Protect against too small numbers

commands/games-sp/minesweeper.js

@@ -48,7 +48,7 @@ module.exports = class MinesweeperCommand extends Command {
 					if (!coordPicked) return false;
 					const x = Number.parseInt(coordPicked[1], 10);
 					const y = Number.parseInt(coordPicked[2], 10);
-					if (x > size || y > size) return false;
+					if (x > size || y > size || x < 1 || y < 1) return false;
 					if (game.mask[y - 1][x - 1]) return false;
 					return true;
 				};