Sudoku na żywo #10 Y-wing - plansza treningowa

Start of solving the board: 1:12 Link to the board: https://sudokupad.app/0zuekowvwt Link to the Y-wing technique tutorial:    • Poradnik do sudoku #11 Y-Wing   Facebook fanpage: https://www.facebook.com/profile.php?... You can send any suggestions and board ideas to: [email protected]