Refuting 10...a5 (Najdorf - English attack)

A way that hasnt appeared in centaur chess databases?

He plays it as Black tho, what should we play as Black against 1.e4 in Rapport's name?

Wow. How did I forget it. This is what you should play to make Papa Rapport proud.

Doesn't 8.Qb1 give white the advantage in that position?

Lines are weird and messy, typical Winawer.

And Qb1 is the "main move" but Black will obviously not get forked.

No idea. Where can I find this database?

Well. I only know of 2. One from the Lecehnicher Scach Server and one from the ICCF. You have to be a member of the page and then just look for the database section.

RAPPORT FOR THE WIN.

I changed my mind.

10...a5 is not refuted.

(Refuted meaning black is lost)

I play this variation (10...a5), black is by no means lost, in fact white always has to be careful maneuvers like Qb8 followed by Rfc8 and d5 are enough for black to have counterplay

Yeah Logozar, I remember those analysis sections....

I deleted the analysis... I'd rather my opponents not play the critical lines 

Though I would like to test out my innovation on move 15.

Bronsteinpawn, you know which innovation this is 

Data analysis is always correct especially looking one move only. the one who wins is the player who understand the position, I had a player playing data base only and I found a good move that refute the so call winning move.

2Q1C proved it otherwise.

I'm sorry, I don't understand what you mean. Can you clarify?

For black maybe...

 You can look at one move and it will evaluate as winning or large winning percentage but if you go a few moves more it can be only slightly better or even. I tend to analyze deeper than one move to give better clarity, this is the danger in going by that one move in date base game " 10..a5".  In Sveshnikov variation where white knight take on a7 and wins a pawn but in two of the game white lost badly but I made the only move that save white and that was knight back to b5; my opponent was going on the two won games but I went further and found the saving move.

+1. I can also point out the following curiosity. Sometimes engines give a great evaluation, but the problem is it can require some tricky moves. U'll never find those moves without the preliminary knowledge. LoL

My analysis went several moves deep and I found problems for black in the most critical line on move 15.

This was after I had prepared lines in this specific line (10...a5) and played over 70 games in it.