Cody Problem 51541 asked solvers to guess the card in Fitch Cheney's five-card trick. This problem is the counterpart: Write a function that takes five cards, selects four of them, and puts them in order to pass to the partner. See the previous problem for the rules. If the input string is '5C 7C 6S 4H 3D', the output string should be '5C 3D 6S 4H'. Some hands will have multiple possible answers. Your function needs only to provide one of them.
The motivation for this problem arose when EmilyR and I tried to dazzle JessicaR with card wizardry, and I misordered the four cards—twice.
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Last Solution submitted on Jul 15, 2026

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William Chris Cleveland George Berken David Hill

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