Solution to Sudoku no 277

Here is my original version of the solution:

...and here is another version from Mustapha Maazouz, a member of the Sudoku Puzzles Facebook group:

Christian Grailach created this one:

...and this one came from Hildebrando Murcia Camacho:

Solution to Sudoku no 1

Here is my original version of the solution:

...and here is another version sent to me by phoebe on Twitter:

...and here is another one supplied by Christian Grailach, a member of the Sudoku Puzzles Facebook group: