This is an unusual style dartboard called the "Wide Fives", for obvious reasons! Only numbers divisible by 5 are on the board.

This dartboard was originally manufactured by NODOR, but is no longer in production.

One game played on the board was 51-by-Fives, which has been adapted to play on a standard English Clockface Dartboard.

The game is fairly simple; the winner is the player to reach exactly 51 points first, starting from zero. BUT, the actual score thrown is divided by 5 to get the scoring amount. In other words, a thrown score of 20, divided by 5, would actually score 4 points on the chalkboard.

Play proceeds like this until 51 is reached. Like '01 games, it is possible to bust.. if you have a score of 50, for instance, and throw 20 points, your new score would be 54... a bust. Go back to 50 next turn!

When 51-by-Fives is played on an English Clockface Board, all 3 darts must score each turn, or none may count. This keeps someone from throwing-away the last dart to avoid a bust. Also, all 3 darts thrown must add up to a number divisible by 5, or none count that turn.