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

    m-tkach 🇺🇦

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    117 / 123 Holes

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    44 / 62 Langs

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    58 / 99 Cheevos

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    1 Hole Authored

    1 Referral

    Card Number Validation in SQL in Chars Play Hole

    2nd in SQL and 140th overall.

    Last tested .

    Runtime of .

    Bytes Chars Submitted
    87 87
    89 89
    90 90
    91 91
    93 93
    101 101
    102 102
    104 104
    108 108
    117 117
    132 132
    163 163
    164 164