Today we have the pleasure to announce co-authored endorsed repertoires. From today on you can acquire GM Rafael Leitao’s Sicilian Najdorf, co-authored by GM Rafael Leitao and Chessable user logozar. While we have an explanation of what this entails available in the FAQ, I thought I would elaborate on the logic behind this new approach to chess opening repertoire publishing. Why not just have the Grandmaster publish the repertoire on their own? Certainly, this could be an attractive option but most Grandmasters already have their schedules full to the limit, not giving them enough time to provide a Chessable repertoire and its students, the attention they deserve. By partnering up with a more active Chessable user and offering an endorsed repertoire, our users get the following benefits:
Accurate scaffolding (Zone of Proximal Development) At Chessable we like to inform our decisions in science. The decision to allow for co-authored endorsed repertoires was no different. In educational psychology, there is a well-established principle known as “scaffolding” or “the zone of proximal development.” While originally applied to children’s development, it has been successfully applied in many other settings as well. In a nutshell, for appropriate learning to occur it is important that the learning content you use is suitable for your current skill level or understanding. Because of this, it may be the case that you get better results with explanations from a player rated USCF 1,800, closer to your own level than it would directly from a FIDE 2,500+ Grandmaster. Because we aim to suit all skill levels, co-authored endorsed repertoires were a no-brainer.
Grandmaster level players command high fees, and rightly so. Their time is a limited resource worth it’s value in gold. Opening repertoires shared by Grandmasters typically range in value from $20-$40. Sometimes educational content they create can even be sold for hundreds of dollars. By taking an endorsed repertoire approach, we offer a more affordable option; after all the repertoire can be yours today for a low fee of just $9.99.
Accurate content (GM Guaranteed!)
When endorsing a repertoire, we require the Grandmaster to review the lines to make sure they are an accurate reflection of what he or she recommends. This means that the variations you will be learning are GM approved and by studying them, you are learning indirectly from the best of the best.
More support This kind of repertoire is often brought to you by an active Chessable member who is also a big fan or dedicated student of the higher-level player. By having such a user involved in the repertoire, you can get answers to any questions that may arise much quicker.
At Chessable, we want to offer learning content to suit everybody’s needs. The more repertoires, the better. It is then up to you, the users, to decide what you like and what you don’t. You never know where the next gem of a work will surface from. By fully disclosing what a repertoire contains upfront, you can make an informed decision based on whether the repertoire interests you or not. Do make full use of our star rating facilities to let the repertoire owner and the community know what you think of their work.
Those are just a few of the reasons why we are indeed very happy to present GM Rafael Leitao’s Sicilian Najdorf opening repertoire. This repertoire is packed with 15,300 words of instruction from a club-level chess player. Do check it out; you may just find it is exactly what you needed. For today, that’s all from us and we hope to bring you even more great content in a near future.
I had a chat with a Chessable user, Professor Tim McGrew. Tim provides an in-depth Chessable review and how it has helped him improve his chess. Tim told us that opening preparation was one of the keys to achieve his lifelong ambition, the USCF National Master title. Openings that Tim rehearsed on Chessable were played in some important games. Thanks to our science-backed chess opening learning tools, Tim was able to make the most out of his opening preparation. His review follows in form of an unaltered interview:
Read on; this review style interview is packed full of instructional moments!
1) How did you find out about Chessable?
Word of mouth — my teenage daughter had found the site and described it to me.
2) What were your first few days on Chessable like?
Initially, I clicked around to see what was free and started exploring it. IM John Bartholomew’s Scandinavian repertoire — the free version — blew me away. Once I had seen that, I realized that I needed to get an account and import some of my own analysis for study.
3) How has your experience using Chessable changed since the first few times you used it to what it is like now?
The biggest change came when I realized the kind of work I needed to do in order to create my own opening repertoires for self study. There are two critical points here. First, a serious repertoire that will actually serve in tournament conditions at master level has to be fairly detailed. Yes, there are some openings that require a lot more work than others, but even theoretical sidelines demand some detail work these days. Second, I realized that the fundamental feature of Chessable — the spaced repetition — would enable me to recall much more than I was used to carrying around in my memory.
