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Colin McNab vs Anothai Rittiphunyawong
Thessaloniki Olympiad (1984), Thessaloniki GRE, rd 4, Nov-22
English Opening: King's English Variation. Closed System (A25)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Feb-17-20  Walter Glattke: 22.g4 seems to be good.
Feb-17-20  newzild: Apart from:

22. g4

and

22. Rxf5 Rxf5 23. g4 ...

... one must also consider:

22. Rxf5 Rxf5 23. Rf1 Rf8 24. Rxf5 Rxf5 25. g4

Feb-17-20  Vermit: Anothai nice mess
Feb-17-20  Cheapo by the Dozen: Dumb puzzle; the only challenge is picking amongst alternatives that are almost equally devastating, but which don't lead to a traditional clearcut fast Mondayish resolution. And one of the two alternatives is what ANYBODY would thinking of playing in the position, namely 22 g4 to attack the pinned knight and thus recover the piece down.

Either way, the points of the puzzle are that getting White's bishop to f5 or otherwise taking charge of the diagonal(s) will wreak more havoc than simply recovering the piece, and that attempts by Black to get his king out of the line of fire are too cumbersome or slow.

Feb-17-20  TheaN: Atypical Monday where we're not going over the Black king (directly) but pinned pieces.

I see many have already pointed about both the trivial nature of this puzzle (22.g4 directly isn't necessarily a hard move to spot) and what would be preferable.

However, what I miss in the analysis (and what I personally missed) is that White's initially a <piece down> and that in all variations <Rc8 falls> due to the looming threat of Bf5+; if either royal piece moves to avoid the royal fork Rc8 is the victim. This is the <only> reason White wins, else it just equalizes. I thought we'd simply go a rook up, but that's thus not the case.

<agb> states correctly that from a simplifying point of view, 22.Rxf5 Rxf5 23.g4 is preferable as it eliminates major pieces (the f-rooks). I'd guess both moves are correct, but to understand the semantics of the puzzle one must at least notice Rc8 falls too.

Feb-17-20  zb2cr: Looks as though 22. Rxf5 forces 22. ... Rxf5, since 22. ... Qe7 is met by the double check 23. Rf6. That leaves Black with only two moves, both of which lead to immediate mate: 23. ... Kxf6; 24. Rf1# or 23. ... Kh5; 24. Qe2#.

Returning to 22. ... Rxf5; 23. g4!, Rf8; 24. Bxf5+, Rxf5; 25. gxf5+ leaves White up by the exchange, with Black's Knight having mobility problems.

Feb-17-20
Premium Chessgames Member
  chrisowen: Far from a madding crowd yith?
Feb-17-20  RandomVisitor: A deeper look shows nothing new...


click for larger view

Stockfish_20021009_x64:

<43/73 1:09:08 +17.44 22.g4 Rce8 23.Bxf5+ Rxf5 24.gxf5+ Kf7> 25.Bxh6 Bf6 26.Kh1 Ke7 27.Bg5 Kd8 28.Bxf6+ Kc8 29.Rfe1 Kb8 30.Qc2 Ka7 31.Re6 Qf7 32.Qxc7 Qh5 33.Qg7 Rh8 34.Qg3 Qxf5 35.Bxh8 Qxd5+ 36.Qg2 Qxe6 37.d5 Qe3 38.Rd1 Qe7 39.Bd4+ Kb8 40.Rc1 a5 41.Bb6 Qh7 42.Qg4 Nc5 43.bxc5 dxc5 44.Bxc5 Qf7 45.Bd6+ Ka7 46.Rc7+ Qxc7 47.Bxc7 a4 48.Kg1 Kb7 49.d6 Ka7 50.Qf3

<43/72 1:09:08 +13.63 22.Rxf5 Rxf5 23.g4 Rcf8> 24.Bxf5+ Rxf5 25.gxf5+ Kh7 26.Qc2 Kh8 27.Qxc7 Qxc7 28.Rxc7 Nd8 29.Rd7 Bf6 30.Rxd6 Kg7 31.Rxa6 Kf7 32.Kg2 Be7 33.d6 Bh4 34.Bxh6 Ke8 35.Kf3 Nf7 36.Bf4 Kf8 37.Ke4 Kg7 38.d7 Kf8 39.Bd6+ Kg8 40.Ra8+ Bd8 41.Bf4 Kh7 42.Ra6 Be7 43.Re6 Bxb4 44.Re8 Ba5 45.Be5 Kh6 46.Rf8 Ng5+ 47.Kf4

43/77 1:09:08 +13.23 22.Qd3 Rce8 23.Rxf5 Rxf5 24.g4 Rxe4 25.Qxe4 Bf6 26.Rf1 Kf7 27.Rxf5 Qe7 28.Qf4 Nd8 29.Qxh6 Ke8 30.Rxf6 Kd7 31.Qg5 Kc8 32.Rg6 Qe4 33.Rg8 Kb7 34.Rxd8 Qb1+ 35.Kg2 Qxb4 36.Qf5 Qc4 37.Qc8+ Kb6 38.Kg3 Qd3 39.Qb8+ Ka5 40.Qxc7+ Ka4 41.Re8 Qe2 42.Qxd6 Qe1+ 43.Kh3 Qf1+ 44.Kh4 a5 45.Re7 Qg2 46.Kg5 Qc2 47.Qb8 Kb4 48.Qe5 Kc4 49.Qd6 Qxa2 50.Qc5+ Kd3 51.Qxb5+ Kc3

Feb-17-20  ajile: After 22.Rxf5 Rxf5 the Black rook on f5 can't ever escape and White can at his leasure simply pile up on it. At the end of the day Black simply loses a piece regardless of what Black plays since White has Rcf1, Qd3. And if ..h5 to stop g4 White plays h3-g4 with the same result. Black can't stop g4 from happening either sooner or later.

