Here is the position we gave you to analyse. It is quite challenging.
As you know you can move pieces on the above board to analyse.
The first thing you notice here is that Black is two pieces up – he has the two extra bishops – but the black king is in trouble. White can play 1.fxg7, which seems pretty good: if you take the pawn then there is 2.h6, and when the bishop moves you have 3.Qh5 with the threat of Ng5+, and this is very strong. Maybe Black's best defence, after 1.fxg7 is ...Be7, and the game goes on.
However, let's take a look at 1.Qg6, which is clearly very interesting. If the king moves to f8 or g8, because Ng5 comes with great force – it actually leads to mate. So Black must take the queen, and then 2.Ng5+ (if you play 2.hxg6++, then after 2...Kxg6 it looks like Black is completely fine) when 2...Kh8/g8 again result in mate (after 3.hxg6).
But Black plays 2...Kh6 after which 3.Nf7+ Kh7 is pretty much forced. So that would continue 4.Ng5+ and repetition. But wait a sec, White can try to win! How about 4.hxg6++ Kxg6 5.Nh8+ Kg5 (the only flight square available to the black king). Now you can think about a lot of interesting checks, like 6.Rh5+ or 6.Nf7+, until you hit on 6.Rd4, after which White is winning. Or is he?
And here is IM Sagar Shah discussing it in detail – and explaining why it is called the "Nihal Challenge".
You can stop at any stage and do your own analysis, right here on the board (here's a comprehensive tutorial on how to get the most out of the game viewer). One big advantage is that you can start an engine (fan icon) that will help you to analyse. You can get multiple lines of analysis by clicking the + button to the right of the engine analysis window. The "!" key, incidentally, shows you the threat in any position, which is incredibly useful in the case of unclear moves.
There is one more thing you can do. It is a lot of fun, but also a serious challenge: Click on the rook icon below the notation window. This will allow you the play the above position against Fritz, at your level of playing strength (e.g. "Club Player"), right here on the news page. Note that your analysis, in which you can delete, move or promote lines, is stored in the notation as new variations. In the end you will find the game with your analysis in the cloud. So nothing is ever lost.
Please tell us what you think of this analysis. Do you agree, can you poke holes into it?