4) How many hours per day on average would you say you use Chessable for?
This varies greatly, as I have a family and a day job. Some days I may put in several hours (which fly by, since it’s fun); others, just a few minutes.
5) Your 53 day streak is impressive, any tips to fellow users to achieve such great study habits?
I like to do at least something every day. If I set myself a micro goal of doing ten positions a day, there is really no excuse not to do it. And generally I will do much more than the micro goal, even on a busy day.
6) What’s your favourite repertoire? If it’s a private one, could you please describe it a little bit that would be great.
My favorite public repertoire has to be the full version of John Bartholomew’s Scandinavian repertoire. It’s solid, interesting, and full of ideas that he has clearly tested with computer assistance. And he covers even the more obscure sidelines, making it a complete repertoire against 1.e4.
I have several private repertoires that I have constructed. Usually I will start with an idea I like, fold in the main lines from some GM games, and then look it up on a theory site to see what is current. Once I have built it out to a certain level of detail, I run through all of the lines with Stockfish 7 at 20 ply or deeper to do some tactical cleaning.
It’s very important, however, not to restrict the repertoire to lines the computer comes up with. Human opponents are going to play moves that look natural to them, and at this stage of repertoire building one needs to include those lines to maximize the probability of using one’s preparation over the board.
7) What have you noticed that is different about your chess play now that you use Chessable?
I had several holes in my repertoire that needed to be plugged. I’ve been in the upper 2100s USCF for about a decade, and my repertoire was fine for beating most club players, but closer to master level it began to break down. I was still playing some lines that weren’t ready for mission-critical applications. And these days, strong opponents do their homework between encounters with the assistance of GM-strength chess engines. So if there are holes in your repertoire, they are going to find them!
With the Chessable tools, I was able to address this problem and plug those holes. I have also built some repertoires just for fun to explore some new lines I am considering playing. So Chessable has not only helped me to fix concrete problems but also inspired me to widen my repertoire, which should make me a moving target for my opponents’ opening preparation.
8) If you had any rating changes, what were they? Do you think Chessable contributed to this rating change?
Actually, yes! About a month and a half after I started using Chessable heavily, I finally went over 2200 and earned my National Master title, a lifetime ambition of mine. I’m over 50, and at my age, most chess players find their ratings going down rather than up, so you can well imagine how pleased I am with this turn of events! I have no doubt that my work on Chessable was a significant factor, not only because it sharpened my openings but also because it increased my confidence in my opening preparation.
9) Some people say studying openings is unnecessary and you should be able to play any opening well (eg Capablanca was a natural! Apparently). What do you think of this kind of statements?
I think it’s unrealistic for non-professionals to aspire to play every opening well, if by “well” you mean at their own rating standard. For example, I don’t play the Grünfeld from either side. Now, it’s good to understand the basic strategic concepts behind openings one doesn’t play. But the most important thing is to understand the openings one does play.
10) What would you say to someone who has either just started using Chessable or is thinking of using it?
Players at different levels need different things. If you are a beginner, you need to get into the middlegame alive. I’ve been thinking of creating a repertoire for just that purpose for some of my younger students. If you are a club player (say, 1400-1800) and serious about moving up, you may want to work with a stronger player to develop a repertoire that is right for you. If you are over 2000 OTB and are willing to work at it, you can develop your own repertoires and upload them as private repertoires for personal study. But have a look at some of the ones that are built and for sale already — it could save you some time, and who knows, you might fall in love with something new!
Tim McGrew is a Professor of Philosophy at Western Michigan University. He has been playing tournament chess for about 40 years and coaches his two chess-playing daughters.
The answers to the interview questions appear unaltered as Tim answered them. Hyperlinks were added for the reader’s convenience by Chessable. This case study and Chessable review is made available with the kind permission of Tim. Thank you Tim for providing us with this Chessable review and interview. We really appreciate it!