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I realized that in a raft on the Canal d'Urgell there was a frog croaking. I stopped, saw it and took these three photographs from which I now ask you the following in La Vanguardia's Readers' Challenge: are you able to see where the frog is in the images?
There is no doubt that there is a frog. As a hint, I will tell you that it is partially out of the water, so now it will be easier for you to solve this visual challenge.
Likewise, I show you the three snapshots, which I have ordered, putting the most difficult first and then the easiest. So where's the frog?
How has things gone? Have you been able to solve the visual challenge? Yeah? No? To make it even easier I am going to show you the frog we are looking for in detail.
Has the hint I have given you helped you? Have you managed to overcome the Visual Challenge? No? Yes?... In any case, I am going to reproduce the three photographs again, but this time I have indicated the position of the frog, highlighting it with a circle.
