Full steam ahead for Train Tracks

With just two days until the launch of our new weekday Puzzles & Prizes pullout, quiz queen Carol Vorderman shows you how to tackle another of our fiendish new games...

We’Re counting down to the launch on Saturday of the Mail’s new daily Puzzles & Prizes pullout.

To celebrate, each day this week we are introducing one of our fabulous new brain teasers.

Britain’s best-known puzzle addict Carol Vorderman is here to share her tips to unlock all their secrets. Today, we put Train Tracks under the spotlight.

Not only is our fantastic Puzzles & Prizes pullout bigger and brighter, but there is also £3,000 to be won every week.

You can find yet more games in the interactive version of the paper, Mail Plus, available for tablets and smartphones at www.

mailsubscriptions.co.uk — visit the website to find out more.

Full steam ahead!