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Find two different latin squares of order $5$

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#combinatorics #latin-square
414
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Problem 2.2 from Jukna's "Extremal Combinatorics"

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#combinatorics #matrices #extremal-combinatorics #latin-square
179
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Let $L$ be a latin square whose entries are $L_{ij} = i+j (mod n)$. Then there are no $n$ distinct entries from unique rows and columns of $L$

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#combinatorics #latin-square
175
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Question from the British Mathematical Olympiad

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#contest-math #latin-square
345
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Orthogonal $4x4$ Latin Squares

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#combinatorics #discrete-mathematics #orthogonality #latin-square
200
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Latin square design for a social "mixer"

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#combinatorial-designs #latin-square
2.9k
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How many ways to colour a $4 \times 4$ grid using four colours subject to three constraints

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#combinatorics #puzzle #coloring #latin-square
256
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Proving a binary operation is not associative given a latin square

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#group-theory #finite-groups #binary-operations #associativity #latin-square
112
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What is a Latin Square?

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#definition #latin-square
53
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How-to leverage two unique orderings for a list to produce a single unique ordering for that list?

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#random #latin-square
471
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Latin Square Problem: Indempotent Commutative Quasigroup of Order 7

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#combinatorics #combinatorial-designs #latin-square #cayley-table
171
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Cyclic Shift of Latin Squares

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#combinatorics #latin-square
198
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Minimal number of clues required to uniquely determine a Latin Square

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#computational-mathematics #latin-square
99
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A latin square of order $n$ has a weak transversal.

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#combinatorics #discrete-mathematics #latin-square #matrix-analysis
231
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Would an invalid Sudoku puzzle that becomes valid when you assume its validity be valid?

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#latin-square #sudoku

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