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Oscar Pollack vs Matthew R Wilson
Caplin Hastings Masters (2023), Hastings ENG, rd 9, Jan-05
Colle System (D05)  ·  1-0

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 11 (minimum 15s/ply)better is 1...e6 2.d4 d5 3.c4 Nf6 4.Nc3 a6 5.cxd5 exd5 6.Bg5 = +0.10 (29 ply) ⩲ +0.60 (34 ply)better is 3.c4 e6 4.Nc3 c6 5.cxd5 exd5 6.Bf4 Bf5 7.e3 Nbd7 = +0.40 (35 ply)= -0.18 (36 ply)better is 4.b3 Bd6 5.Bd3 b6 6.c4 O-O 7.Bb2 Nbd7 8.O-O Bb7 = +0.42 (31 ply)= -0.09 (36 ply)better is 6.O-O c5 7.Bb2 Nc6 8.c4 cxd4 9.exd4 Bd6 10.Re1 dxc4 = +0.26 (30 ply) 6...Bd6 7.c4 O-O 8.O-O Nbd7 9.Ne5 Qe7 10.Nxd7 Nxd7 = -0.25 (32 ply) ⩲ +0.56 (32 ply)better is 8.Qe2 O-O 9.c4 dxc4 10.Bxc4 c5 11.Rd1 cxd4 12.Nxd4 a6 = +0.34 (33 ply)better is 8...O-O 9.Qe2 c5 10.Rac1 a5 11.a4 Ne4 12.Rfd1 Nxd2 = -0.21 (34 ply)= +0.38 (33 ply) after 9.Qe2 O-O 10.c4 Rc8 11.Rfd1 cxd4 12.Nxd4 Nc5 13.Bc2 better is 10...cxd4 11.exd4 Nxe5 12.dxe5 Nd7 13.Qe3 Nc5 14.Be2 f5 = -0.13 (37 ply) ⩲ +0.53 (36 ply) 11...h6 12.f4 Rad8 13.dxc5 bxc5 14.Qg3 Nh5 15.Qh3 = 0.00 (40 ply) ⩲ +0.79 (40 ply)better is 14.Qg4 b5 15.Be2 d4 16.Qf4 h6 17.h4 Rad8 18.exd4 a6 ⩲ +0.74 (36 ply) 14...b5 15.Be2 g6 16.Qh6 d4 17.exd4 f5 18.exf6 Bxf6 19.f4 = 0.00 (40 ply) ± +1.61 (38 ply) 16.h4 Qxe5 17.Kh1 Qg3 18.hxg5 Bxg5 19.Qh2 Qxh2+ 20.Kxh2 ⩲ +1.50 (44 ply)= 0.00 (45 ply) 17.Nc4 Qc6 18.Nxe3 c4 19.bxc4 Bc5 20.Qxg5 Bxe3+ 21.Kh1 = 0.00 (40 ply) ∓ -1.80 (43 ply) 19...Rfd8 20.Rd1 Bf8 21.Qh3 c4 22.Rxc4 Bc5+ 23.Kh1 Ba6 ∓ -1.71 (41 ply)+- +11.74 (39 ply)+- mate-in-16 after 23...Qc8 24.Rdf2 a6 25.Rf7 Rxf7 26.Rxf7 Kxf7 27.Qg7+25...Be4 26.Rxe4 b5 27.Ref4 e5 28.Bxb5 Qf5 29.Rxf5 gxf5 +- mate-in-91-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

Annotations by Stockfish (Computer).      [35435 more games annotated by Stockfish]

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Kibitzer's Corner
Jan-31-23  fjacb: This is a really instructive game with some great mating ideas after 19...f5??:

20...Bd8 21.Qg7#
21...Rxf4 22.Qg7#
23...Rxd2 24.Qf8#
24...-- 25.Rf8+ Rxf8 26.Rxf8#
25...-- 26.Qxg6+ hxg6 26.Rh8#

The sound defensive maneuver for Black is also instructive: 19...Rfd8! threatening 20...d1=Q followed by 20.Rd1 Bf8 ∓, counterattacking White's queen and regaining a hold of the dark squares around the Black king.

Mar-10-23
Premium Chessgames Member
  fredthebear: Yes, 19...Rfd8! keeps the file closed and gives Black the advantage.

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