# [Python 2], <s>231</s> <s>222</s> <s>216</s> <s>202</s> 198 bytes

<!-- language-all: lang-python -->

    from random import*
    from datetime import*
    t=date.today()
    d=[(((`x`,"[ ]")[x<t.day],"[@]")[x==t.day],`x`)[t.month<12and t.day<26]for x in sample(range(1,26),25)]
    while d:print' '.join(d[0:5]);d=d[5:]

[Try it online!][TIO-k46tj99z]

[Python 2]: https://docs.python.org/2/
[TIO-k46tj99z]: https://tio.run/##PY5LCoMwGIT3niK4MSkSakAX1kDvEQIGEmuKeZD@UD19mkrpaphvBmbiAWvwLOclBYeS8rqIdTEkuFQn0woMWGf@FPgXUQhaHZhUmguM8bzPbS2QrInYJ6AlksXfT8/5D5QSEUBd8LBOHStj6EwmNsglJLQj69FLubgZXK48DO5aNpCW9URW79VuBukxJuuhQQ19BuuxFtexl@SmuRb9KHP@AA "Python 2 – Try It Online"