Everyone has a scorecard with four coloured lanes. Red and Yellow count up from 2 to 12. Green and Blue count down from 12 to 2. Each lane ends with a finish flag. You score for every number you cross off, and more crosses in one lane score much more.
There are six dice: two white dice and one each in red, yellow, green and blue. When a lane closes, its coloured die leaves the race.
Players take turns being the roller. The roller rolls every die still in the race. Then there are two steps:
If the roller crosses nothing in either step, they spin out: −5 points. Players who aren't rolling never spin out.
The race ends straight away when two lanes are closed, or when anyone takes their 4th spin-out.
Each lane scores by how many crosses it has (the flag counts as one):
Add your four lanes and subtract 5 for each spin-out. The highest total wins.
In 600-game test series with 2 players (seats alternating), Hard beat Normal 67% of the time and Easy 82%, and Normal beat Easy 77%. Dice are dice: even Easy wins now and then.