I have a love-hate relationship with Double Domino, an old genre by Naoki Inaba. On one hand, the idea of placing dominos in the grid is quite novel, and there are many parts of the grid that resolve uniquely for surprising reasons. On the other hand, constructing these puzzles can be a pain in the rear end; sometimes, the parity restrictions are very strong, while other times, they are essentially nonexistent. I tried fixing this by adding an × clue not present in the original type, but this didn't resolve my frustrations completely.
Rules: Place A and B dominoes on the board using the squares containing letters as hints. The dominoes should all be connected orthogonally, but dominoes of the same letter must not touch at the edges. The squares contained in dominoes must not form 2×2 clumps. Additionally, an "×" denotes a cell that does not contain a domino.
Now for the puzzles. The first one is meant to be smooth, apart from a slightly tricky ending. The second grid has a mix of smooth parts and tricky parts. I did aim for clue symmetry with these grids, but in the end I think that might have been a bad choice. This genre is already difficult enough to construct as is, and I had to throw away a lot of good logic as a result. Oops.
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