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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 26,397 6,532 4.04
    2nd Fibonacci 19,095 3,816 5.00
    3rd Quine 11,304 1,490 7.59
    4th Divisors 10,804 2,792 3.87
    5th Prime Numbers 10,664 2,349 4.54
    6th Evil Numbers 10,014 2,411 4.15
    7th Leap Years 9,497 2,114 4.49
    8th Abundant Numbers 8,527 2,058 4.14
    9th Niven Numbers 8,246 1,663 4.96
    10th Odious Numbers 8,113 1,746 4.65
    11th π 8,005 1,159 6.91
    12th 12 Days of Christmas 7,895 2,321 3.40
    13th 99 Bottles of Beer 7,683 2,410 3.19
    14th Collatz 7,028 1,431 4.91
    15th Foo Fizz Buzz Bar 6,773 1,581 4.28
    16th 𝑒 6,711 781 8.59
    17th Pernicious Numbers 6,572 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 6,036 1,567 3.85
    21st Tutorial 5,972 625 9.56
    22nd Pascal’s Triangle 5,944 1,251 4.75
    23rd Prime Numbers (Long) 5,890 996 5.91
    24th √2 5,631 841 6.70
    25th Evil Numbers (Long) 5,493 997 5.51
    26th Abundant Numbers (Long) 5,241 972 5.39
    27th Pangram Grep 5,169 1,072 4.82
    28th Odious Numbers (Long) 4,999 808 6.19
    29th Niven Numbers (Long) 4,947 796 6.21
    30th λ 4,878 439 11.11
    31st φ 4,860 627 7.75
    32nd Diamonds 4,835 1,076 4.49
    33rd Tongue-twisters 4,686 877 5.34
    34th τ 4,544 588 7.73
    35th ASCII Table 4,457 905 4.92
    36th Sierpiński Triangle 4,095 725 5.65
    37th Happy Numbers (Long) 4,066 635 6.40
    38th Look and Say 4,052 733 5.53
    39th Arithmetic Numbers 4,015 769 5.22
    40th Recamán 3,989 687 5.81
    41st Catalan Numbers 3,946 619 6.37
    42nd Fractions 3,795 969 3.92
    43rd Kolakoski Sequence 3,757 514 7.31
    44th Arabic to Roman 3,725 1,017 3.66
    45th Ordinal Numbers 3,707 901 4.11
    46th Leyland Numbers 3,705 637 5.82
    47th Pernicious Numbers (Long) 3,615 476 7.59
    48th Van Eck Sequence 3,593 557 6.45
    49th ln 2 3,452 382 9.04
    50th Number Spiral 3,430 497 6.90
    51st Emirp Numbers (Long) 3,411 551 6.19
    52nd Kolakoski Constant 3,391 315 10.77
    53rd Catalan’s Constant 3,370 373 9.03
    54th Cubes 3,328 665 5.00
    55th γ 3,306 251 13.17
    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 3,065 420 7.30
    60th Smith Numbers 3,028 417 7.26
    61st Farey Sequence 2,957 356 8.31
    62nd Vampire Numbers 2,951 473 6.24
    63rd Roman to Arabic 2,903 642 4.52
    64th Seven Segment 2,893 795 3.64
    65th Day of Week 2,866 634 4.52
    66th Ascending Primes 2,860 428 6.68
    67th Factorial Factorisation 2,842 350 8.12
    68th brainfuck 2,809 791 3.55
    69th United States 2,776 745 3.73
    70th Rijndael S-box 2,709 307 8.82
    71st Intersection 2,592 640 4.05
    72nd Emojify 2,580 689 3.74
    73rd Arrows 2,539 651 3.90
    74th CSS Colors 2,510 615 4.08
    75th Reverse Polish Notation 2,310 506 4.57
    76th Gijswijt’s Sequence 2,295 250 9.18
    77th Levenshtein Distance 2,284 406 5.63
    78th Rock-paper-scissors-Spock-lizard 2,202 571 3.86
    79th Tower of Hanoi 2,170 149 14.56
    80th Partition Numbers 2,114 212 9.97
    81st 24 Game 2,108 275 7.67
    82nd Spelling Numbers 2,100 529 3.97
    83rd N Queens 2,028 222 9.14
    84th Kaprekar Numbers 1,969 216 9.12
    85th Morse Encoder 1,960 542 3.62
    86th ROT13 1,935 379 5.11
    87th Mandelbrot 1,854 187 9.91
    88th Trinomial Triangle 1,806 202 8.94
    89th Morse Decoder 1,743 473 3.68
    90th Card Number Validation 1,699 382 4.45
    91st Transpose Sentence 1,695 346 4.90
    92nd Polyominoes 1,673 159 10.52
    93rd Forsyth–Edwards Notation 1,660 327 5.08
    94th Game of Life 1,651 375 4.40
    95th Hexdump 1,639 351 4.67
    96th Lucky Tickets 1,639 264 6.21
    97th Hilbert Curve 1,459 143 10.20
    98th PalindromemordnilaP 1,419 294 4.83
    99th Jacobi Symbol 1,404 255 5.51
    100th Zeckendorf Representation 1,387 227 6.11
    101st Tic-tac-toe 1,349 265 5.09
    102nd Time Distance 1,346 327 4.12
    103rd Zodiac Signs 1,255 223 5.63
    104th Medal Tally 1,188 256 4.64
    105th Musical Chords 1,184 178 6.65
    106th Scrambled Sort 1,184 234 5.06
    107th Ten-pin Bowling 1,164 210 5.54
    108th Proximity Grid 1,162 203 5.72
    109th Star Wars Opening Crawl 1,136 253 4.49
    110th Maze 1,135 228 4.98
    111th Sudoku 1,103 282 3.91
    112th Poker 1,101 258 4.27
    113th Repeating Decimals 1,072 245 4.38
    114th DFA Simulator 1,003 204 4.92
    115th Sudoku (Fill-in) 966 201 4.81
    116th QR Decoder 924 178 5.19
    117th Set 923 178 5.19
    118th Billiards 920 170 5.41
    119th Reversi 880 146 6.03
    120th SI Units 868 151 5.75
    121st Semiprime Numbers 732 46 15.91
    122nd Minesweeper 726 154 4.71
    123rd Sphenic Numbers 715 43 16.63
    124th Topological Sort 684 146 4.68
    125th Star Wars GPT 682 154 4.43
    126th Highly Composite Numbers 627 33 19.00
    127th Mahjong 600 113 5.31
    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 Ellipse Perimeters 216 42 5.14
    136th Smooth Numbers 202 19 10.63
    137th Calendar 201 71 2.83
    138th Continued Fractions 179 30 5.97
    139th Flags 162 15 10.80
    140th Floyd-Steinberg Dithering 134 12 11.17
    141st CSS Colors (Inverse) 76 19 4.00
    142nd Snake 71 26 2.73
    143rd Multitap Input 67 20 3.35
    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