February

March

All solutions

 Archive League optimizers 2017th 

All solutions

May

June

All solutions

July

August

September

 3 columns 

October

November

December

 Archive of logical competitions 2017th 

25.02. - 28.02.

 Winter miniatures 

 Logical Alphabet 

25.08. - 28.08.

 Only Sudoku 

27.10. - 30.10.

 Two in One 

22.12. - 25.12.

 Cloned Sudoku 

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