Pen Fight operated by LetsCrak

What Is Pen Fight?

Last updated: 4 September 2026

Pen fight is a two-player game played on a school desk with two pens. The players sit opposite each other, put one pen each on the desk, and take turns flicking their own pen at the other. A pen knocked over the edge is out — and in the traditional stake, it belongs to whoever knocked it off. It needs no board, no dice and no equipment anybody does not already have in their bag.

There is a browser version of exactly this, with the desk and the physics done properly.

Play Pen Fight

Where it is played

Pen fight is a classroom game, best known across South Asia — India, Sri Lanka, Bangladesh and Pakistan — where it is played on the back benches of more or less every school, usually during a lesson and usually with one eye on the front of the room. Versions of the same idea turn up wherever there are desks and stationery: pencil fighting, in which two players take turns striking each other's pencil until one snaps, is the closest relative and is played widely outside the region.

There is no governing body and no printed rulebook, so the game exists as a set of conventions passed sideways between classes. What follows is the version almost everybody agrees on.

The rules, as played on a real desk

Two players sit on opposite sides of a desk, or side by side on the same bench.
Each puts one pen flat on the desk, in front of them.
Players alternate turns. On your turn you flick your own pen, once, with a finger.
The aim is to hit your rival's pen hard enough to send it over the edge of the desk.
A pen that leaves the desk is out. The last pen on the desk wins the round.
The stake, where it is played for stakes, is the pen itself.

That last line is the reason the game has any tension in it. A round of pen fight costs thirty seconds and, in principle, a pen — which is why nobody brings their good one, and why the argument about whether a pen that fell on a bag counts as fallen has been had in every school on earth.

The usual house rules

Every classroom adds its own, but these are the common ones:

One flick per turn. No follow-through, no second touch, no steering it once it has left your finger.
Own goals count. If your own pen slides off, you lose the round, whether or not anybody touched it.
Hanging pens. A pen partly over the edge but still on the desk is still in. It only goes out when it falls.
Caps on or off. A capped pen is heavier at one end and behaves differently. Most benches make both players agree before the first flick.
Books off the desk. An open notebook is a wall, and a wall changes the game entirely.

Why such a simple game holds up

Pen fight survives because it is a physics game wearing a stationery costume. There are only two things you control — how hard you flick, and where on the pen you push it — and both of them feed into a genuinely deep problem: every shot moves your own pen as much as your rival's, so an attack is always also a decision about where you would like to be standing afterwards.

The good players are not the ones who hit hardest. They are the ones who have noticed that a pen struck near its end leaves spinning, that a spinning pen travels sideways off a collision rather than straight, and that the middle of the desk is the only square from which nothing can be knocked off in one shot.

What the browser version keeps

Pen Fight is that game, built as a web page. The parts that carried across without changing:

The desk. A real school desk, 70 cm by 45 cm, with real edges to go over.
The flick. Drag back and release. Power is drag length, aim is drag direction, and where you grab the pen decides the spin.
The stake. Rounds are played for the pen, and the case fills up as you win.
The physics. Every pen is a rigid body in a real simulation. Length, mass, surface friction and bounce are measured off actual pens, so a capped pen really is top-heavy and a rubber-gripped one really does stop where it lands.

And the part that could not carry across: you cannot flick a pen at somebody sitting three thousand kilometres away, so the online game gives you a room code instead of a bench. Up to four people can sit at the same desk. See playing with friends.

Pen fight and pencil fighting are not the same game

In pen fight the goal is to knock the other pen off the desk; in pencil fighting the goal is to break the other pencil. Pencil fighting is a striking contest in which players take alternate hits at a held pencil until one snaps. Pen fight is a positional game on a flat surface — nothing breaks, and the edge of the desk does the eliminating.

Common questions

How many people can play pen fight?

Two is the classic game. Three or four works on a big enough desk and changes the character of it completely, because the player you knock off is not necessarily the player you are losing to. In the browser version, three and four-player desks are scored on marks rather than as a race.

What is pen fight called elsewhere?

Usually just "pen fight" or "pen fighting". Related desk and stationery games include pencil fighting and various flick-the-cap games, but the pen-off-the-desk version is generally called by its plain name.

Is there a way to play pen fight online?

Yes — this site. It runs in a browser with no download and no account, against eleven bot opponents or against friends in a room. The rules page covers the controls.

Two pens, one desk, whatever goes over the edge is yours.