The Nikoli Derby - 9th world championship

Entry to The Nikoli Derby was closed

We will announce the ranking of all participants on Wed. Dec 15th.

The Nikoli Derby was developed by nikoli as a party game. It has very simple rules that make it exciting and easy for all, from kids to much older players. The number of players can be from 10 to 5,000,000,000 so The Nikoli Derby is enjoyable at any party. nikoli holds this derby with readers and customers at any chance we get.

Please study which gates became winners in the last four derby races from the "Winner's gates of the past Nikoli Derby" page and think hard about how you can win.

We are going to hold the 9th Nikoli Derby World Championship. Please register from the entry form at the bottom of this page.

What you need to do

You are the owner of a racehorse, and there are two things you need to do to take part in the derby.

  1. Enter the name of your horse.

    Please think of a good name for your horse, between 2 and 24 letters.

  2. Choose a starting gate number.

    Pick your favorite number, from 1 to 50, as your starting gate.

That's all. But note: you can only enter one horse! Please read the "Note" below.

How the winners are ranked

The gate number is the key to winning the Nikoli Derby. The smallest gate number chosen by only one person is the winner. If two or more persons choose the same gate number they will lose the race. This means that you have to choose the smallest number that nobody else has chosen to win the race. What is the smallest number from 1 to 50?

Right, of course gate number 1 has the greatest advantage, but other horse owners know that too. If say, two or more horses are entered for each of gates 1 to 50, then the horse starting from gate 51 will win. Now, you have to guess the "smaller number" of those where you will be the only starting horse. The final ranking is ordered from smaller to larger numbers.

Entry deadline

Tue. Dec 7, 15:00(UTC)

Result announcement

Wed. Dec 15,

We will announce the ranking of all participants, by horse name and owner name. We will also announce the countries where the prizewinners come from and some of the comments we receive.


Duplicated entries from the same email or IP address are invalid. Only the last entry from one address will be considered the valid entry for that person.


Champion original T-shirt

2nd to 5th place

Nikoli puzzle book: "Puzzle Communication Nikoli" latest volume

Booby prize

Nikoli original pen case

Booby prize will be given to the horse finishing next to last. This means the booby horse has one horse at the back which runs whole distance. original T-shirtPuzzle Communication NikoliNikoli original pen case

Entry form

Acceptable letters and characters:

ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789@.+-_

Gate number Required

Please input a number between 1 and 50.

Horse name Required

Please make the horse name between 2 and 24 letters/characters long.

Horse owners nickname Required

Please make your owner nickname 2 to 24 characters long.

Your country Required

Please input the name of your country, 2 to 60 characters.

Email address Required
Do you want notification of the race result?
Message are planning to add 13th kind of puzzle to our members area. What kind of nikoli puzzle do you like?.

Maximum length, 500 characters.