If you do have an appetite for tough challenges, GRENKE Chess Open 2019 is out there! As the organisers decided to connect GRENKE Classic with GRENKE Open in previous years the number of participants increased substantially. Thanks to that, now we have the largest chess open in Europe. I did also participated to last years event and you can read my observations and experiences from the first hand. GRENKE Chess Open takes place annually in Karlsruhe, Germany and this year it will be the fourth consecutive event. It is open to all players from around the world and it is expected that more than 1.500 players, almost 300 out of…