Note to myself: When you play at the speed of a snail, when you do some mistakes somewhere in the 4 connected grids (so every code you send is wrong and you haven't time to start it again), when you send a code of a grid 2 times instead of sending the code of the grid you solved correctly and when, at the end of a round, you don't send the code of the grid you just solved correctly, thinking you have time to solve another one before the end of the round (and of course you don't have enough time to solve another),

you can not expect to make a good result !

Otherwise, it was an enjoyable test

Fred

I liked the idea of the X-sums sudoku very much so I have made two puzzles of this type for this weeks Friday-noon-puzzle at Logic Masters Germany. You can find them here: Easy 7x7 and Harder 9x9.

Have fun with these.