The spreadsheet for strategic voting against the Tories is now a website

A widely-shared spreadsheet which encourages people to vote tactically in order to deny the Conservatives a victory in the general election has been made into a mobile-first website.

Last week the Google doc, started by 28-year-old Becky Snowden in West Yorkshire, was circulated widely around social networks.

She told indy100:

The theory is easy. Find a Tory swing seat and get people to vote for whoever is most likely to beat them. And for some constituencies it was genuinely that simple. For others, the Tory safe seats, it isn’t clear at this time who the best competitor is. Most of the data is based on previous election results in 2015, 2010 and by-elections.

I have also had overwhelming support from people offering local knowledge. I try to take this into account where I can.

The most difficult to call areas I have tried to indicate that people will have to pick those for themselves. I’ve also tried to indicate which seats are safe 'non-Tory' so people can make up their own minds on those.

Becky has since, with collaborators, set up a mobile friendly website, to make the experience easier.

You simply enter your location, or allow the website to track it, and it'll tell you what it deems as your best tactical vote against the Conservatives.

There's now a hashtag where people are rallying support, #tactical2017:

Becky told indy100:

There are a few of us who have teamed up to make the site and also a group who are working on promoting it.

It's definitely a growing movement, more and more people hear about it each day and with the support of volunteers we are able to make the message easier to spread - hence creating a mobile friendly site.

Although Liberal Democrat leader Tim Farron previously said he would go into coalition with the Conservatives, he has now ruled out a coalition with both the Tories and the Labour party.

He told the Observer:

There is no way we can countenance any kind of arrangement or coalition with the Conservative party and likewise with the Labour party led by Jeremy Corbyn.

He [Corbyn] accepted hard Brexit, he voted for it. He enabled it. It has put us in the situation we are now in.

More: People are sharing this spreadsheet of how to vote tactically