Chess/Random Extras Crossword

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Across
  1. 3. "Nobody calls castling a mechanic"
  2. 4. Defeated Stockfish in a 2018 match
  3. 7. 3000+ puzzles in 4 weeks???
  4. 8. Argentinian player who invented a common opening variation
  5. 10. IM Levy Rozman
  6. 12. Attended the Performative AZ Meetup
  7. 13. The RSI kid who's face is on Mount Rushmore
  8. 15. Nakamura's Ke2 speedrun
  9. 16. Can move in every direction on the board
  10. 17. 1. Nf3
  11. 19. Scored the famous 7 game win streak in the 2014 Sinquefield Cup
  12. 20. Idaho reaction Youtuber
  13. 21. The knight can travel to this many squares on the board
Down
  1. 1. Youngest World Champion
  2. 2. Sicilian defense with a gun!
  3. 5. Bzz...
  4. 6. "I'm soooo ugly!"
  5. 7. Brainrot numbers
  6. 9. "What the gurt?"
  7. 11. "Stalemate!!"
  8. 14. Commonly drawn endgame
  9. 18. "This is a rule?!"