Code Crossing

Code Crossing is the classic color-code logic puzzle, rebuilt for a quiet
daily ritual on Android. A hidden code of four colors waits behind the
slots. You pick four colors and submit. The app responds with a row of
feedback dots — a yellow dot for a color in the right spot, a green dot for
a color in the wrong spot, nothing at all for a color that isn't in the
code. From those dots, you deduce. The first guess is a shot in the dark.
The second guess is sharper. The fifth guess, if you are reading the dots
well, is often the win.

The Career trail is a neon-glowing path climbing through a deep-blue
starfield from your first easy level all the way to the expert finale a
hundred steps up. Early levels open with four colors and three slots and
twelve attempts — gentle ground for learning the rhythm. The middle stretch
settles into the classic six colors, four slots, ten attempts. The hard
climb adds an eighth color. The final climb stretches to five slots. Every
tenth level is a Boss level with a special twist: a code with two
consecutive same-color slots, a time-limited window, a code that uses only
three of the six colors, a level where hints are disabled. Each level scores
you one, two, or three stars based on how quickly you cracked it.

Daily Challenge is a single global code shared by everyone, every day. Solve
it and your result shares as an emoji grid for friends to compare. Endless
Mode is exactly what it sounds like — random codes, one after another, a
streak counter ticking up.

Stats shows your win rate, your average attempts, your longest streak, and a
small heatmap that paints itself in as you play through the year. Hints sit
in the corner — three a day, each one reveals one color or confirms one
slot. Five color themes unlock as you climb the trail: arcade, neon, candy,
deep sea, monochrome.

Code Crossing is built to be the cleanest color-code puzzle around. A
deep-blue arcade palette, bold yellow and lime accents, big bright pegs that
pop against the dark. Open the map and start the climb.