Based on: Josh Waitzkin Chessmaster Strategy Section 6 "The Art of the Trade." A video can be found here.

``````[Event "From Josh Waitzkin Chessmaster Strategy Section 6 'The Art of the Trade'"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "-"]
[Black "-"]
[Result "*"]
[SetUp "1"]
[FEN "r2q1rk1/p4ppp/1p2p3/2p5/2Pp4/PP1Pn2P/3QPRP1/RN4K1 w - - 0 1"]

1. Nc3
``````

Situation

1. Josh says "2 possible solutions" are a4 and Qc1. Technically, he doesn't say they are the only possible solutions.

2. My thought is to play Nc3 in this position. The chess.com says engine says Nc3 is the best (as in not unique) move.

• Actually, I probably would've done something like b4, but Josh really said that one has to calculate several moves ahead. So, after some deep calculation, I came up with Nc3. I figure the idea is that you realize that black's knight has only 1 defender and then you calculate this counter-intuitive move of seemingly hanging your knight to see if you can really pull off this knight exchange (if black were to attempt to exchange), among others.
1. It turns out Josh didn't even seem to do calculations with either a4 or Qc1. He just laid out plans assuming Black wouldn't make any move.

Questions:

1. Actually, is Qc1 is merely "good"? 3 of the best moves that the chess.com engine says (either by saying the move is best or by telling what is an alternative) are Nc3, Qa2, and a4. Is Qc1 strictly inferior to Nc3, Qa2, and a4, and, so, Josh is actually wrong here to prefer Qc1 to a4?

• 1.1. Josh says a4 weakens white's pawn structure. Good point, but I don't know. The engine says Qc1 is just 'good'.

• 1.2. Well I think the only 2 queen moves here are Qc1 and Qa2. I guess Qa2 is more active than Qc1. I don't know.

• 1.3. Another thing to note: Maybe Josh mistakenly said Qc1 instead of Qa2. After this correction, perhaps we can then talk about a4 vs Qa2 and then say Qa2 is better.

2. Wait so what exactly is the calculation here? I was expecting we do (WOLOG the Qc1 thing) Qc1, think of black's move, do a response, etc. In the end Josh just showed how the white knight could go Nd2 to Nf1.

Since you explicitely requested an answer...

I don't own that Waitzkin book, but merely judging from your excerpts his pedagogical talents are as doubtful as White's position here :P

First of all, Black might cement in his octopus on e3 with e5, f5, f4, after that an exchange on e3 makes White's plight only slightly better. Insofar your 1.Nc3 makes very much sense, since Black is a move short for the above plan now. But tactics always trumps strategy (which is what Waitzkin misses to highlight - also your other question, which you asked me to contribute on - maybe later :-) - is highly tactical in nature), and the critical line is of course 1...dxc3 2.Qxe3 Qd4. White won't exchange since a protected Pc3 would be a disaster in the endgame. So, 3.Qc1 a6 (Black wants to cement with b4 then) 4.a4 b5 5.cxb5 axb5 6.axb5 Rxa1 7.Qxa1 c2! 8.Qc1 Ra8!! 9.e3(!) Ra1!! 10.exd4 Rxc1+ 11.Kh2 Rh1+! 0-1. This line might have more holes than an Emmentaler as I calculated it even without a board (and 2350 was my ELO 30 years ago...), but it should show you the tactical dangers after 1.Nc3. It might thus well be that objectively White must grin and bear it and play Qc1,Nd2,Nf1 and play possum awaiting the incoming pawn storm at the kingside. a4,a5,axb6 exchanges a rook but then only Black invades the queenside (as long as the Ne3 is present, the Rf2 is factically out of play).

Lessons learned: If a GM says "play X", it might be he has subconsciously calculated a lot of Y that is quite as relevant as long-time positional considerations. And you rarely find those lines explicitely in a textbook. ("Hey, why should I axe trees for the lines after Y? It obviously loses after 10 moves!")

P.S. I wouldn't play White even if Waitzkin gave me five quids :-)