Where was my mistake?
I played through very quickly, my 1st thought is that you should capture on a2 with the rook, not the knight. There was a nice open file, and you gave it to your opponent, and that pin on the knight severely limited your choices.
I played through very quickly, my 1st thought is that you should capture on a2 with the rook, not the knight. There was a nice open file, and you gave it to your opponent, and that pin on the knight severely limited your choices.
Agreed. I also didn't really understand the point of 16 Rfc1, which cemented your knight into its fate on a2.
After 12 Rxa2 I would say you had a nice advantage.
Things started going south for you on around 19 Rc2.
I would have moved my knight to c3 and taken control of the open a file one way or another
22.Rac1! could have won.
22...Bxa2? 23. Qa7!! wins easily.
22...Rxa2 23. Rc8+ Qxc8 24. Rxc8+ Bxc8 25. Qb6 Ra8 (FORCED, OR mate/loss of piece) 26.Qc6.
Any other reasonable answer is met By Nc3 , then you work out the rest on maintaining the material advantage.
As some people have said
13.) Nxa2 and
19.) Rc2 were very bad.
Although nobody really explained why, so I'll offer a little bit of explanation.
Rooks generally are best controlling open files. After Rxa2 instead of the bad Nxa2, you can easily bring the other rook over, and now black has no way to challenge your control of it.
At 19.) Rc2, if black captured your rook, and you recaptured with your rook, this would be very good for you, because now you dominate the only open file - obviously black has no way of challenging it at all unless he wants to trade his queen for your rook.
Simply moving your knight to a better square (c3) was far better because of this.
By playing Rc2, your rooks are basically doing nothing -- and now you can't move the knight at all, whereas before, moving the knight and offering a trade of rooks was better because youre moving the knight to a better square, and trading the rooks would have been awesome for you.