You might be forgiven for loading the second puzzle and assuming there’s been a mistake. Each of these puzzles shares the same grid and the same givens, with the coloring helping make that obvious. The cage totals are different, though, making each puzzle unique, and progressively more challenging.
Every Other One
This is the first of a series of three puzzles which get progressively more difficult. Finish the first for a link to the second, and finish the second for a link to the third. Or wait, and I’ll post them here.