Your pieces. Your opening.

Spend 39 points. Build an army nobody has studied.

It plays like chess because it is chess. The difference is that you choose the pieces, place them on your half of the board, and reveal both armies only when the game begins.

  • No account
  • No download
  • First move in seconds
Play a ready army Build my own

Free forever. Play against the AI directly in this browser.

Choose your experiment

Which army wins?

39 / 39

You play One big piece vs the classic army — 39 points a side.

Play this matchup

Start here

Your first game is three decisions away.

No theory to learn first. If you know how the chess pieces move, you are ready.

  1. 01

    Spend exactly 39

    A normal chess army also costs 39 points, so both sides begin with equal resources.

  2. 02

    Place your pieces

    Use your half of the board. Build a fortress, a cavalry attack, or one enormous threat.

  3. 03

    Reveal and play

    The rules are chess. The position is new. Your judgement matters before move one.

Build my 39-point army See the two-minute explanation →

Three new pieces

Nothing strange to memorise.

Each new piece combines two moves you already know.

Maharajah chess piece
13 points

Maharajah

Queen + Knight

Chancellor chess piece
8 points

Chancellor

Rook + Knight

Archbishop chess piece
6 points

Archbishop

Bishop + Knight

Try a two-move Maharajah puzzle →

Play together

One room code. Two secret armies.

Create a room in the app and send the code to a friend. You both build in private; the board is revealed when both armies are locked in.

No account or email Server-checked moves Reconnect without losing the game
Get the free app
39equal points per side
5platforms, one game
208engine test games
2080top measured Elo

Watch

See it in a couple of minutes

Short walkthroughs of the app — the desktop build and the mobile build.

Desktop — Windows, macOS, Linux
Mobile — Android, iPhone & iPad

Take it with you

The same game on every screen.

Online with a friend, offline against the engine, or two players sharing one device. There is no paid tier and no advertising.

Get it onGoogle Play Download on theApp Store Windows, macOS and Linux →
Platform Notes Download
iPhone & iPad Universal iOS build. v0.3.2 App Store
macOS Mac desktop build. v0.3.2 App Store
Windows Windows desktop build. v0.3.2 Microsoft Store
Android Phones and tablets. v0.3.2 Google Play
Linux Universal x64 build.
Make the file executable to run — how. 		v0.3.2 AppImage
Source & Releases The engine inside the app, as source. v0.2.1 GitHub

Engine

How strong is the computer?

We measured it instead of guessing: 208 games against a known reference engine. Level 1 lands around 1100 Elo for beginners, level 5 around 2080. Levels 1–4 play identically on a cheap phone and a fast desktop — we checked that too.

See the numbers

More

Everything else