Tripod Suodku
Solve online in Penpa+ (Draw regions borders using Edge (Normal - Thicker) mode. You can use 'Tab' button to switch between Edge and Sudoku modes. Colouring is available if you push 'V' button in Sudoku mode; thanks Nick Smirnov!)
Draw 7 regions in the grid. All places where three line segments touch each other are marked with a black dot. There may be no places where four line segments touch each other. Place the digits 1-7 in each row, column and region.
Solution code: Row 3, followed by column 3.
on 3. November 2021, 05:11 by Richard
Added link for online solving. Thx Nick!
on 28. October 2021, 19:32 by Nick Smirnov
Penpa:
https://git.io/JPYmr
Draw regions borders using Edge (Normal - Thicker) mode. You can use 'Tab' button to switch between Edge and Sudoku modes. Colouring is available if you push 'V' button in Sudoku mode.
on 18. June 2019, 11:03 by pin7guin
Schöne Variante! Hat mir gut gefallen.