The Royal Game of Ur

Goal

Move all seven of your pieces along the route and bear them off before your opponent.

How do I move a piece?

Race seven Lapis pieces along squares 1–14 and off. Lapis starts. Cast four binary dice, each contributing zero or one, then choose one movable piece. Waiting pieces count square 1 as their first step. Use the whole cast on one piece; do not split it. Click, tap, or use Tab and Enter.

When does a turn pass?

A zero passes automatically. A nonzero cast with no legal destination also passes. You can pass over occupied squares, but cannot land on your own piece.

What do rosettes do?

An exact landing on square 4, 8 or 14 gives another turn. The shared center rosette, square 8, also protects its occupant from capture. Choose another piece when an opponent blocks that destination.

Which squares are shared?

Squares 5–12 are shared. Landing exactly on an opposing piece there sends it back to waiting, except on protected square 8. Squares 1–4 and 13–14 are private; opposing pieces may occupy the same route number in those sections.

How do I finish the race?

Off is one step past square 14 and requires an exact cast. Overshooting is illegal. Finished pieces cannot return. The first player with all seven pieces off wins; there is no separate point score. This reconstruction offers a computer opponent or two people sharing a device. Difficulty affects assistance and computer choices, not route or dice rules.