Bukkit

How to set a zone

1. Build the zone. It's recomended to start removing a chunk(not Minecraft one, I mean a square of ground of undefined size) of ground, until you have a pit with a depth of 2 blocks, and then doing whatever you want there, like a mountain in middle(or nothing xd).

   So I've made this...

   

   And then built this!

   

   (inside)

2. Now, you can create the zone with /md zone create <name> where name is the name you want to give to the zone.
3. Now, set the protective zone using /md zone protection set (pos1|pos2) <zone>. The method is: you look at the first corner, you do the command with pos1; you look at the second corner, you do the command with pos2. When this is setted, it works like a WorldGuard protection, where you can't exit, enter, place or break blocks(you will be still able to break the top layer in search of mines, and place torches for mark mines). Remember this when setting the zone.

   See the cyan wool blocks? You just look at one, do the command with pos1. Then you look into the another wool block, and do the command with pos2. That's it!

4. Remember that pit we had done in the first step? Well, in the second block layer of that pit, make the mine zone with /md zone minezone set (pos1|pos2) <zone>. The method to do this is the same as with the protective zone. This zone Here, the mines will be generated, and a top layer will be generated each game. The top layer layer is the one that the players will dig in search of mines, while the bottom one is the one where the mines and the hints(in original Minesweeper, these pretty numbers that show you near mines) are generated.

   See the two red wool blocks? You do the same as with the protection, but you use minezone instead of protection!

5. Done! Now your players can play by doing /md join <your zone name>. For play: break a block for reveal it; place a torch over it for mark it as mine, preventing you from break it.

   The wools at my inventory are, from left to right, the hints(first is 0).