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Welcome to 2023 everyone! Now that the Advent calendar has disappeared, it's time to reveal the answers and announce the winners. But first, some good news: with your help, the drones were all destroyed in time for Santa to deliver presents and Christmas was saved!

Now that the competition is over, the questions and all the answers can be found here. Before announcing the winners, I'm going to go through some of my favourite puzzles from the calendar and a couple of other interesting bits and pieces.

My first highlight is the puzzle from 1 December. I like this puzzle, because the lines of symmetry of a rectangle that you might expect—although it's not too hard to see what the lines of symmetry are, so this makes a nice gentle first puzzle.

My next hightlight is the puzzle from 11 December. I always enjoy a surprise appearance of the Fibonacci sequence.

My next highlight is the puzzle from 13 December. I love a good crossnumber, and had a lot of fun making this small one up. (If you enjoyed this one, you should check out the crossnumbers I write for Chalkdust.)

My final highlight is the puzzle from 24 December. You could solve this by doing a lot of expanding, but there's a neat shortcut that makes it almost trivial to solve.

Once you've entered 24 answers, the calendar checks these and tells you how many are correct. I logged the answers that were sent for checking and have looked at these to see which puzzles were the most and least commonly incorrect. The bar chart below shows the total number of incorrect attempts at each question.

You can see that the most difficult puzzles were those on 11, 18 and 19 December; and the easiest puzzle was on 8 December.

And finally (and maybe most importantly), on to the winners: 192 people managed to destroy all three drones. That's more people than last year:

From the correct answers, the following 10 winners were selected:

Congratulations! Your prizes will be on their way shortly.

The prizes this year include 2022 Advent calendar T-shirts. If you didn't win one, but would like one of these, I've made them available to buy at merch.mscroggs.co.uk alongside the T-shirts from previous years.

Additionally, well done to Aaron Johnson, Aaron Stiff, Aidan Dodgson, Alejandro Villarreal, Alek2ander, Alex Bolton, Alex Davis, Alex Hartz, Andrew Brady, Andrew Brodie, Andrew Ennaco, Andrew Roy, Andrew Turner, Artie Smith, Ashton Lewis, Austin Antoniou, Becky Russell, Ben Baker, Ben Boxall, Ben Reiniger, Ben Tozer, Ben Weiss, Beth Jensen, Blake, Brennan Dolson, Brian Carnes, Brian Wellington, Carl Westerlund, Carmen, Charleston W, Chris Eagle, Chris Hellings, Colin Beveridge, Colin Brockley, Connie, Corbin Groothuis, CreativeCrocheter, Dan Colestock, Dan DiMillo, Dan May, Dan Swenson, Dan Whitman, Daniel Cuneo, David and Ivy Walbert, David Ault, David Berardo, David Fox, David Kendel, David Mitchell, Deborah Tayler, Deborah Tayler, Derek Perrin, Dominik Niemand, Don Anderson, Dr Lizzie, Duncan Schaafsma, Dylan Richard, Eleanor, Elizabeth Blackwell, Elizabeth Madisetti, Emilie Heidenreich, Emily Troyer, Emma, Eoin Davey, Eric Kolbusz, Eric Scotti, Erik Eklund, Fionn Woodcock, Frances, Frank Kasell, Fred Verheul, Freddie Mao, Félix Breton, Gabriella Pinter, Gary M. Gerken, Gerry, Gert-Jan, Greg W., Gregory Loges, Greta, Han Whiteoak, Hannah Charman, Heerpal Sahota, Helen F, Herschel, Iris, Jack, Jacob, Jacob Loader, James Chapman, James Cunnane, Jarvis9, Jean-Noël Monette, Jean-Sébastien Turcotte, Jen Sparks, Jessica Marsh, Jim Ashworth, Jon Palin, Jonathan Chaffer, Jonathan Thiele, Jorge del Castillo Tierz, Joseph Gage, Joseph Wagner, Joshua Park, Karen Climis, Kevin Docherty, Kirsty Fish, Kristen Koenigs, Kyle Allen, Lazar Ilic, Lewis Dyer, Lise Andreasen, Louis, LycanFayn, Lyra, Magnus Eklund, Marco van der Park, Mark Stambaugh, Martin Harris, Martin Holtham, Mathryn, Matt Thomson, Mels, Merrilyn, Michael DeLyser, Mihai Zsisku, Mike L, Mike R, Millie, Mr J Winfield, Nadine Chaurand, Nancy Walker, Naomi Bowler, Naomi C, Nick Keith, Niji Ranger, Pamela Docherty, Patrick, Philip Corradi, Priyesh, Pup, Qaysed, Qaysed, Rashi, Ray Arndorfer, Reid, Reuben, Riccardo Lani, Rob Dixon, Robert Brady, Roger Lipsett, Roni Malek, Rosie Paterson, Russ Collins, Ruth Franklin, Sage Robinson, Sam Drei, Sarah Brook, Scott, Sean Henderson, Seth Cohen, shadorfff, Simon English, Stephen Cappella, Stephen Jasina, Sumaya Felic, Tamara Brenner, Tarim, The Connors of York, The Steelblade, Tom Fryers, Tony Mann, tripleboleo, Tyler St Clare, UsrBinPRL, Valentin VĂLCIU, Vinayak, Vinny R, vortex, Yasha, Yuliya N., and Zoran Morrissey-Ralevic. who all also completed the Advent calendar but were too unlucky to win prizes this time or chose to not enter the prize draw.

See you all next December, when the Advent calendar will return.