Thanks for all your feedback this past week! Here are some minor improvements I have made:

• Hold tab to copy your previous attempt
• Display end-game statistics
  
• Save and display your "best" solution
  
• Improve the pause/settings menu
  
• Add negative feedback when random letters are typed

If this game gets more attention, I have ideas for many more puzzles ahead! So if you like what you see, drop a comment and share the game to let me know! :)