Excavation Site Gems
After spending some donuts on shovels, I've noticed that the gem always seems to be next to the rocks. Example: - - - - Rock Rock Gem Rock - - - - Rock Anyone seen it ...
Forum Discussion
"HappyGamer73;c-1623472" wrote:"davejandals;c-1623403" wrote:
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.
