IM Renier Castellanos - Author at TheChessWorld Blog
IM Renier Castellanos is a Spanish chess player and coach who was born in 1982. He had a peak FIDE rating of 2528 and has 2 GM Norms.
He also holds the title of FIDE Trainer.
He has also won several tournaments in Spain and abroad.
He is also a popular online instructor who teaches chess students of various levels and ages on online platforms.
He has produced many chess courses and videos on topics such as positional chess, openings, endgames, and tactics.
Chess Articles by IM Renier Castellanos
15 Must-Know Chess Endgame Patterns
Endgame Patterns, some of the most important ones, are going to be presented in this article. These are endgames that tend to occur quite often or typical ideas that you should be aware of in this final part of your game. With today’s technological advances, everything is easier to access.Bobby Fischer: Complete Attacking Guide
Bobby Fischer is considered to be one of the best players of all time. He is an important personality of his time and many people, chess players or not, know who he was. Although he retired from chess rather soon, he left behind a great legacy in the chess world.How Chess Pieces Move: Complete Guide
Chess pieces (chessmen) and a board is the essential part of each chess set. If you have decided that you want to start learning how to play chess, then you need to get yourself a chess set. The board has 64 black and white squares and on it, you will need to set up 32 […]Sicilian Defense: Playing Against it – Complete Guide
Sicilian Defense is black’s most popular response to 1.e4. It is an opening employed at every level, from club players to top Grandmasters. There are many ways to play the Sicilian Defense and the resulting positions can be very different, which makes it a great opening choice for any player, regardless of their style. In […]Positional Sacrifice: Complete Guide
Positional Sacrifice is a very special kind of sacrifice in chess. The concept of sacrificing is quite common in chess. Players are usually happy to give up material in order to regain it with interest a few moves later. There are sacrifices that lead to winning material, immediate mate, or mating attacks. In the latter […]Nimzo-Indian Defence: Complete Guide
Nimzo-Indian Defence is probably one of the most common answers against 1.d4 nowadays. The defense was introduced by Aaron Nimzowitsch, the founder of hypermodern chess. Black doesn’t occupy the centre with pawns right from the start and plays for quick development. The center is controlled first by the pieces and only later on black will […]Sicilian Dragon: Complete Guide
The sicilian Dragon is one of the most complex lines of the Sicilian Defense. Black aims for a sharp, aggressive play and puts white under pressure right from the start. It is a line full of tactical ideas, perfect for those who want to play for a win with the black pieces. There are many […]Chess Openings: How to Learn Them? The Complete Guide
Chess openings: How to learn them? One important step in improving your level as a chess player is having a solid, well-developed opening repertoire that stands the test of time. You shouldn’t have to change your repertoire often. Rather improve and update the lines you already have. A good repertoire will help you get good, […]Is Chess a Sport?
Is chess a Sport? The old debate. Chess has officially been recognized as a sport by the International Olympic Committee since the year 2000. Despite that, opinions are still divided. Some people agree that it should be considered a sport, while others think otherwise. Both sides bring valid arguments, but let’s start with the beginning.London System: The Complete Guide
London System is one of the openings that has become increasingly popular over the past few years. For a long time, it has been considered a second-hand opening choice for white with a reputation of being dull, uninteresting, and suitable only for the “lazy players” who don’t want to learn any mainstream openings.
