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    The Calendar hole will go live in approximately . Why not try and solve it ahead of time?

    # Hole Solutions Golfers Per Golfer Avg Time
    1st Fizz Buzz 26,415 6,535 4.04
    2nd Fibonacci 19,111 3,818 5.01
    3rd Quine 11,262 1,490 7.56
    4th Divisors 10,812 2,793 3.87
    5th Prime Numbers 10,682 2,352 4.54
    6th Evil Numbers 10,026 2,410 4.16
    7th Leap Years 9,503 2,115 4.49
    8th Abundant Numbers 8,542 2,060 4.15
    9th Niven Numbers 8,254 1,666 4.95
    10th Odious Numbers 8,107 1,742 4.65
    11th π 7,937 1,141 6.96
    12th 12 Days of Christmas 7,933 2,334 3.40
    13th 99 Bottles of Beer 7,693 2,412 3.19
    14th Collatz 6,988 1,429 4.89
    15th Foo Fizz Buzz Bar 6,771 1,581 4.28
    16th 𝑒 6,709 783 8.57
    17th Pernicious Numbers 6,566 1,113 5.90
    18th Happy Numbers 6,267 1,282 4.89
    19th Emirp Numbers 6,255 1,416 4.42
    20th Christmas Trees 6,038 1,567 3.85
    21st Tutorial 5,984 629 9.51
    22nd Pascal’s Triangle 5,934 1,249 4.75
    23rd Prime Numbers (Long) 5,896 997 5.91
    24th √2 5,602 832 6.73
    25th Evil Numbers (Long) 5,485 994 5.52
    26th Abundant Numbers (Long) 5,254 972 5.41
    27th Pangram Grep 5,183 1,072 4.83
    28th Odious Numbers (Long) 4,993 805 6.20
    29th Niven Numbers (Long) 4,955 797 6.22
    30th λ 4,898 442 11.08
    31st Diamonds 4,829 1,073 4.50
    32nd φ 4,820 620 7.77
    33rd Tongue-twisters 4,698 879 5.34
    34th τ 4,520 584 7.74
    35th ASCII Table 4,461 906 4.92
    36th Sierpiński Triangle 4,095 725 5.65
    37th Happy Numbers (Long) 4,075 636 6.41
    38th Look and Say 4,059 734 5.53
    39th Arithmetic Numbers 4,029 769 5.24
    40th Recamán 3,995 688 5.81
    41st Catalan Numbers 3,952 620 6.37
    42nd Fractions 3,801 970 3.92
    43rd Kolakoski Sequence 3,763 514 7.32
    44th Arabic to Roman 3,729 1,019 3.66
    45th Ordinal Numbers 3,715 902 4.12
    46th Leyland Numbers 3,709 639 5.80
    47th Pernicious Numbers (Long) 3,625 476 7.62
    48th Van Eck Sequence 3,594 557 6.45
    49th ln 2 3,450 384 8.98
    50th Number Spiral 3,434 498 6.90
    51st Emirp Numbers (Long) 3,418 551 6.20
    52nd Kolakoski Constant 3,399 317 10.72
    53rd Catalan’s Constant 3,370 373 9.03
    54th Cubes 3,330 666 5.00
    55th γ 3,314 253 13.10
    56th Inventory Sequence 3,246 389 8.34
    57th Rule 110 3,242 562 5.77
    58th ISBN 3,125 676 4.62
    59th Lucky Numbers 3,071 422 7.28
    60th Smith Numbers 3,036 417 7.28
    61st Farey Sequence 2,955 356 8.30
    62nd Vampire Numbers 2,952 473 6.24
    63rd Roman to Arabic 2,911 640 4.55
    64th Seven Segment 2,902 798 3.64
    65th Day of Week 2,878 636 4.53
    66th Ascending Primes 2,862 429 6.67
    67th Factorial Factorisation 2,854 352 8.11
    68th brainfuck 2,811 791 3.55
    69th United States 2,780 746 3.73
    70th Rijndael S-box 2,719 307 8.86
    71st Intersection 2,596 641 4.05
    72nd Emojify 2,592 691 3.75
    73rd Arrows 2,551 654 3.90