Black to move:


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Feb-17-20  eblunt: Isn't 21 ... h5 possibly better for black ? delays whites g4 and gives a retreat square for the king. Can obviously gives back the knight, but avoids losing the exchange afterwards.
Feb-17-20  ewan14: Where did black go wrong ( in the opening ) ?
Feb-17-20  ewan14: Should he have retreated his knight on c6 and moved his pawn there ? I need to work more on these subtle openings
Feb-17-20  RandomVisitor: After 15.Rbc1 no pieces have been exchanged


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Stockfish_20021009_x64:

<40/54 11:35 +0.49 15...Rac8> 16.a3 bxc4 17.Rxc4 Bf7 18.Nxe7 Nxe7 19.Rcc1 Be6 20.Rfe1 Rcd8 21.Qc2 c6 22.Rf1 Ra8 23.Qd2 Rad8 24.a4 h5 25.Bb6 Rb8 26.a5 Bh6 27.Be3 Bg7 28.Rf2 Rf7 29.Bb6 Bh6 30.Rd1 Rbf8 31.Be3 Rd8 32.Re1 Bg7 33.Rff1 Rdf8 34.Rd1 h4 35.d4 fxe4 36.dxe5 Nd5 37.Bxe4 hxg3 38.hxg3

Feb-17-20
Premium Chessgames Member
  Breunor: ewan 14, according to Stockfish, one weakening move is 11 h6:

11 h6 better is 11...a5 12.a3 Rb8 13.f4 fxe4 14.dxe4 Qd7 15.b4 Bg4 16.h3 = +0.17 (22 ply)

But the move that puts him behind is 15 Bxd5?

5...Rad8 16.fxe5 dxe5 17.Bc5 bxc4 18.dxc4 fxe4 19.Rxf8 = +0.38 (21 ply) +1.52 (29 ply)

Perhaps even worse is 16 Nd8?

16...Nd4 17.Nxd4 exd4 18.Bf2 Rac8 19.a3 Rfe8 20.Qb2 fxe4 ⩲ +1.37 (28 ply) +2.29 (29 ply) after 17.fxe5 dxe5 18.d6 cxd6 19.exf5 Rc8 20.Rxc8 Qxc8

Black's subsequent three moves are all considered poor also but he is already in bad shape. .

Feb-17-20  RandomVisitor: 5...d6 is apparently playable for black


click for larger view

Stockfish_20021009_x64:

<35/51 04:55 +0.18 5...d6 6.e4> h5 7.h3 Nd4 8.Nge2 Ne7 9.0-0 Nxe2+ 10.Qxe2 Nc6 11.f4 Nd4 12.Qd1 c6 13.Be3 exf4 14.Bxf4 0-0 15.Qd2 Be5 16.Rae1 h4 17.g4 Bd7 18.Be3 f6 19.Ne2 Nxe2+ 20.Rxe2 c5 21.Ref2 Bg3 22.Rf3 Be5 23.d4 cxd4 24.Bxd4

Feb-17-20  ajile: <RandomVisitor: 5...d6 is apparently playable for black>

lol Are you sure??

Feb-17-20  RandomVisitor: <ajile>...My computer is *sure*, I don't play this opening... I'm just looking for places black can improve.
Feb-17-20  cormier: it would be a sicilian dragon attack vs a k.i.d. ..... black have a greater 65% succes
Feb-17-20  cormier: 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6: 6. e4 f5 7. Nge2 Nf6 could follow turning into a kind of marotzy bind vs a leningrad dutch
Feb-17-20  ewan14: Thank you Breunor
Feb-17-20  Everett: Botvinnik System strikes again
Feb-17-20  ajile: <RandomVisitor: <ajile>...My computer is *sure*, I don't play this opening... I'm just looking for places black can improve.>

The position (at least for me) is just BEGGING for ..f5 and a Leningrad Dutch.

(after ..your 5..d6 of course)

Feb-17-20  RandomVisitor: <ajile>I have always been a 1.e4 player, always had plans to play other openings, but never got around to it.

After 14.b4 black can play 14...Nd4

White can now force a capture of the b7 pawn after some pieces get out of the way, but black now has some counterplay and this might be the best choice


click for larger view

Stockfish_20021009_x64:

<56/85 4:05:05 +0.21 14...Nd4 15.fxe5 Nxe2+ 16.Qxe2 Bxe5 17.Nxe7 Qxe7 18.exf5 Bxf5 19.Bxb7> Rae8 20.g4 Bd4 21.gxf5 gxf5 22.Rf3 Bxe3+ 23.Kh1 f4 24.Bc6 Rb8 25.Rh3 Qg5 26.Be4+ Kh8 27.Qb2+ Rf6 28.Rf1 Rg8 29.Rg3 fxg3 30.Qxf6+ Qxf6 31.Rxf6 gxh2 32.Kxh2 Kg7 33.Rf5 Rb8 34.b5 axb5 35.cxb5 Rf8 36.Rxf8 Kxf8 37.Bb7 Bd2 38.Kg2 Ke7 39.Kf3 h5 40.d4 Ba5 41.Bc8 d5 42.Bh3 Kf6 43.Ke3 Bb6 44.Kd3 h4 45.a4 Kg5

Feb-17-20
Premium Chessgames Member
  thegoodanarchist: Good Monday puzzle, @ chessgames
Feb-18-20  ajile: <RandomVisitor: <ajile>I have always been a 1.e4 player, always had plans to play other openings, but never got around to it. After 14.b4 black can play 14...Nd4>

Really interesting position, thanks for the post.

:o)

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