About
Minesweeper is a logic puzzle genre where players clear a grid of tiles without detonating hidden mines, using numeric clues about the number of mines neighboring each safe tile. XBomb Cipher Day is a fork of XBomb, an X11 Minesweeper-alike for Unix originally written by Andrew M. Bishop starting in late 1994/early 1995 and distributed under the GPL. It adds hexagonal and triangular grid options alongside the traditional square grid, three grid sizes, a Cipher mode that encrypts the numeric clues, and a Day&Night mode with two interleaved cell types.
How it differs from the original
Beyond standard Minesweeper mechanics, this fork adds hexagonal and triangular grids, a Cipher mode that substitutes letters for the number clues, and a Day&Night mode where players must separately clear interleaved 'Day' and 'Night' cells using different mouse buttons; best-score tables are tracked separately for each grid shape and mode combination.
Getting started
Build with the included Makefile after editing the installation paths, or use the provided Ubuntu or NixOS build scripts; an X11 display is required to run it. Left-click uncovers a cell, right-click flags a suspected mine, and middle-click (or a matching same-type click in Day&Night mode) reveals a cell's neighbors once its clue is satisfied.
History
The original XBomb was written by Andrew M. Bishop starting in late 1994 or early 1995; XBomb Cipher Day is a fork that adds the Cipher and Day&Night modes on top of it.