So despite looking like a weird choice, they actually made the most natural choice you can make in both cases.īeing such a natural shape, one would expect them to have been studied before, and indeed people have been playing with them for a long time. They count as different if you can’t rotate OR reflect one to make another. Blokus uses all the different blocks you can make out of 1, 2, 3, 4, or 5 squares.They count as different if you can’t rotate one to make another. Tetris uses all the different blocks you can make out of four squares (thus, the tetr is tetris).Of course, in tetris, you can’t flip the pieces over… you can only rotate them.īut it has to mean something that the same shapes show up in both games (except you need slightly different sets depending on whether you’re allowed to flip the pieces over or not).Īnd indeed, there’s a very simple answer to why they chose what they chose for both these games: You can flip the blokus pieces over and then you’ll be able to get all seven. Two seem to be missing.īut they’re only sort of missing. Almost as if I remember them from some very repetitive game I and 60% of the country used to play obsessively on our computers. Now if we pause for a minute, that middle row–the pieces made of four squares, looks mighty familiar. Play with them a little, and you might think to look at just the pieces with one square (there’s one), then the pieces with two squares (there’s one), then the pieces with two squares (there are two), and so on. I suppose it’s fine, but it doesn’t help that much to see what motivated their choice. So how did they choose them? It might be good to look at just one set. The pieces are, to say the least, quite irregular. You can put your pieces down only when they touch one of your existing pieces at a corner (but never a side!). Each one consists of between one and five squares. I was playing Blokus with some kids, and I asked: how in the world did they choose these pieces? There are 21 pieces in odd shapes of various sizes.
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