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# Excavation Site Gems

## Replies

• 944 posts Member
edited May 2017
Edit: This is now changed to a maximum of 10 moves. Credit to davejandals for getting the right order. Square marked as 0 is actually the 10th choice.

x5xx9x
xxx1xx
6xxxx4
xx2xxx
0xxx3x
x7xx8x

Post edited by teo47 on
New neighbors always welcome!
• 134 posts Member
we need numbered photos for any new theory. this maths is blowing my brain
• 1496 posts Member
Great info! It never occurred to me that there might be a pattern.
BulldogMom23 in Crawl to the Finish
• 4 posts Member
Hi, I've got this down to 10 moves max. Hope this helps someone

First 3 moves cover 5 squares each:

_ x _ _ _ _

x 1 x _ x _

_ x x x 3 x

_ x 2 x x _

_ _ x _ _ _

_ _ _ _ _ _

Next 4 moves cover 4 squares each:

_ x x 4 x _

x 1 x x x _

_ x x x 3 x

x x 2 x x x

5 x x x x 7

x _ x 6 x x

If you haven't found the gem in these 31 squares / 7 moves, you can finish the board in 3 more moves:

x x x 4 x x

8 1 x x x 9

x x x x 3 x

x x 2 x x x

5 x x x x 7

x 0 x 6 x x

I'd be keen to know if anyone's found a solution to cover the board in less than 10 moves
• 944 posts Member
edited May 2017
Hi, I've got this down to 10 moves max. Hope this helps someone

First 3 moves cover 5 squares each:

_ x _ _ _ _

x 1 x _ x _

_ x x x 3 x

_ x 2 x x _

_ _ x _ _ _

_ _ _ _ _ _

Next 4 moves cover 4 squares each:

_ x x 4 x _

x 1 x x x _

_ x x x 3 x

x x 2 x x x

5 x x x x 7

x _ x 6 x x

If you haven't found the gem in these 31 squares / 7 moves, you can finish the board in 3 more moves:

x x x 4 x x

8 1 x x x 9

x x x x 3 x

x x 2 x x x

5 x x x x 7

x 0 x 6 x x

I'd be keen to know if anyone's found a solution to cover the board in less than 10 moves

Wow, you are correct! This is basically the same as what I posted above, but I missed that you can knock it down to 10 by testing the square in between the two blanks instead of testing them individually. Nice work!
New neighbors always welcome!
• 4499 posts Member
Thanks everyone who posted in this thread, nice work! I have added this info to the Q&A strategy thread too.

• 5440 posts Member
Hi, I've got this down to 10 moves max. Hope this helps someone

First 3 moves cover 5 squares each:

_ x _ _ _ _

x 1 x _ x _

_ x x x 3 x

_ x 2 x x _

_ _ x _ _ _

_ _ _ _ _ _

Next 4 moves cover 4 squares each:

_ x x 4 x _

x 1 x x x _

_ x x x 3 x

x x 2 x x x

5 x x x x 7

x _ x 6 x x

If you haven't found the gem in these 31 squares / 7 moves, you can finish the board in 3 more moves:

x x x 4 x x

8 1 x x x 9

x x x x 3 x

x x 2 x x x

5 x x x x 7

x 0 x 6 x x

I'd be keen to know if anyone's found a solution to cover the board in less than 10 moves

Awesome! Thanks for sharing.
• 76 posts Member
Uh, it's pretty obvious that the smaller rocks are intended as a "hint" at where the gem is. It's like you people have never played minesweeper...
• 944 posts Member
edited May 2017
Typed up a quick Google Doc that hopefully explains the 10 shovel solution in a bit more detail. Link is in my signature as posting it within the thread is against forum rules.
New neighbors always welcome!
• 5440 posts Member
afscott wrote: »
Uh, it's pretty obvious that the smaller rocks are intended as a "hint" at where the gem is. It's like you people have never played minesweeper...

We realize that but shovels are limited and figuring out the most efficient way to find the gem will allow us to get more materials.
• 542 posts Member
Worst case scenario: didn't hit gem until 16th shovel. Can't see any here that I shouldn't have dug ?

• 5440 posts Member
Worst case scenario: didn't hit gem until 16th shovel. Can't see any here that I shouldn't have dug ?

