A Sunday walk through the city

Königsberg - Kaliningrad

Kaliningrad is a Russian enclave, surrounded by Poland and Lituania. Let's go back in 1735. Königsberg is a Prussian ciry and it's a habbit to take a Sunday walk through the town, crossing the bridges on the river Pregel.
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Crossing bridges

Seven bridges connect the two banks and two islands. As a game the question is raised: "Is it possible to make a walk through the town, crossing each bridge once?"
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