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Alexander Areshchenko vs Andrei Volokitin
TCh-UKR (2004), Alushta UKR, rd 5
Sicilian Defense: Paulsen. Bastrikov Variation (B47)  ·  1-0


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Kibitzer's Corner
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Apr-12-09  goodevans: At the end of an otherwise tough week, this, to me, was a bit of an Easter gift. 21 Rxf7 was just begging to be played and the only remotely difficult bit was recognising the need to deflect the Q or R from the defence of f5.

Perhaps if Id had the imagination to explore the immediate 21 b4 then I might have found the puzzle more difficult, but I only really considered making the deflection on move 23 and when I saw that it worked I started wondering whether Id overlooked something. Usually if I get a Sunday fairly quickly thats the case, but not today it seems.

Apr-12-09  AnotherNN: What's wrong with 21. b4? (21...Qxb4 22.Rf4 Qc5 23.Re4 which threatens mate).
Apr-12-09  5hrsolver: I didnt get any of this weeks puzzles.
Usually its -very easy, easy, meduim/easy, medium, difficult,very difficult, insane

This week its -difficult, more difficult, more than difficult, very difficult, insane, out of this world, out of this solar system.

Apr-12-09  njchess: The hard part of this puzzle was determining that control of the f-file, in particular f5, was necessary for White to win. Given that the f-file is Black's only means of escape from check, it wasn't too difficult.

Sacrificing the rook could only be justified after determining that the queen could be forced away from the 5th rank (i.e. 23. b4 was found). Great play by White. It took me about 6 minutes to find the game sequence, which is forced. Great play from White.

Premium Chessgames Member
  Once: <AnotherNN> See my post above. 23...0-0 ends white's attack.
Apr-12-09  c o r e: I was looking at 21.Rxf7 Kxf7 22.Qe6+ Ke8 23.Bb6 (I didn't see b4) Qd6 24.Bxh5, and black is finished.

I think I did pretty good today.

Apr-12-09  crazydotaplayer: omg this is the 1st time i get a sunday puzzle
Apr-12-09  RandomVisitor:

click for larger view

[+13.43] d=18 21.Rxf7 (3:22.34) 1665309kN [21...Re5 22.Bxe5 Kxf7 23.Bd4 Qd6 24.Qf2 Ke8 25.Bc5 Qf6 26.Qxf6 gxf6 27.Rxe7]

[+4.38] d=18 21.c4 bxc4 22.Rxf7 Kxf7 23.Qe6 Ke8 24.Bf5 Rxf5 25.Bd6 Qe5 26.Bxe5 Bc8 27.Qd6 Kf7 28.Bxg7 Re8 29.Bd4 Nd5 30.Rxe8 Kxe8 31.Qxc6 Bd7 32.Qxa6 Ne7 33.Qxc4 Bc6 34.Qc1 Bd5 35.b3 Rf8 36.Qh6 (3:31.22) 1712731kN

[+3.60] d=18 21.Bh3 OO 22.Qxe7 Qxe7 23.Rxe7 Bc8 24.Bxc8 Rxc8 25.Rexf7 Re8 26.Ba5 Re2 27.Bc3 Rg5 28.R1f2 Rxf2 29.Rxf2 c5 30.a3 Rg4 31.Ba5 Ra4 32.Bb6 Rd4 (3:34.49) 1725321kN

Apr-12-09  Stanley Yee: I got 21. Rxf7 and 22. Qe6+, but no way did I see 23.b4! That is just brilliant, deflecting the Queen off the "f" file. Bet Black didn't see it either...
Premium Chessgames Member
  agb2002: Black is a pawn ahead and threatens 21... hxg4 but his king remains uncastled and the central lines are controlled by White's heavy pieces and bishops. My first idea was to remove the black queen from the defense of the knight but after 21.c3 b4 (21... hxg4 22.b4 Rxh2+ 23.Bxh2) 22.a3 b3 White didn't make much progress.

Another idea is to open the black king position with 21.Rxf7 (threatening 22.Rxe7+ and avoiding 21... 0-0 22.Qxe7 hxg4):

A) 21... Kxf7 22.Qe6+

A.1) 22... Ke8 23.Qg6+ Kf8 24.Rf1+

A.1.a) 24... Kg8 25.Be6#.

