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File:Diagonal-Sudoku-by-dyliu714-20080913.svg - Wikimedia Commons
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File:Diagonal-Sudoku-by-Skratt.svg - Wikipedia
Diagonal Sudoku | Perplexible
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![Puzzle No. 421 : Diagonal Compromise Sudoku [Daily League] | PS's puzzles +](https://prasannaseshadri.files.wordpress.com/2013/08/diagonalcompromise1.png "Puzzle No. 421 : Diagonal Compromise Sudoku [Daily League] | PS's puzzles +")
Puzzle No. 421 : Diagonal Compromise Sudoku [Daily League] | PS's puzzles +
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![Puzzle No. 503 – Diagonal Sudoku [Daily League] | PS's puzzles +](https://prasannaseshadri.files.wordpress.com/2014/12/diagonalblog.png "Puzzle No. 503 – Diagonal Sudoku [Daily League] | PS's puzzles +")
Puzzle No. 503 – Diagonal Sudoku [Daily League] | PS's puzzles +
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