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WITTROCK / SudokuTrainer-0.000.005-TRIAL / lib / Games / Sudoku / Trainer / examples / naked_single.sudo 

            

              
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# naked_single
# 4 NS  23 preset
-89 --- 7-6
--- -1- ---
--- 5-- -2-
2-6 --7 ---
-4- -3- -1-
--- 4-- 9-5
-9- --4 ---
--- -7- ---
7-3 --- 86-