Websites I created alone or together with others.

  • Leon Klein
    My personal website you already discovered when you read this. Explore my personal website to learn more about me and my research.

  • Krark and Sakashima probabilities

    A Magic the Gathering website dedicated to a specific Commander deck featuring the partner commanders Krark and Sakashima. Designed to handle complex board states during repeated spell casts, this website offers simulations for numerous coin flips.

    This platform is particularly useful in situations with multiple copies of Krark in play and consecutive attempts to cast a spell. Instead of manually flipping numerous coins, which could significantly slow down the game, the website efficiently simulates these cast attempts. With the number of coins and cast attempts quickly escalating, the non-deterministic nature of the process becomes apparent. Even with a large number of copies in play, there is no guarantee that the spell will return to the caster’s hand for subsequent casting. By leveraging the website’s simulation capabilities, users can visualize the evolving board state, including available mana, number of casts, and more. This functionality extends to scenarios involving Krark’s Thumb, automatically making the optimal decision with each pair of flipped coins.

  • Prämiensparen Zinsen berechnen Work in progress

    A German web application designed to compute the correct interest rates for old Prämiensparen contracts offered by Sparkasse. This application allows users to input data from their original contracts, enabling the calculation of accurate interest rates and current balances. By utilizing this tool, clients can gain insights into the approximate amount of money owed to them by Sparkasse. For further information on this topic, you can refer to this article (only available in German).

    TL/DR: Certain old Sparkasse contracts employed incorrect interest rates that were disadvantageous to customers.

  • Explore your Tinder
    Although the web application is no longer available online, the code for the application can still be accessed on GitHub.

    The application was designed to visualize Tinder user data, providing users with an accessible tool to analyze their usage patterns and make comparisons with others. By leveraging this tool, Tinder users could gain insights into their interactions, matching-rate, overall activity on the platform, and many more.

    While the web application itself is no longer active, the availability of the code on GitHub allows interested individuals to explore and potentially adapt the application for personal use or further development.

  • More to come!