Hello and Welcome to 'Fight like Magnus: The Sicilian'! This opening course provides you with a full repertoire against 1. e4, based on the Sicilian Defense. I am a bit reluctant to write 'Defense', because in the Sicilian you don't intend to defend all that much, but rather want to 'fight fire with fire'!In the Sicilian Black immediately breaks the symmetry on move one, making it an ideal weapon to unbalance the game and play for a win. In the main lines of the Sveshnikov Black frequently sacrifices material to drum up an attack on the white king, which is fun to play and tricky for White to handle. If you are looking for an active and ambitious opening for Black, you are studying exactly the right course. As the title suggests our repertoire choices are based on the opening play of the current World Champion Magnus Carlsen. Through his whole career Magnus has mostly relied on two moves against 1. e4: the symmetrical 1...e5 and 1...c5 , the Sicilian. Over the years the mix between the two moves shifted back and forth. 1... c5 was a frequent choice in his younger years, but he played it less after he became World Champion in 2013. This changed in 2018, when Magnus returned to the Sicilian, making it his main weapon in his title match against Fabiano Caruana. In this match (including the tiebreak) (Magnus played seven games with the black pieces, and all of them featured the Sicilian. He managed to win the rapid game in the tiebreak after drawing all six classical time control games in the regular match.) As of today (Nov 11, 2019) Magnus Carlsen has not lost a single Sicilian in Classical time control not only since this match, but even since 2011! Admittedly, he did not play it that frequently between 2011 and 2018, but still a very impressive run.I am mentioning non-losing streaks, but what about wins ? Magnus has won many attractive games with the Sicilian, some of which are included as model games in this course. Alright, back to our repertoire concept. I have compiled a full repertoire for Black, based on the World Champion's repertoire. This means that any major choice should be according to games that Magnus has played, showing his belief in the merit of the line. This works well with most lines, but some rarer continuations never featured in the World Champion's games, so I selected lines that matched the structure and spirit of the overall repertoire.There are some cases where I suggest to improve on Magnus' play. I only do that if thorough engine-assisted analysis suggests that my alternative is significantly better or preserves more winning chances, while being of equal quality. You have to take into account that he has played the opening not only in Classical time controls, but also in Rapid and Blitz games. It is perfectly possible that he plays a second-tier move in a Blitz game, because he does not want to show his main preparation or simply forgot the line. In those cases it makes sense to not blindly copy all moves, but see if there is room for improvement. These cases are rare, though - he knows his stuff, of course !This course consists of 12 main chapters and this 'Quickstarter Guide'. The 'Quickstarter Guide' is a selection of the 40 variations that you should learn first to get a full overview of the Sicilian. It has all the information that you need to play it in your games, as the most frequently played lines are selected. It also features extensive explanations about ideas and concepts, serving as an introduction to the typical middle games. I suggest to learn the Quickstarter Guide first, then go through the individual chapters one by one, deepening your knowledge.