Calculation and Evaluation in chess

Often during a chess game, you have so many different choices of moves in a position (especially, in a middlegame position) and each of them might seem reasonable. The important part is that we need to calculate the attacking possibilities very precisely.

Most players would spend about 20-30 minutes in the process of making a decision in that ‘critical position’ and unfortunately, that player would eventually play a bad move or make a terrible blunder. Have you been there?

Let’s take a look at a practical example.

Black just played 23…Qc8 and it is White’s turn now. How would you evaluate this position? Well, White is two pawns up; one of them is doubled on the c-file, while Black has a Bishop pair for White’s Knight pair.

How would you play here as White? You may also record your calculations/variations for your convenience. Please, take a few minutes and consider this training as a serious one. After calculating all possible variations, continue reading.

The above position is from the game of our guest coach IM David Miedema. As I have already mentioned in the beginning of the article, he took a lot of time in this position, and ended up making a blunder. But what was your evaluation and calculations? I hope you did not make the same blunder. 🙂

You’re welcome to see what happened in the game and check your calculations by watching the video lesson below:

In this video, you’ll learn about:

  • How to arrange your minor pieces
    • Active squares
      • Controlling the centre
        • Easiness of your position
          • Method of elimination
            • And lots more.
            • Author information
              IM David Miedema

              David Miedema is an International Master from the Netherlands. His biggest achievements include:


              –> 6th of the Netherlands, beating Anish Giri in the process, twice.

              –> Winning the Neckar open in 2010


              He gained crucial fun skills in teaching chess. He will be traveling around Europe making videos and live in nomad lifestyle.




              P.S. Did you correctly calculate the position above? Did you find this video instructive? What are your impressions on Miedema’s lesson? Feel free to comment below and discuss.
              Quick success in chess

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              • ayush

                outstanding article and wonderful lessons thanklyou so much for this great teachings .dear igor is david medima is available for coaching??thannkyou.please engage him to make paid courses as well.thanks.

                • It’s good to know you enjoyed the lesson!

                  I’m not sure if David is available for private coaching, but thanks for your suggestion to engage him for future paid courses! Your feedback about RCA authors is very important for me.

                  • Ugarovesk

                    Dear, Igor
                    Can you analyze this game/position using the course concepts Calculate Till Mate?

                  • male Gupta

                    okk sir it is my pleasure thnks for your time and responses dear sir gm rb ramesh is one of the best indian coaches ever and he is frined also on whatsapp and skype can you please contact him for making lessons in rca??

                  • male Gupta

                    dear igor sir i want to dicuss an itneresting topic that you have never heard of beocome there is a women of 34 years age of icc website her rating is 2790 and you will be surprised that how fast she played very accurate moves and she beats latest stockfish 8 and cfish and aslo tomorrow magnus app at age of is this possible for anyone??she is not a titled player alsos is she cheating what do you think sir.

                    • RCA_moderator

                      Interesting story. There may be some strong player playing with that account who did not bother to contact ICC for the displaying the title. Or they could be cheating. If they are cheating I am sure ICC will stop it eventually.

                      Prasaadh | Support Officer

                      • male Gupta

                        ok sir you are ocmpetely right she is using strong engines tahnks for help .what is igor going to do next??

                      • RCA_moderator

                        Thanks for your interest.

                        We will let you know about this in our blog posts.

                        Prasaadh | Support

                      • male Gupta

                        thanks sir

                      • male Gupta

                        dear sir a famours bulgarian grandmaster is arrested i nchess for cheating in the tournaments what do you think about that??thanks for your time and and igor are doing great work

                      • male Gupta

                        okk sir thanks very much for that

                • Jakov Glavina

                  hello sir can you plis share your fide profile? pleas it would mean a lot to me

                  thanks sir

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