Hello Michael et al,
Here's my penny's worth in the form of a game. If you want to skip the opening
proceed to "The position is currently" for a piece by piece set up.
[Event "NEWPORT OPEN"]
[Site "?"]
[Date "1988.05.22"]
[Round "5"]
[White "MORDUE, AT."]
[Black "SWALLOW P"]
[Result "1-0"]
[ECO "B77"]
[Annotator "Mordue,Tyson"]
[PlyCount "81"]
1. e4 c5
2. Nf3 Nc6
3. d4 cxd4
4. Nxd4 g6
5. Nc3 Bg7
6. Be3 Nf6
7. Bc4 O-O
8.f3 d6
9. Qd2 Nxd4
10. Bxd4 Be6
11. Bb3 Qc8
12. Nd5 Bxd5
13. exd5 a5
14. a4 Qf5
15. O-O h5
16. Rae1 Rfe8
17. Re2 Rac8
{The position is currently:
White: King g1, Queen d2, Rooks e2 and f1, Bishops be and d4, Pawns a4, b2, c2,
d5, f3 g2 and h2.
Black: King g8, Queen f5, Rooks c8 and e8, Bishop g7, Knight f6, Pawns a5, b7
d6, e7, f7, g6 and h5.
White to play. Black has just played leaving the a5 Pawn en prise.
White's main strategy in this type of position is pressure down the e-file
leading eventually to a Kingside attack because of the lack of communication
between the Black Queenside and his Kingside. I've won this scenario several
times. The main point is not to let Black play ...e7-e5 for free because that
would stop all the vertical pressure and give Black an advantage on the
Kingside.
Because Black has no light-squared Bishop he lacks control of e6. We'll come
back to that in a moment.
In this position I declined to play 18. Qxa5 precisely because of 18...e5 and if
19. dxe6?? Qxa5. Only in the case of Pawn takes Pawn en passant do two units
disappear from a single line, in this case the fifth rank, and this leaves the
two Queens facing each other. However, the fun didn't stop there!
I increased my control of e6 by playing}
18. Rfe1.
{If now 18...e5? 19 dxe6 wins a Pawn (or two) because 19...fxe6?? loses more
material after 20 Bxe6+. This is where Black's lack of a light-squared Bishop is
significant. If it stood on d7 this line wouldn't be possible.
Black replied with}
18... Bf8
{defending e7 whereupon I defended the d5 Pawn with}
19. c4.
{It was possible to play 19. Qxa5 because if 19...e5 then 20. dxe6 Qxa5 21.
exf7+ Kh7 22. fxe8=Q Nxe8 23. Rxe8 Rxe8 24. Rxe8 is very strong for White.
However, my patience was rewarded when Black played}
19... Nh7.
{I replied}
20. Qxa5
{The point is that now 20...e5 is met 21. dxe6!! Qxa5 22. exf7+ Kxf7 - there's
no other legal move because of the placement of the Knight on h7, the Bishop on
f8 and the White Bishop controlling g7 and h8 - 23. c5+ d5 24. Bxd5+ Re6 25.
Rxe6 - simplest - 25...Bxc5 26. Re8 mate! the mate is a discovered check from
the d5 Bishop.
The result is that White has won a good Pawn without allowing ...e7-e5. After
some thought my opponent replied}
20...h4
{For the sake of completeness I give the rest of the game.}
21. Qc3 h3
22. Bc2 Qh5
23. g4 Qh6
24. b3 Ng5
25. f4 Nh7
26. g5 Qh4
27. Qf3?!
{An oversight but I got lucky on the rebound. Better moves are 27. Rf2 or 27.
Qg3}
27... Nxg5
28. fxg5 Qxd4+
29. Rf2
[Now the pressure down the f-file is tremendous.}
29...f5
30. Re6 Qa1+
31. Rf1 Qd4+
32. Kh1 Qg7
33. Rxg6!!
{Yet again Black's Queenside pieces are cut off from the Kingside so White's
task is easy>) 33...Qxg6 34. Bxf5 Qxg5 35. Rg1 Qxg1+ 36. Kxg1 Bg7 37. Be6+ Kh7
38. Qf5+ Kh6 39. Qxh3+ Kg5 40. Qg4+ Kh6 41. Bxc8 1-0
On 10 December 2019 at 14:26 Paul Benson <paul.benson@xxxxxxxxxxxxxxx> wrote:
Hello Michael and all,
A few examples might assist?
Example #1.
1. d4 c5
2. d5 e5
| The black e-pawn has by-passed the white d5 pawn.
Had black been less ambitious and instead played, 2. ... e6, then white would
have the possibility of capturing with, 3. dxe6.
However when black by-passed with, 2. ... e5, white was denied the option of a
capture.
So a rule was invented giving white the opportunity of an en passant capture.
The game can continue in 2 ways from here.
(A). White chooses to capture, 3. dxe6, the black e5 pawn is removed from play
and the white d5 pawn transfers to the e6 square.
This is following the principle of had the black pawn been less expansive, and
played, 2. ... e6, white could have immediately captured it with, 3. dxe6.
(B). White declines to capture, 3. c4, and permanently loses the opportunity
to capture, dxe6.
This is because had black played, 2. ... e6, and white replied, 3. c4, then
black could have further advanced with, 3. ... e5, and achieved a black pawn
formation in 3 moves which could have been reached in 2 moves.
||
Example #2.
1. e4 d5
2. e5 d4
3. c4
| The white c-pawn by-passes the black d4 pawn, black has 2 options.
(A). Black captures with, 3. ... dxc3, exercising the en passant right to
capture as if the white c-pawn had only advanced a single square.
(B). Black declines, 3. ... c5, and permanently loses the right to capture,
dxc3, the en passant move must be played immediately after the by-pass pawn
advance, failure to respond immediately forfeits the option.
||
Paul Benson.
-----Original Message-----
From: Michael Rodgerson - Email Address: monex249@xxxxxxxxx
Sent On: 09/12/2019 23:28
Sent To: usbca_chess@xxxxxxxxxxxxx - Email Address: usbca_chess@xxxxxxxxxxxxx
Subject: [usbca_chess] EP
I have a hard time understanding EP, could someone help me and give me
some examples to workout?
Thank you
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