@swissclive it's very interesting that you mention Chess as a means to explain the concept of a blockchain to people. I was thinking myself the other day how cool it would be if chess.com would actually have a blockchain-enabled reward system!
Chess in itself uses an ELO-rating: winning to a higher-rated opponent wins you more points than losing to that same opponent and vice versa.
Are you aware of any blockchain-enabled chess platforms? I looked for Ethereum dApps on Chess but couldn't seem to find any...
See ya!