The England & Wales Cricket Board has launched a cryptic image of famous and not-so-well known cricketing terms - "#WHATZAT" - which challenges fans to work out 50 clues.
From 'Ashes' through to 'Twelfth Man', the image doubles as an interactive game hosted on www.whatzat.co.uk with top prizes up for grabs.
By visiting the site and entering answers in the boxes provided, you can track your progress, share your answers and enter your score for the chance to win tickets to major international and county matches this season. Participants can also challenge friends and colleagues over Facebook or Twitter.
Solving just five of the cryptic clues hidden in the image online automatically enters fans into the draw to win one of five pairs of tickets to Friends Life t20 finals day at Edgbaston on Saturday August 17.
For those who rise to the challenge of answering all 50 terms correctly, there is the chance to win the hottest tickets in sport this summer - one of five pairs of Investec Ashes series tickets to see England and Australia battle it out.
Will Collinson, head of marketing at ECB, commented: “This season really promises to be 'Cricket's Summer'.
“The #whatzat image celebrates all that is fun, interesting and quirky about our great game, and will no doubt engage thousands of fans all over the country.”