04-01 - 7, 5, 9 or 81

The last of my week of photos with numbers. This is number 7 ....oeps all 9 are missing. It is the only number that was not already given. It is not marked in any of the 81 squares, but of course it is hidden in the number of this sudoku.

[Peter Dulis]

nice

[MamaBec]

Good brain game!