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What will I learn?

In this puzzle, you have to parse, store and manipulate two-dimensional arrays that are the bases for 2D problems. You also have to implement a simple but complete Finite State Machine and learn about this concept.

Learning Opportunities

This puzzle can be solved using the following concepts. Practice using these concepts and improve your skills.


The goal of the puzzle is to help Blunder the robot to go through the city. You have to decide what movement it will do next, based on its previous moves and the environment (obstacles). Read carefully the rules for the displacement of the robot and how to modelize the map of the city.

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Blunder, depressed since its artificial intelligence has been diminished, roams on the streets to find the nearest suicide booth. In order to save the robot, you are entrusted with the task of forecasting the path Blunder will take, so we can intercept him. You will have at your disposal the logics of the robot's displacements. What are you still doing here ? Run to Blunder's rescue !


If you like Blunder, try your luck with the other puzzles including Blunder (with different themes), « Blunder - Episode 2 » and « Blunder - Episode 3 ».