A.1.b) 24... Nf5 25.Txf5+ Txf5 (25... Ke7 26.Qf7#; 25... Kg8 26.Txd5 and 27.Be6+) 26.Bd6+ Kg8 (26... Qxd6 27.Qxd6+ and 28.Bxf5) 27.Bxf5 + -.

A.1.c) 24... Rf5 25.Rxf5+ (25.Bxf5 Nxg6) Nxf5 26.Bxf5 Rh6 and 27.Bd6 is met with 27... Qxd6. Therefore, it is necessary to distract the queen from f5.

A.2) 22... Ke8 23.b4 Qxb4 24.Qg6+ Kf8 25.Rf1+

A.2.a) 25... Nf5 26.Bxf5 and I think that the black king won't survive.

A.2.b) 25... Rf5 26.Rxf5+ (26.Bxf5 Nxg6) Nxf5 27.Qxf5+ Ke8 (27... Kg8 28.Qe6+ Kf8 [28... Kh7 29.Bf5+ g6 30.Qxg6#] 29.Bd6+ wins the queen) 28.Qd7+ Kf8 29.Bd6+ wins.

A.3) 22... Kf8 23.Rf1+

A.3.a) 23... Ke8 24.Qf7#.

A.3.b) 23... Nf5 24.Rxf5+ Rxf5 25.Bd6+ Qxd6 25.Qxd6+ and 26.Bxf5 + -.

A.3.c) 23... Rf5 24.Bxf5 + -.

B) 21... hxg4 22.Rxe7+ Kf8 23.Re8+ Kf7 24.Qe6#.

C) 21... Re5 22.Bxe5 Kxf7 23.Bxh5+

C.1) 23... g6 24.Bxh8 + -.

C.2) 23... Ng6 24.Bxg6+ Kxg6 25.Qg4+ + -.

C.3) 23... Kf8 24.Bxg7+ (24.Qf3+ is simpler) Kxg7 25.Qg4+ (25.Qxe7+ Qxe7 26.Rxe7+ Kf6 27.Rxb7 Rxh5 28.Rb6 is slower) Kh6 (25... Kf6 26.Re6#; 25... Ng6 26.Qxg6+ Kf8 27.Qf7#; 25... Kf8 26.Rf1+ Nf5 27.Rxf5+; 25... Kh7 26.Rxe7+ Qxe7 27.Qg6#) 26.Re6+ Kh7 27.Rxe7+ Qxe7 28.Qg6#.

C.4) 23... Kg8 24.Rf1 and Black appears to be in zugzwang.

D) 21... Rd7 22.Bxd7+ Kxf7 (22... Kxd7 23.Rxe7+ Qxe7 [23... Kc8 24.Qe6#] 24.Qxe7+ Kc8 25.Bd6 + -) 23.Qe6+ Kf8 24.Rf1+ wins.

Time to post, check and play my children.

Apr-12-09  RandomVisitor: White might have a better 17th move:

click for larger view

17.Rxf7! Be5 (17...Kxe7 18.Ng5 Ke8 19.Ne6) 18.Rxe7! Qxe7 19.Bg5 .

Apr-12-09  Samagonka: Like many here, my hurried attempts to deflect the queen all turned out to be useless. Well, I should have known a Sunday puzzle could never be that easy afterall.
Premium Chessgames Member
  Jimfromprovidence: At first I wondered why black did not castle on move 19, limiting the damage to a loss of a rook vs. gain of a bishop and pawn after 20 Bxd8 Rxd8.

click for larger view

It turns out that 21 Rxf7 still works.

click for larger view

Makes for a decent derivative puzzle.

Premium Chessgames Member
  patzer2: White solves today's Sunday puzzle with the demolition 21. Rxf7!!
Apr-12-09  Eduardo Leon: I have the slight impression that yesterday's puzzle was the actual insane one. Today's one was very difficult, but, by no means insane.
Apr-12-09  WhiteRook48: thinking that aw man I missed it
then I realized it was Sunday
Apr-12-09  music: Amazing
Apr-12-09  CHESSTTCAMPS: White has a big initiative for his pawn deficit, with all pieces active on good squares, and the majors lined up on open / semi-open files directed at black's uncastled king. Significant problems for black include the immobile bishop, the pinned knight, and the queen that is tied to the defense of the knight, preventing mate. One has to think that white should win quickly with accurate play.

