It's a bit pretentious for an amateur chess blog to promote an extremely popular chess engine, but the free engine HOUDINI is an ideal complement to the equally free resources SCID and MILLBASE.  With SCID, MILLBASE, and HOUDINI, any chess hobbyist can have immediate access to professional-quality computer chess resources.

What's that-- you want to learn how to use SCID?  Glad you asked, because yours truly produced detailed videos explaining exactly this.

1. SCID Workshop, pt.1
2. SCID Workshop, pt.2
   

I've updated my White repertoire against the Nimzo-Indian, based on the method of the positional Nimzo assassin, Sammy Reshevsky.  After 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4, I want to play simply 4.e3 intending Nge2 and a3.

I am happy to publish the following e-book of annotated games, date-stamped in case I decided to supplement or revise it in the future.

Below is an opening outline to sort out Black's fourth-move options, and the links go to illustrative game examples.

Nimzo, Rubinstein 4.e3, Reshevsky plan
    A.    4...b6 5.Ne2
        1.    COBE 5...Ba6 6.Ng3 Bxc3+ (6...0-0?!) 7.bxc3 d5 8.Ba3 Bxc4 (8...dxc4?) 9.Bxc4 dxc4
            a.    Endgame line 10.Qa4+
            b.    Gambit line 10.e4 or 10.0-0
        2.    Romanishin-Psakhis 5...c5 6.a3 Ba5 7.Bd2 0-0! 8.Rb1 Na6 9.Nf4
        3.    Pseudo-QID 5...Bb7 6.a3 Be7 7.Nf4
        4.    Pseudo-Dutch 5...Ne4 6.Qc2 7.a3 Bxc3 8.Nxc3 Nxc3 9.Qxc3
    B.    Reshevsky variation, 4...0-0 5.Ne2 d5 (5...Re8) 6.a3 Be7 7.cxd5
        1.    Soviet line 7...exd5 8.b4
        2.    Fianchetto line 7...Nxd5 8.Bd2 Nbd7 9.g3
    C.    The IQP line, 4...c5 5.Ne2 d5 6.a3
        1.    Double IQP line 6...cxd4 7.exd4 Be7 8.Nf4
        2.    Karpov’s IQP line 6...Bxc3 7.Nxc3 dxc4 8.Bxc4
    D.    Botvinnik variation, 4...d5 (4...Nc6?!) 5.a3 Bxc3 6.bxc3 0-0 7.cxd5 exd5 8.Bd3
        Khalifman - Bologan, 2002
        Petrosian - Ljubojevic, 1983