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Kolmogorov complexity, informally, is the amount of code it takes to describe or produce a constant object, such as a string or image. When posting a challenge in this category, please make sure it adds something new to existing challenges.

5 votes
Accepted

Print the SARS-Cov-2 (COVID-19) genome

Sledgehammer, dev branch, 136 + 1 + 7196 = 7333 bytes The dev branch is both more buggy and less buggy than the normal branch. At least # and variables work properly in it. No built-in compression (ex …
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23 votes

Print the SARS-Cov-2 (COVID-19) genome

bash + flif-tools, 40+1+7359 = 7400 bytes First, I noticed that the probabilities of various letters weren't evenly distributed, and I thought I should use some kind of arithmetic coding. Then I reali …
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2 votes

Logo Pack LAPACK

Retina, 62 bytes This is way too long. The markdown parser breaks terribly if I use the TIO's post snippet generator, so there's an extra leading newline in the snippet below: there is actually only 1 …
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0 votes

Simple complexity

C# (.NET Core), 976 969 bytes o=>{foreach(var l in new[]{35223185965568,52841249260288,0xf00c0c277f00,0x9004043ee900,0x977c7c200900,0xfee4e4300f00,0xc22727f00c00,73934616658944,0xc2000020097c,73667 …
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5 votes

There are known knowns

C# (.NET Core), 54 bytes v=>@"z zs z unzs unz zs unz unzs".Replace("z","known") Try it online!
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1 vote

Confirm the Illuminati

C# (.NET Core), 144 bytes This one may seem quite boring, because it is quite boring. ()=>@" ^ /_\ /z\ /z|_\ /_|/o\|_\ /z\_/z\ /z|z|z\ /z|z|z|_\ /z|z|z|z …
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6 votes

First Number to Contain Each Letter

Wolfram Language (Mathematica), 50 bytes Letters b, c, m, p and q are skipped for performance reasons when testing on TIO. (i=0;While[1>StringCount[IntegerName@i,#],i++];i)& Try it online!
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2 votes

First Number to Contain Each Letter

Sledgehammer, 17 bytes Technically, this is 133 bits long, but that doesn't really make this 16.625 bytes, as the compressor claims. ⣜⢍⢞⢹⡱⡋⣽⡱⡆⢺⢦⡽⡐⡌⢗⠈⣵ This probably decodes to x1 = Input[]; x2 = …
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3 votes

Rod of Asclepius

Bubblegum, 202 bytes Uses the file with all unnecessary leading and trailing whitespace removed. Since the code is a raw DEFLATE stream, here's a hex dump (not that it helps significantly): 00000000 …
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3 votes

Rod of Asclepius

Jelly, 186 175 174 bytes “ç⁺lñỊɓ¡ḌỌKḃßƇ[Æ÷ịœi#⁵Q#^Fo$Q$'ẠKẏȤ⁴ịɲɦʋỌ⁷ḄLqẏ⁺nÄẉ⁾ṀⱮsọḢɲlọȮḄṡ-$ɓv?KggjḞƭCid/ Ȥx?ßɓṇȯ¢ḋ®ṖIQṁ"œıṚ/£;ẉ*ȧ%¹ȯḷŻṖ4eS⁸w÷ƭʋịṢḤUKGɦðþḥ³-_?ߧlÇĠⱮkĠƝẎ3UỌYBTẋŒØL®œƇỊ⁼Ẓd’b37⁶”L2ƭx$€Fs69Y …
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7 votes

Print a tongue twister!

Bubblegum, 79 78 bytes removed trailing newline for -1 byte The text in the tongue twister has many simple patterns. There are enough of them that even "normal" languages can save bytes. However, the …
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2 votes

Bloons TD 6 Upgrade Paths

Python 3, 75 bytes print([r for r in[(x//36,x//6%6,x%6)for x in range(216)]if[0,3]>sorted(r)]) Try it online!
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1 vote

Print X without X (robber's thread)

Befunge-98 (PyFunge), 37 bytes, cracks pppery's answer This code is terrible. "NRTS"4(0"<"1+D0"r"1+D0"o"1+D0"+"1+D@ Try it online!
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6 votes

Print X without X (cop's thread)

Javascript, score: 83, cracked? (the crack is not executable like /path/to/interpreter file.js, unlike my solution, but I don't think that matters a lot) I only know one Javascript implementation wher …
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2 votes

Print X without X (robber's thread)

Wolfram Language (Mathematica), 1422 bytes, cracks att's answer this question is named incorrectly, we're actually the cops, trying to prevent all those evil newcomers from posting challenges we don't …
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