12 Days of Christmas
207th
Abundant Numbers (Long)
2,431st
Arrows
845th
884th
Calendar
2nd
Catalan Numbers
1,980th
Christmas Trees
2,833rd
528th
1,181st
714th
Diamonds
2,031st
Intersection
950th
Minesweeper
422nd
Morse Encoder
808th
Niven Numbers (Long)
2,165th
Number Spiral
1,166th
Polyominoes
777th
Prime Numbers
461st
Prime Numbers (Long)
2,728th
2,050th
Quine
649th
Seven Segment
343rd
Star Wars GPT
448th
429th
Star Wars Opening Crawl
156th
Sudoku (Fill-in)
519th
Ten-pin Bowling
618th
599th
Tic-tac-toe
511th
Tower of Hanoi
1,127th
Transpose Sentence
670th
Trinomial Triangle
237th
United States
434th
Vampire Numbers
717th
λ
66th
π
2,814th
1,075th
1,509th
2,339th