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Daniel Naroditsky vs Jeffery Xiong
United States Championship (2021), St. Louis, MO USA, rd 2, Oct-07
Queen Pawn Game: Colle System (D04)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Oct-09-21
Premium Chessgames Member
  0ZeR0: 23.b4!
Oct-09-21
Premium Chessgames Member
  moronovich: Wonderful combination starting with 23.b4 !
Oct-09-21  cormier: sf 10 Depth 39

+1.74 24.Rxf5 Rh6 25.Bxe4 Bxe4 26.R5f4 Bd5 27.Ne3 Be7 28.Qd3 Be6 29.Nf5 Bxf5 30.Rxf5 Re6 31.Rf7 Qe8 32.Qh3.

+0.76 24.Ne3 g6 25.Nxd5 Qxd5 26.Rd1 Qc6 27.Rxe4 fxe4 28.Bxe4 Qe8 29.Bd5 h5 30.Qd3 Re7 31.Qc4 Bc5 32.Bxe6+

Oct-09-21  cormier: sf 10 Depth 43

+0.78 23....g5 24.Bxe4 Bxe4 25.Rxe4 Qxe4 26.Qxe4 fxe4 27.bxc5 Rxc5 28.Ne3 Ra5 29.a3 Rb5 30.Bd4 Rb3 31.Rc1 Rxa3

+0.94 23....b5 24.Bxe4 Bxe4 25.Nd2 Bxb4 26.Nxe4 fxe4 27.Qxb5 Qb7 28.Qe2 h6 29.h4 Bc5 30.Rxe4 Qa6 31.Qxa6 Rxa6

Oct-10-21  cormier: sf 10 Depth 38

+0.45 13....g6 14.Rac1 Qe7 15.Qe3 Rfd8 16.Ndf3 Ne4 17.cxd5 exd5 18.f5 f6 19.Ng4 g5 20.Bxe4 dxe4 21.Nh6+ Kh8

Oct-16-21  Ulhumbrus: If after 6 Bb2 it is more important for Black to play ...Ne4 than it is important for Black to prevent Ne5 this suggests 6...Bb7 so that after 7 Bd3 cd 8 ed Ne4 becomes possible in time to play ...f5 as in the game Bogoljubov vs Botvinnik, 1936

However in that game the move ...Ne4 comes only later and Alekhine indicates that Bogoljuboff could have prevented the move ...Ne4.

In the present case after 6...Bb7 7 Bd3 cd 8 ed Ne4 9 Ne5 f5 10 f3 expels the black N from e4.

This suggests that Black is advised better to let White prevent the moves ...Ne4 and ...f5 and to play them only if White does not prevent them.

One alternative to 10...Nbd7 is 10...Nc6 so that if White acquires the nanging pawns the knight can attack them by ...Na5.

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