Look at the order @davejandals posted above. It is the most efficient way to find the gem. You want to space out the holes so each square is only checked by one hole instead of multiple. (Hopefully that makes sense.)
• 2408 posts Member
Hi, I've got this down to 10 moves max. Hope this helps someone

First 3 moves cover 5 squares each:

_ x _ _ _ _

x 1 x _ x _

_ x x x 3 x

_ x 2 x x _

_ _ x _ _ _

_ _ _ _ _ _

Next 4 moves cover 4 squares each:

_ x x 4 x _

x 1 x x x _

_ x x x 3 x

x x 2 x x x

5 x x x x 7

x _ x 6 x x

If you haven't found the gem in these 31 squares / 7 moves, you can finish the board in 3 more moves:

x x x 4 x x

8 1 x x x 9

x x x x 3 x

x x 2 x x x

5 x x x x 7

x 0 x 6 x x

I'd be keen to know if anyone's found a solution to cover the board in less than 10 moves

Mine's just a slight modification to what you have.:

0 x x 4 x 9

x 1 x x x x

x x x x 3 x

7 x 2 x x x

x x x x x 6

x 5 x 8 x x

There are some shifts that can be made (e.g., number 9 can be at either position without changing the result). The main thing I see is that your #8 has to be placed on a spot that has already been ruled out, which seems a little less efficient. I'm sure there are some other little tweaks that can be made to mine, too.
• 2353 posts Member
I'd like to thank everyone here by not visiting the main strategy thread.
• 944 posts Member
Hi, I've got this down to 10 moves max. Hope this helps someone

First 3 moves cover 5 squares each:

_ x _ _ _ _

x 1 x _ x _

_ x x x 3 x

_ x 2 x x _

_ _ x _ _ _

_ _ _ _ _ _

Next 4 moves cover 4 squares each:

_ x x 4 x _

x 1 x x x _

_ x x x 3 x

x x 2 x x x

5 x x x x 7

x _ x 6 x x

If you haven't found the gem in these 31 squares / 7 moves, you can finish the board in 3 more moves:

x x x 4 x x

8 1 x x x 9

x x x x 3 x

x x 2 x x x

5 x x x x 7

x 0 x 6 x x

I'd be keen to know if anyone's found a solution to cover the board in less than 10 moves

Mine's just a slight modification to what you have.:

0 x x 4 x 9

x 1 x x x x

x x x x 3 x

7 x 2 x x x

x x x x x 6

x 5 x 8 x x

There are some shifts that can be made (e.g., number 9 can be at either position without changing the result). The main thing I see is that your #8 has to be placed on a spot that has already been ruled out, which seems a little less efficient. I'm sure there are some other little tweaks that can be made to mine, too.

Nice work, this is indeed a slightly more efficient solution. Your square 7 has only two adjacent squares to be checked instead of three, and square 8 is a possible gem location instead of being known to be ruled out already.
New neighbors always welcome!
• 1496 posts Member
@davejandals and @HappyGamer73 Thank you so much for the strategy maps.

Both of you are now to blame for my excessive shovel purchases.
BulldogMom23 in Crawl to the Finish
• 2037 posts Member
Pretty sure its random. You can discuss spaces or pretend to know when the next one will appear all you want but each one is random. I'm 99% sure of that. But yes its guaranteed to show up next to the "rock" you find. That I know for a fact. Making graphs is a waste of time lol
~Always be Designing~
Don't increase the Item Limit? Then I don't play. Period.
• 496 posts Member
1pillform wrote: »
Pretty sure its random. You can discuss spaces or pretend to know when the next one will appear all you want but each one is random. I'm 99% sure of that. But yes its guaranteed to show up next to the "rock" you find. That I know for a fact. Making graphs is a waste of time lol

I think you're missing the point. The maps are all about solving the puzzle by using the least amount of shovels possible.

I would like to thank everyone who's contributed and I would also like to say that I've used the maps and had pretty spectacular results so far. Solved 3 maps and using 17 shovels on my last round.
• 1496 posts Member
Great discussion here, by "solving" this it will save us all shovels and get us the prizes faster. It's just so hard to remember, I may need to keep all my day's shovels for when I can get to a computer to follow the step by step instructions!

For now I'll be adopting the @HappyGamer73 algorithm until anyone finds a more efficient way.

Thanks!
I like routine!
• 22 posts Member
Here is the pattern I am using. It optimized clearing land.