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This is a type of Minesweeper puzzle I created, although I don't have a name for it yet. The rules are simple:

  1. All standard Minesweeper rules apply

  2. All cells with a 0, 1, or a 5 or higher are revealed.

  3. The gray flags (F) represent a mine which, if it was a clue, it would be a 1. The flags are looking at the surrounding 8 squares, they do not count themselves. All possible gray flags are shown.

  4. There are no mines with 0 or 4 or more mines surrounding it. That is, every mine can see at least 1 other mine, and no mine can see 4 or more other mines.

Minesweeper Puzzle

It's possible this puzzle will be easy. I'm still experimenting making these. Let me know what you think.

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    $\begingroup$ So surrounding a grey square marked F, there are no mines in the surrounding 8 squares? $\endgroup$
    – ThankYouForFlyingRyanair
    Commented Mar 6 at 14:36
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    $\begingroup$ No. Surrounding a grey square marked F is exactly 1 mine. The grey squares act like a clue of 1. They do not count themselves. $\endgroup$
    – Truej
    Commented Mar 6 at 14:37
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    $\begingroup$ And can there be mines on the grey squares? $\endgroup$
    – ThankYouForFlyingRyanair
    Commented Mar 6 at 14:43
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    $\begingroup$ Yes. The grey squares are themselves mines. The picture shows 27 grey squares and on the right there is a count of the mines. 27 mines out of 63 have been found. Those are the grey squares. $\endgroup$
    – Truej
    Commented Mar 6 at 14:45
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    $\begingroup$ The grey squares are flags. In Minesweeper you mark the squares you believe are mines with a flag. It is fairly standard to use an F to denote a mine. I thought that was obvious, especially given that the picture says that 27 mines have been located and there are 27 flags. I will edit the post to include that information. $\endgroup$
    – Truej
    Commented Mar 6 at 15:20

2 Answers 2

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Answer:

minesweeper

Explanation:

Most of it was easy to deduce. Where there seemed to be several options, we have to use the fact that all F’s are already shown. That fixed what I missed before.

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    $\begingroup$ Your answer is incorrect. Remember ALL cells with a 1 as a clue are shown and ALL possible grey flags are shown. $\endgroup$
    – Truej
    Commented Mar 6 at 17:11
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    $\begingroup$ As an example, look at the bottom left corner. If the black dot there was a mine, would it qualify as a grey flag? $\endgroup$
    – Truej
    Commented Mar 6 at 17:25
  • $\begingroup$ @Truej. I missed that part. I updated my answer. Please let me know what you think. $\endgroup$
    – Pranay
    Commented Mar 6 at 17:38
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    $\begingroup$ Nice job. You got it. $\endgroup$
    – Truej
    Commented Mar 6 at 17:40
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A nice puzzle. It is not so hard and can be solved similarly to the usual Minesweeper, uncovering cells which are empty, and marking cells where a mine has to be.

Finally, there remains only five mines to detect.

 002F201 #. FF10
 00 # 22#5#   10
 11 .#F  #. 1 21
 ..       .1 ##1
  ###F FF    # 1
 1 34     #F
 0002F   F   3##
 001 # F212F## #
 001F # 102   21
 2 3  F 2 3F 110
 ## F   ###  F3
 #   # # 5    #F
   1F 22F FF F
 F   20113     .
 ..#F10001FF11#.

Now, thanks to Jaap Scherphuis and OP, who recalled me that all possible gray flags are shown, we can detect all mines but two.

 002F201 #  FF10
 00 # 22#5#   10
 11 .#F  ## 1 21
  #        1 ##1
  ###F FF    # 1
 1 34     #F
 0002F   F   3##
 001 # F212F## #
 001F # 102   21
 2 3  F 2 3F 110
 ## F   ###  F3
 #   # # 5    #F
   1F 22F FF F
 F   20113     .
  ##F10001FF11#.

So near the bottom right corner is at least one mine. Since there cannot be exactly one mine, there are two mines. Finally we obtain.

 002F201 #  FF10
 00 # 22#5#   10
 11  #F  ## 1 21
  #        1 ##1
  ###F FF    # 1
 1 34     #F
 0002F   F   3##
 001 # F212F## #
 001F # 102   21
 2 3  F 2 3F 110
 ## F   ###  F3
 #   # # 5    #F
   1F 22F FF F
 F   20113     #
  ##F10001FF11##

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    $\begingroup$ Could "All possible gray flags are shown." help narrow down where the last mines go? There cannot be any mines with one neighbouring mine, except for the given flagged mines. $\endgroup$
    – Jaap Scherphuis
    Commented Mar 6 at 17:13
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    $\begingroup$ From what I can tell, your solution is very close. Remember ALL cells with a 1 are shown and ALL possible grey flags are shown. $\endgroup$
    – Truej
    Commented Mar 6 at 17:20
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    $\begingroup$ @JaapScherphuis Thanks. Now I can complete the solution. $\endgroup$
    – Alex Ravsky
    Commented Mar 6 at 17:38
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    $\begingroup$ @Thanks. I completed the solution. $\endgroup$
    – Alex Ravsky
    Commented Mar 6 at 17:53

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