There were a reported 520,000 entries, with 120,000 unique participants from at least 140 countries involved in a marathon of chess, 

It ran for 720 hours non-stop.

There were 2,762 tournaments taking place within the event.

Many of the world's greatest players were involved in the competitions, with 20 per cent of all grandmasters and 10 per cent of all FIDE titled players participating.

These included Ding Liren, Anish Giri, David Navara, Wang Hao and Peter Svidler, plus four women's world champions - Hou Yifan, Alexandra Kosteniuk, Antoaneta Stefanova and Tan Zhongyi.

FIDE President Arkady Dvorkovich invited national chess federations to spread a message of unity and actively engage in the initiative. 

More than 60 responded by organising their own tournaments to be included in the project.

Some staged more than 25 tournaments each, including school championships and national team events.

The main prize winners will be invited to the Moscow 2021 Olympiad and include an amateur chess player from Serbia who goes by the moniker of "HisEloquency".

"I didn't even consider I would get drawn for a major prize, so I was very surprised, to say the least," they said.

"I double, triple and quadruple checked everything before I started phoning friends and family - it all felt unreal."

Winners ranged in age from 9 to 64 and hailed from at least 37 nations including Bangladesh, Italy, Sudan and Zimbabwe.

Over the next few months, grandmasters will also play mini matches with Checkmate Coronavirus winners and deliver masterclasses.