Want to master an opening preparation? Probably every chess player at some point starts wondering how the champions of different generations would play against each other if time-traveling existed. Would Jose Raul Capablanca or Alexander Alekhine be able to beat the current top players? What about Robert Fischer? People also wonder how a modern grandmaster would stand against Paul Morphy or Wilhelm Steinitz. All these hypothetical situations usually come down to discussing one of the most important changes that chess has ever experienced. Modern players have got an indisputable advantage – they prepare with chess engines!