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How to find the rank of a sudoku without row reduction?

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#linear-algebra #matrices #matrix-rank #sudoku
1.5k
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My Simple Combinatorial Method to Enumerate All Sudoku Solution Grids

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#combinatorics #puzzle #sudoku
139
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In how many ways can we to place an $X$ in four cells, such that there is exactly one $X$ in each row, column, and $2\times2$ outlined box?

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#combinatorics #sudoku
720
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Number Theory - Regular Magic Squares (4x4)

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#number-theory #magic-square #sudoku
382
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Monte Carlo to solve sudoku puzzles

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#monte-carlo #sudoku
616
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Group theory and sudoku

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#group-theory #sudoku
132
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Magic Bingo Grids

Published on
#combinatorics #magic-square #sudoku
91
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Help needed in counting ways.

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#combinatorics #sudoku
90
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The uniqueness of sudokus after removing clues

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#linear-algebra #combinatorics #matrices #sudoku
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
692
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How many latin-square designs are orthogonal to this 4x4 latin square design?

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#matrices #puzzle #combinatorial-designs #latin-square #sudoku
313
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Equation to locate a square in a square

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#recreational-mathematics #problem-solving #sudoku
263
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4x4 Chromatic Sudoku Graph

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#graph-theory #proof-writing #sudoku
122
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Figure out which region of sudoku the item is in

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#graph-theory #sudoku
907
Views

Ideas for modelling the rules to Sudoku using first-order logic?

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#logic #first-order-logic #sudoku

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