Minecraft Redstone - Minesweeper Cell

Recorded this a while ago (AKA before pistons), but just now decided to release the video. The idea is to take the problems with the current "Minesweeper within Minecraft" games and fix them. The main issue I saw popping up was that, even if you didn't wire your mine field with enough TNT to blot out the sun, someone would still have to rebuild the entire thing after every game, and if you wanted to create a new map, you would have to hand place every single block at a new area in your Minecraft world.

My redstone version can be complete reset and rebuilt in the same plot of land, and the only pieces someone needs to worry about is the placement of the bombs; the redstone circuitry will fill in the numbers of the surrounding plots.

[pball]

could you explain the counter? more the and gates than anything else? :D