It was not completely fair, as Bigorra used Archers, which look the same upside-down (or nearly so). I replaced them by Vaos now.
I guess the kanji were much easier, because at least the tiles all had the same shape, so you could search for the deviating shape you expected. The pictograms are all totally different (which is of course good for recognizing type rather than side, but we don't test that here). I therefore suspect that the kanji, which are also all different, are not much help even to those that can read them, and that they would mainly look at the tile shape.
Distinguishing the upside-down pieces is a little easier than being completely blindfolded. But only a little...
It was not completely fair, as Bigorra used Archers, which look the same upside-down (or nearly so). I replaced them by Vaos now.
I guess the kanji were much easier, because at least the tiles all had the same shape, so you could search for the deviating shape you expected. The pictograms are all totally different (which is of course good for recognizing type rather than side, but we don't test that here). I therefore suspect that the kanji, which are also all different, are not much help even to those that can read them, and that they would mainly look at the tile shape.
Distinguishing the upside-down pieces is a little easier than being completely blindfolded. But only a little...