Fox and Geese vs Computer

Play the fox or the geese against the computer — three levels, earn ranking points.

How to play Fox and Geese

Fox and Geese is one of Europe’s oldest board games — an asymmetric “hunt game” in which the two sides have completely different pieces, powers and goals. It belongs to the medieval tafl family of unequal-forces games played across Scandinavia, and a version called Halatafl (“the fox game”) is mentioned in Icelandic sagas as early as the 14th century. The game later spread through the whole of Europe, turning up in royal household accounts and remaining a favourite fireside game for centuries. One player controls a single red fox; the other marshals a flock of thirteen amber geese. The fox tries to eat geese by jumping over them; the geese cannot capture at all and instead try to crowd the fox into a corner until it cannot move a single step. Play a friend on the same screen, or take either side against the computer at three difficulty levels and earn ranking points for every win.

The goal

The two sides have opposite goals. The geese win by immobilising the fox: if, on the fox’s turn, it has no legal step and no legal jump anywhere, the hunt is over and the flock triumphs. The fox wins by eating geese until fewer than seven remain — six geese or fewer can no longer form the wall needed to trap it, so the game ends immediately at that point.

The board

The game is played on the traditional 33-point cross board — the same footprint as peg solitaire. Pieces stand on the points and move along the drawn lines. Every point is joined to its horizontal and vertical neighbours, and the classic diagonals connect every second point, so some points have up to eight exits while others have only four or fewer. Watch the line network carefully: a move — and just as importantly a jump — is only ever allowed along a drawn line.

Setup

The thirteen geese begin packed on one side of the cross: the entire bottom arm plus the complete seven-point row just below the centre. The fox starts alone on the centre point, surrounded but defiant. In this version the fox moves first, and the sides then alternate one move per turn.

Rules of play

  • The fox and the geese alternate turns, one move each; the fox begins.
  • A goose moves one point along a line to an empty neighbouring point, forward (toward the far arm) or sideways — never backward, neither straight nor diagonally. Geese can never capture anything.
  • The fox moves one point along a line in any direction — forward, backward, sideways or along a diagonal — to an empty neighbouring point.
  • The fox captures by jumping: if a goose stands on an adjacent point along a line and the point directly beyond it on that same line is empty, the fox leaps over the goose to the empty point and the goose is removed from the board.
  • Jumps chain: if another jump is available from the landing point, the fox may keep jumping in the same turn — one long move can eat two, three or more geese.
  • Captures are never compulsory. The fox may ignore an available jump, and may stop a jump chain after any hop. (Some traditional variants force the fox to jump — this version does not.)

How the game ends

The geese win the moment the fox, on its turn, has no legal move: every neighbouring point along a line is occupied and every potential jump is blocked by a piece on the landing point. The fox wins as soon as the flock is reduced to six geese, because six can no longer build a trap. One extra rule keeps the game well-defined: if the geese themselves ever have no legal move on their turn — every forward and sideways path blocked — the fox wins. The counters above the board always show how many geese survive and how many the fox has eaten.

Playing the computer (ranked)

In “Fox and Geese vs Computer” you pick your side — fox or geese — and one of three levels before the game starts. Easy makes deliberate mistakes so newcomers can win with either side. Normal looks ahead and punishes careless moves. Expert searches deeper: as the fox it hunts down double jumps, and as the geese it keeps the wall tight and rarely offers a free bird. The computer thinks entirely on your device, so the game works offline. Beat it to earn ranking points — Easy +10, Normal +30, Expert +100 — and sign in to put your best result on the leaderboard.

Strategy tips

  • Geese: advance as an unbroken wall. Geese are strong shoulder to shoulder — move the flock up rank by rank and never let a lone goose stand one step ahead of its neighbours where the fox can pick it off.
  • Geese: never expose a goose with an empty point behind it. Before each move, check every line through the fox; if your move places a goose beside the fox — or empties the point behind such a goose — it will be eaten. Geese cannot retreat, so every mistake is permanent.
  • Geese: herd the fox toward an arm or a corner. You do not need to chase it, only to shrink its space — push the wall forward so the fox’s free area gets smaller every few moves, and seal the diagonal lines last, because those are its favourite escape routes.
  • Fox: stay mobile and central for as long as possible. The centre of the cross has the most lines; a fox pinned in an arm early has half lost already. Step backward freely — the geese can never follow you back.
  • Fox: do not grab every goose. A tempting single jump can pull you into a pocket that the flock then seals shut. Count the reply to every capture — it is the double and triple chains, and the jumps that break the front wall, that really win the hunt.
  • Fox: attack the hinges of the wall. The geese are weakest at the moment a rank moves — watch for a goose stepping forward alone or a gap opening behind the line, then dart through. Every goose eaten makes the remaining net easier to tear.

Frequently asked questions

Why can’t my goose move backward?

That is the defining rule of the 13-geese variant played here: geese may step forward or sideways along a line, but never back toward their own arm — neither straight nor diagonally. It makes every goose move a commitment, which is exactly what gives the game its tension. The fox, by contrast, may move in any direction.

Is the fox forced to jump? Can it capture several geese at once?

Jumps are never forced in this version — the fox may decline a capture, and may stop a chain after any hop. And yes, jumps chain: if another goose with an empty point beyond it lies on a line from the landing square, the fox may keep jumping in the same move. The board highlights every reachable landing point, including the intermediate stops of a chain.

Which side is easier to play?

The fox is usually easier for beginners — a single piece, clear tactics, and it punishes every goose mistake immediately. Well-played geese are at least the equal of the fox, but they demand patience: one careless goose can undo twenty good moves. Try the geese against the Easy computer first, and swap sides regularly to learn both halves of the game.

How do I earn ranking points, and does the game work offline?

Win a game of “Fox and Geese vs Computer” at any level, with either side: Easy is worth 10 ranking points, Normal 30 and Expert 100. Sign in and your best score per difficulty appears on the leaderboard. Both the two-player and the vs-computer games run entirely in your browser once the page has loaded, so they work offline — ranked wins earned offline are stored on your device and upload automatically the next time you are online and signed in.