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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 26,401 6,533 4.04
    2nd Fibonacci 19,107 3,818 5.00
    3rd Quine 11,308 1,491 7.58
    4th Divisors 10,812 2,793 3.87
    5th Prime Numbers 10,668 2,349 4.54
    6th Evil Numbers 10,022 2,412 4.16
    7th Leap Years 9,503 2,114 4.50
    8th Abundant Numbers 8,534 2,058 4.15
    9th Niven Numbers 8,252 1,664 4.96
    10th Odious Numbers 8,117 1,747 4.65
    11th π 8,011 1,160 6.91
    12th 12 Days of Christmas 7,901 2,321 3.40
    13th 99 Bottles of Beer 7,685 2,410 3.19
    14th Collatz 7,036 1,433 4.91
    15th Foo Fizz Buzz Bar 6,773 1,581 4.28
    16th 𝑒 6,711 781 8.59
    17th Pernicious Numbers 6,578 1,116 5.89
    18th Happy Numbers 6,266 1,281 4.89
    19th Emirp Numbers 6,256 1,417 4.41
    20th Christmas Trees 6,040 1,567 3.85
    21st Tutorial 5,976 626 9.55
    22nd Pascal’s Triangle 5,944 1,251 4.75
    23rd Prime Numbers (Long) 5,890 996 5.91
    24th √2 5,633 841 6.70
    25th Evil Numbers (Long) 5,493 997 5.51
    26th Abundant Numbers (Long) 5,248 972 5.40
    27th Pangram Grep 5,189 1,072 4.84
    28th Odious Numbers (Long) 5,001 808 6.19
    29th Niven Numbers (Long) 4,947 796 6.21
    30th λ 4,880 439 11.12
    31st φ 4,860 627 7.75
    32nd Diamonds 4,835 1,076 4.49
    33rd Tongue-twisters 4,690 877 5.35
    34th τ 4,544 588 7.73
    35th ASCII Table 4,459 905 4.93
    36th Sierpiński Triangle 4,095 725 5.65
    37th Happy Numbers (Long) 4,066 635 6.40
    38th Look and Say 4,056 734 5.53
    39th Arithmetic Numbers 4,019 769 5.23
    40th Recamán 3,989 687 5.81
    41st Catalan Numbers 3,952 620 6.37
    42nd Fractions 3,797 970 3.91
    43rd Kolakoski Sequence 3,761 514 7.32
    44th Arabic to Roman 3,727 1,018 3.66
    45th Ordinal Numbers 3,715 902 4.12
    46th Leyland Numbers 3,707 637 5.82
    47th Pernicious Numbers (Long) 3,617 476 7.60
    48th Van Eck Sequence 3,593 557 6.45
    49th ln 2 3,456 383 9.02
    50th Number Spiral 3,430 497 6.90
    51st Emirp Numbers (Long) 3,411 551 6.19
    52nd Kolakoski Constant 3,401 316 10.76
    53rd Catalan’s Constant 3,372 373 9.04
    54th Cubes 3,330 665 5.01
    55th γ 3,308 251 13.18
    56th Rule 110 3,244 562 5.77
    57th Inventory Sequence 3,242 388 8.36
    58th ISBN 3,123 676 4.62
    59th Lucky Numbers 3,067 421 7.29
    60th Smith Numbers 3,032 417 7.27
    61st Farey Sequence 2,957 356 8.31
    62nd Vampire Numbers 2,953 473 6.24
    63rd Roman to Arabic 2,903 642 4.52
    64th Seven Segment 2,893 795 3.64
    65th Day of Week 2,870 634 4.53
    66th Ascending Primes 2,864 428 6.69
    67th Factorial Factorisation 2,844 351 8.10
    68th brainfuck 2,809 791 3.55
    69th United States 2,776 745 3.73
    70th Rijndael S-box 2,711 307 8.83
    71st Intersection 2,594 640 4.05
    72nd Emojify 2,584 689 3.75
    73rd Arrows 2,541 651 3.90
    74th CSS Colors 2,510 615 4.08
    75th Reverse Polish Notation 2,312 506 4.57
    76th Gijswijt’s Sequence 2,295 250 9.18
    77th Levenshtein Distance 2,284 406 5.63
    78th Tower of Hanoi 2,208 153 14.43
    79th Rock-paper-scissors-Spock-lizard 2,202 571 3.86
    80th Partition Numbers 2,114 212 9.97
    81st 24 Game 2,112 275 7.68
    82nd Spelling Numbers 2,100 529 3.97
    83rd N Queens 2,030 222 9.14
    84th Kaprekar Numbers 1,969 216 9.12
    85th Morse Encoder 1,962 542 3.62
    86th ROT13 1,939 380 5.10
    87th Mandelbrot 1,856 187 9.93
    88th Trinomial Triangle 1,806 202 8.94
    89th Morse Decoder 1,743 473 3.68
    90th Transpose Sentence 1,703 348 4.89
    91st Card Number Validation 1,701 383 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 Hexdump 1,643 351 4.68
    96th Lucky Tickets 1,641 264 6.22
    97th Hilbert Curve 1,461 143 10.22
    98th PalindromemordnilaP 1,425 295 4.83
    99th Jacobi Symbol 1,406 255 5.51
    100th Zeckendorf Representation 1,387 227 6.11
    101st Tic-tac-toe 1,351 265 5.10
    102nd Time Distance 1,348 327 4.12
    103rd Zodiac Signs 1,259 223 5.65
    104th Medal Tally 1,188 256 4.64
    105th Scrambled Sort 1,186 234 5.07
    106th Musical Chords 1,184 178 6.65
    107th Proximity Grid 1,164 203 5.73
    108th Ten-pin Bowling 1,164 210 5.54
    109th Maze 1,139 228 5.00
    110th Star Wars Opening Crawl 1,136 253 4.49
    111th Poker 1,105 259 4.27
    112th Sudoku 1,103 282 3.91
    113th Repeating Decimals 1,074 245 4.38
    114th DFA Simulator 1,003 204 4.92
    115th Sudoku (Fill-in) 968 201 4.82
    116th Set 925 178 5.20
    117th Billiards 924 170 5.44
    118th QR Decoder 924 178 5.19
    119th Reversi 880 146 6.03
    120th SI Units 868 151 5.75
    121st Semiprime Numbers 734 46 15.96
    122nd Minesweeper 732 154 4.75
    123rd Sphenic Numbers 715 43 16.63
    124th Topological Sort 688 146 4.71
    125th Star Wars GPT 684 155 4.41
    126th Highly Composite Numbers 627 33 19.00
    127th Mahjong 602 113 5.33
    128th Hexagonal Spiral 581 24 24.21
    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 Polygon Triangulations 248 22 11.27
    135th Calendar 245 84 2.92
    136th Ellipse Perimeters 216 42 5.14
    137th Smooth Numbers 202 19 10.63
    138th Continued Fractions 183 31 5.90
    139th Flags 162 15 10.80
    140th Floyd-Steinberg Dithering 134 12 11.17
    141st CSS Colors (Inverse) 76 19 4.00
    142nd Snake 73 26 2.81
    143rd Multitap Input 71 20 3.55
    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