going nowhere fast

I got an invalid response and cannot see the error.

Perfectly logical thanks.

Logic is fine, nice puzzle.

Thank you.

Now that's very good!!

Good one, thank you!

Took me a moment to see the image. Fabulously done and fully logical. Thank you for the puzzle.

Incredible!

Thank You.

Very, very nice, thank you.

Great puzzle. Perfectly logical and wonderful final image. Well done.

Thanks.

Excellent puzzle, thank you.

Very cool!!! Thanks!

Very nice, thank you.