How to enter the prize puzzles

A £25 electronic book token will be awarded to the sender of the first correct solution opened from all entries received to each puzzle. Prizes will be sent electronically to the email address you give on the entry coupon or that you include in your email.

To enter: scan or take a photograph of your filled-in grid and coupon, and send by email, along with your postal address, to prize.puzzles@telegraph.co.uk with Sunday Cryptic 3101 or Sunday GK 1478 or EV 1480 or

Griddler 1588 in the subject field. Please send separate emails if you are entering more than one competiton.

Closing date: 9am on Wednesday, April 7.

Solutions and winners in two weeks. Please allow up to six weeks for the delivery of your prize.