i stuck on this puzzle, and still didn't understand where "my" position is, there's only southeast and west
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Based on your screenshot - yellow tile says that the red tile is south-east from it. So, "me" position is not exactly known, but you know the relative positioning. In the same logic, the white tile says that the yellow tile is west from it. And so on.
Also, if you can't get it to work, there's a solution on my Youtube channel.