I was quickly attracted to the idea of 21.b4! with the idea of gaining a tempo on the diverted black queen in order to reinforce the attack on the e-file, i.e. 21.b4! Qxb4 22.Rf4(?) Qc5 23.Re4 However, after O-O (forced) 24.Rxe7 hxg4 25.Qxg4, Rg5 or Bc8 looks safe for black and he remains a pawn up.

So, a more forcing continuation is called for:

21.b4! Qxb4 22.Rxf7! Kxf7 (hxg4? 23.Rxe7+ mates in two) 23.Qe6+ and now

A. 23... Kf8 24.Rf1+ Nf5 (...Ke8 25.Qf7#) 25.Rxf5+ Rxf5 26.Qxf5+ Kg8 (Ke8 27.Qd7+ Kf8 28.Bd6+ wins quickly) 27.Qe6+ Kh7 (Kf8 28.Bd6+) 28.Bf5+ g6 29.Qxg6#

A.1 24... Rf5 24.Bxf5 (not Rxf5+?? Ke8! and white has to spend a crucial tempo to defend Qb1+) There is no good defense to 25.Bg6+. If 25...Qc4 26.Bd3+.

B. 23...Ke8 24.Qg6+ Kf8 25.Rf1+ Rf5 26.Rxf5+

At this juncture it is important to point out the reason for white's 21.b4! - with the Q still on c5, black could now force an exchange of queens with 26...Qxf5.

26...Kg8 (Nxf5 27.Qxf5+ transposes to A.) 27.Qe6+ Kh7 28.Rxh5#

B.1. 25...Nf5 26.Rxf5+ Kg8 (Rxf5 27.Qxf5+ transposes to A, while 26...Ke7 27.Qf7#) 27.Qe8+ Kh7 28.Rxh5+ Rxh5 29.Qxh5+ Kg8 30.Be6+ Kf8 31.Qf7#

Very pretty, but less complex than the tactics from the last two puzzles. There are some traps for white - I nearly missed the possibility of Qb1+ in the A.1 line.

Apr-12-09  CHESSTTCAMPS: <UnsoundHero:> wrote <The immediate 21 b4 is not as good: 21...Qxb4 22 Rxf7 Qxe1+ 23 Qxe1 Kxf7, although white's still winning with 24 Be6+.>

Agreed - I missed 22...Qxe1+ and didn't consider the possibility of a later deflection.

Premium Chessgames Member
  whiteshark: Happy Easter, everyone!
Apr-12-09  arieszodiac: Rxf7 thats only I got then ,,,,
Apr-12-09  jrbleau: Instead of 23. b4, I found 23. Bf5, which also works: 23...Rf5 24 Bd6 (the idea) Rf1 (a computer move!) 25 Rf1 Qg5 26 Qf7 Kd8 27 Be7 Qe7 28 Rd1.
Apr-12-09  Zorts: beautiful ending, got the first move.
Apr-12-09  Eduardo Leon: <jrbleau>, I found 23. Bf5 too, but with the following continuation:

23. Bf5 Rxf5

This is pretty much forced. It seems like black gets a piece and a rook for the queen, but the threats in the "e" file will force him to surrender some material.

24. Bd6 Qe5 25. Bxe5 Bc8 26. Qd6 Rh6 27. Bf6!

Renewing the threats in the "e" file. Now black must give up an exchange.

27. ... Rf1+

The only move.

28. Rxf1 Rxf6

Capturing with the pawn would let white renew his threats, so black forces the exchange of rooks.

29. Rxf6 gxf6 30. Qxf6

And, of course, this is a won endgame for white. But it requires some technique to not allow black to coordinate his bishop and knight.

Apr-12-09  EyesofBlue: I needed an Easter miracle to get this one . . . I didn't get it.
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