George Jempty wrote on 07/27/25 at 19:45:34:

I put "3.Bg5 Seirawan" in the site search box and turned up these two:

• Best vs Seirawan's anti-NID 1.d4 Nf6 2.c4 e6 3.Bg5
  https://www.chesspub.com/cgi-bin/chess/YaBB.pl?num=1364204458
• Seirawan's Anti-Nimzo from White's perspective
  https://www.chesspub.com/cgi-bin/chess/YaBB.pl?num=1499894885

In the top one kylemeister wrote `this was the second instance of "what should I play against 3. Bg5?" in the last couple of weeks`, so I went to the Nimzo and Benonis board. I don't know a way to sort by Started (date), so I put "2013" in the browser find box ( ctrl+f ), eventually found this one on page 4.

• Neo-Indian
  https://www.chesspub.com/cgi-bin/chess/YaBB.pl?num=1363392226

There's a bit of coverage of this line on the ChessPublishing site. In the July 2006 Nimzo/Benoni update, Richard Palliser (filling in for John Emms) annotates the game Tom Piceu-John Van der Wiel, Dutch League 2005. In his notes, Palliser addresses the following responses: 3...h6, 3...d5, 3...Bb4+, and 3...c5. He also notes that Piceu is the "current leading exponent of the line", but that was about twenty years ago. A glance at the database shows that Grischuk and Erigasi have been employing it frequently, albeit mostly in blitz.

Palliser also mentions that this line, which he calls the Neo-Indian or Seirawan Attack, is featured in one of the SoS columns by Jereon Bosch in New in Chess magazine. Unfortunately I haven't been able to track down the specific issue.

Edit: I just watched Boris Avrukh's YouTube video on his Bogo-Indian repertoire for Black. At about 8:45 he talks briefly about the Seirawan Attack, indicating his recommendation is 3...h6. Getting his full analysis would involve purchasing his database, which is $34 or $50 depending on the option selected.

I searched the forum without success, but maybe I'm doing something wrong.  In any case, I would like to know of material,online or printed, on this 1.d4 sideline.

Thanks in advance