David J. Malan on Instagram: “CS50x Puzzle Day 2023 has begun in all time zones! Join anytime before 23:59 on Monday, April 3. Register at https:// cs50.ly/register. See…”
![CS50 on Twitter: "CS50x Puzzle Day 2019 has begun! Here are this year's puzzles. Visit https://t.co/DRuODdiTKq to register, to download a PDF, and to submit! Ends Monday, 1 April 2019. https://t.co/hgUzcu8rWV" / CS50 on Twitter: "CS50x Puzzle Day 2019 has begun! Here are this year's puzzles. Visit https://t.co/DRuODdiTKq to register, to download a PDF, and to submit! Ends Monday, 1 April 2019. https://t.co/hgUzcu8rWV" /](https://pbs.twimg.com/media/D2x1dBKXcAEoEs4.jpg)
CS50 on Twitter: "CS50x Puzzle Day 2019 has begun! Here are this year's puzzles. Visit https://t.co/DRuODdiTKq to register, to download a PDF, and to submit! Ends Monday, 1 April 2019. https://t.co/hgUzcu8rWV" /
![CS50 on Twitter: "CS50x Puzzle Day 2019 has begun! Here are this year's puzzles. Visit https://t.co/DRuODdiTKq to register, to download a PDF, and to submit! Ends Monday, 1 April 2019. https://t.co/hgUzcu8rWV" / CS50 on Twitter: "CS50x Puzzle Day 2019 has begun! Here are this year's puzzles. Visit https://t.co/DRuODdiTKq to register, to download a PDF, and to submit! Ends Monday, 1 April 2019. https://t.co/hgUzcu8rWV" /](https://pbs.twimg.com/media/D2x1WsUXQAAjShl.jpg)
CS50 on Twitter: "CS50x Puzzle Day 2019 has begun! Here are this year's puzzles. Visit https://t.co/DRuODdiTKq to register, to download a PDF, and to submit! Ends Monday, 1 April 2019. https://t.co/hgUzcu8rWV" /
![CS50 on Twitter: "This is CS50's past (and last!) #puzzle of the day for April 1. The answer is a single word in English. For more such puzzles, register for CS50x Puzzle CS50 on Twitter: "This is CS50's past (and last!) #puzzle of the day for April 1. The answer is a single word in English. For more such puzzles, register for CS50x Puzzle](https://pbs.twimg.com/media/EUho1GmXsAA-uyq.jpg)