 12 or 96 moves. However, there are 50 cards in the draw pile, so if they play where they were dealt, then those moves would not count. In a perfect game, there would be only 46 moves.
Explanation: Mathematically, there are 8 suits of 13 cards or 104 total cards. You deal 10 columns of 5 cards plus 4 more cards for 54 cards. A perfect deal would show 5 Kings and 5 sevens. There remains 50 cards in the draw pile. Since there are no plays, you can draw 5 times. The 5 deals in a perfect game would be first 5 queens and 5 sixes, then 5 jacks and 5 fives, then 5 tens and 5 fours, then 5 nines and 5 threes, and would end up with 5 eights and 5 twos. So far, you have made no moves but can now make your first 5 moves. Move the 5 stacks of 7 through 2 on top of the 5 stacks of 8s, and the 5 Aces will show up under them. Make your next 5 moves by moving the Aces on top of the twos and clearing the first 5 stacks. You have just removed 5 sets of 13 cards or 65 cards and only made 10 moves. There remains 39 cards. From this point as long as the 3 kings are on the bottom of the last 3 stacks and there is a way to get to them, you should be able to clear the cards in 36 more moves for a total of 46 moves. 
#22




Which is what I said in post 11 of this thread. Thank you for confirming it.

#23




Corollary to least moves  High Score
If the least moves is 46... then the highest score should be 1254, but many are reporting higher scores. The score plus the number of moves is always a multiple of 100, so I did some investigation as to how to get these bonuses. Today I was able to get a score of 2562 in 438 moves for a total of 1700 bonus points.
Here is how to do it. Start to play a normal game, but don't try to win... Try to make the last possible move a completion of a KA run. If you do that, the game will award you the points, and then give you a chance to retry by undoing and trying again. The undo, will not take the 100 away. So just complete the run as many times as you want to get the highest score you want. I did it 17 times before I got bored, and then ran the undos back to where I could actually win the game. 
#24




Quote:
As I have stated in an earlier post, there are too many coincidences for the deal to be random. There is a right way to play it, and that is to concentrate on the highest card on the first deal, and the longest stacks from the second deal on. The exception is that a king down stack supersedes that. When there are two equal choices always choose the one on the left. Never make a move that clears a stack before the last screen, because then you have to make an extra move to place a card or cards in its place to be able to continue dealing. 
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