
I am half way through Igor Khmelnitsky's excellent "Chess Exam: You vs. Fischer". As a professional statistician I could not resist predicting my final scores in the different categories based on the half time score. I did not interpolate to the last decimal as I only wanted a feel for the overall picture.
The overall score (1329) is a bit depressing and some of the scores in the different categories somewhat surprising. The Big surprise was my crappy tactics score. My Chesstempo rating has been floating upwards and I am currently rated around 1830. My Chessmagnetschool (CMS) rating has reached a plateau at 1540 and I expected the Overall score and my CMS score to agree.
On the other hand, my ICC rating has been rather stable around 1225 based on a fairly low number of recent games. I suppose the overall score is a better approximation of my true playing strength.
My middlegame skills are just non-existing. That is no surprise. However, I expected my Strategy skill to be just as bad.
| Category | Score | % | ELO |
| Overall | 116 | 38.6% | 1329 |
| Middlegame | 51 | 26.8% | 1059 |
| Endgame | 65 | 59.1% | 1779 |
| Calculation | 32 | 40.0% | 1408 |
| Strategy | 40 | 57.1% | 1668 |
| Tactics | 44 | 29.3% | 1040 |
| Attack | 46 | 46.0% | 1319 |
| Counterattack | 43 | 47.8% | 1447 |
| Defense | 27 | 24.5% | 995 |
| You are Better | 58 | 52.7% | 1769 |
| Equal | 38 | 38.0% | 1245 |
| You are Worse | 20 | 22.2% | 980 |
| No Sacrifice | 64 | 53.3% | 1581 |
| Sacrifice | 52 | 28.9% | 1108 |