    74th CSS Colors 2,513 617 4.07
    75th Reverse Polish Notation 2,316 507 4.57
    76th Levenshtein Distance 2,292 407 5.63
    77th Gijswijt’s Sequence 2,289 249 9.19
    78th Tower of Hanoi 2,250 158 14.24
    79th Rock-paper-scissors-Spock-lizard 2,204 571 3.86
    80th Partition Numbers 2,122 213 9.96
    81st 24 Game 2,110 275 7.67
    82nd Spelling Numbers 2,102 529 3.97
    83rd N Queens 2,030 222 9.14
    84th Kaprekar Numbers 1,971 216 9.13
    85th Morse Encoder 1,968 544 3.62
    86th ROT13 1,941 380 5.11
    87th Mandelbrot 1,854 187 9.91
    88th Trinomial Triangle 1,808 203 8.91
    89th Morse Decoder 1,747 473 3.69
    90th Transpose Sentence 1,705 349 4.89
    91st Card Number Validation 1,702 383 4.44
    92nd Polyominoes 1,675 159 10.53
    93rd Forsyth–Edwards Notation 1,660 327 5.08
    94th Game of Life 1,655 375 4.41
    95th Lucky Tickets 1,645 264 6.23
    96th Hexdump 1,641 350 4.69
    97th Hilbert Curve 1,471 143 10.29
    98th PalindromemordnilaP 1,429 295 4.84
    99th Jacobi Symbol 1,406 255 5.51
    100th Zeckendorf Representation 1,393 227 6.14
    101st Tic-tac-toe 1,353 265 5.11
    102nd Time Distance 1,348 327 4.12
    103rd Zodiac Signs 1,261 223 5.65
    104th Medal Tally 1,190 257 4.63
    105th Musical Chords 1,186 178 6.66
    106th Scrambled Sort 1,186 234 5.07
    107th Proximity Grid 1,164 203 5.73
    108th Ten-pin Bowling 1,164 210 5.54
    109th Star Wars Opening Crawl 1,138 253 4.50
    110th Maze 1,137 228 4.99
    111th Poker 1,109 259 4.28
    112th Sudoku 1,105 282 3.92
    113th Repeating Decimals 1,074 245 4.38
    114th DFA Simulator 1,001 203 4.93
    115th Sudoku (Fill-in) 972 202 4.81
    116th QR Decoder 926 178 5.20
    117th Set 925 178 5.20
    118th Billiards 922 169 5.46
    119th Reversi 882 147 6.00
    120th SI Units 869 151 5.75
    121st Minesweeper 736 154 4.78
    122nd Semiprime Numbers 734 46 15.96
    123rd Sphenic Numbers 715 43 16.63
    124th Topological Sort 690 147 4.69
    125th Star Wars GPT 684 155 4.41
    126th Highly Composite Numbers 625 32 19.53
    127th Hexagonal Spiral 613 24 25.54
    128th Mahjong 606 115 5.27
    129th Odd Polyomino Tiling 539 12 44.92
    130th Apéry’s Constant 513 56 9.16
    131st Taxicab Numbers 463 35 13.23
    132nd Gray Code Encoder 448 54 8.30
    133rd Gray Code Decoder 383 53 7.23
    134th Calendar 281 94 2.99
    135th Polygon Triangulations 248 22 11.27
    136th Ellipse Perimeters 216 42 5.14
    137th Smooth Numbers 206 19 10.84
    138th Continued Fractions 183 31 5.90
    139th Flags 162 15 10.80
    140th Floyd-Steinberg Dithering 136 13 10.46
    141st CSS Colors (Inverse) 76 19 4.00
    142nd Multitap Input 75 21 3.57
    143rd Snake 73 26 2.81
    144th Connect Four 41 15 2.73
    145th p-adic Expansion 25 9 2.78
    146th Binary Lambda Calculus 24 7 3.43
    147th CSS Grid 18 7 2.57
    148th Turtle 17 9 1.89
    149th Quadratic Formula 12 5 2.40
    150th NFA Simulator 8 3 2.67
    151st QR Encoder 2 1 2.00