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Aleksandr Karpatchev vs Remel Oney
5th Istanbul Festival (2006), Istanbul TUR, rd 2, Aug-31
Caro-Kann Defense: General (B10)  ·  1-0


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Kibitzer's Corner
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Premium Chessgames Member
  Oxspawn: Well, I did the Wednesday puzzle! Truth told it is fairly easy to see, so one can only assume that R Oney had been out on the razzle in Istanbul (one of the world's great cities) and had too much raki. The night before puinished by the knight after. What's this nonsense about points? I award myself a cup of coffee if I get it and a cup of coffee if I don't. Who could want more?
Jul-11-12  dfcx: Playing against crafty, the following line of defense came up, 10. Nxd5! Qxd2
11. Nc7+ Kd8
12. Rxd2 Bh6

Not a great advantage as I thought for white.

Jul-11-12  YoungEd: I wish you all could hear the little bit of fanfare that goes off in my head when I actually get one of these puzzles correct!
Jul-11-12  James D Flynn: 10.Nxd5 Qxd2 11.Nc7+ Kd8 12.Rxd2 e5 13.dxe5+ Kxc7(if Nd7 14.e6 Rb8 15.exd7 Bxd7 16.Ne6+ Kc8 and Nxg7 or 13..Bd7 14.e6 Kc8 15.exd7+ Nxd7 16.Nxa8) 14.exf6+ Kb6 15.fxg7 Rg8 16.Bc4 Rxg7 18.Bh6 And White wins the exchange plus he is now 2 pawns up.
Premium Chessgames Member
  Marmot PFL: Easiest problem of the week. Nd5 in positions like this is too well known.
Premium Chessgames Member
  Oxspawn: <YoungEd> It goes off in my 'ead as well, but only when I get it right (or not too wrong myself). No trumpets yet when anyone else does it - but a fanfare is better than pointless points, don't you think?
Jul-11-12  M.Hassan: <sevenseaman: M.Hassan I see that my line and yours are same. The deviation comes at the 15th move. 15.fxe7 Bf6
16.Bg5 Bxg5
17.Nxg5 Nd7>

<You have reasons to go for the N rather than the B which is accompanied by a tempo of the threat to the R?>

Actually, this was what I thought that an attack to the Rook may be made with the aid of the pawn on e7, but after seeing your note, I went through more moves and realized that the pawn on the 7th rank will be taken anyway (Chessmaster also thinks 15.fxg7 is preferred to 15.fxe7) Thanks for your note and interest.

Premium Chessgames Member
  doubledrooks: White takes advantage of the Black queen's looseness with 10. Nxd5 and now:

a. 10...Qxd2 11. Nc7+ Kd7 12. Rxd2

a.1 12...e5 13. dxe5+ Kxc7 14. exf6+ Kb6 15. fxg7

a.2 12...Bh6 13. Bxh6 Kxc7 14. Bg7 Re8 15. Bxf6 and White has won two pawns

Jul-11-12  Zatrikion: <dfcx: Playing against crafty, the following line of defense came up, 10. Nxd5! Qxd2 11. Nc7+ Kd8
12. Rxd2 Bh6
Not a great advantage as I thought for white. >

Wow that is the best defense. Damned machines.
I guess the best for white after this response must be:

13. Bxh6 Kxc7
14. Bg7 Re8
15. Bxf6
and white is up two pawns. However, still not very easy for white to win. Very good!

Premium Chessgames Member
  kevin86: White takes advantage of the unguarded queen to go after black's rook.

Often this kind of attack is unsound as the rook hunt takes valuable time and allows the opponent to counterattack.Here,black has moved many pawns and the pieces are in no position to strike THIS attack by white is sound.

Jul-11-12  The Last Straw: I got 10 Nxd5 Qxd2 11 Nc7+ K(any) 12 Rxd2 Bh6 13 Bxh6 Kxc7 14 Bg7 R(g or e)8 15 Bxf6 after 4 or some minutes.
Jul-11-12  The Last Straw: What a far-flung queen!
Jul-11-12  hrobert5: Zatrikion: 10. Nb5 and that's it. Double threat from white (Nc7+ and R is lost and secondly black Queen threatened)

I agree, that's the line I took. It gives me the option of Nc7 OR Nd6; Black may double cross us and decline the (eventual) Queen exchange. And, if Black does indeed respond to check by moving Kd8, Nf7+ = K-R fork.

Premium Chessgames Member
  chrisowen: Synod in council a c3 d5 c7 has my vote it e6 in too slow for pirc

and f6 simply it falls to white in gaining ground, nail in the

coffins qua5 key it e6 in bishop f4 i should bring to yours had

either in dxe or nf6 manage it earning rites of passage in blockade

tainted love triangle in wedge cant withstand castling queen on the

side it allow in d5 exactly what is knight doing?

Jul-11-12  trguitar: White's reply to 12...Bh6 would be Bg3!! A full piece up and Black's king exposed.
Jul-11-12  dragon player: This puzzle is easy:

10.Nxd5 Qxd2

You can move the queen to any other square you like, but 11.Nc7+ will come anyway.

11.Nc7+ Kd8
12.Rxd2 e5
13.dxe5 Kxc7
14.exf6+ Kb6

with a nice amount of pawns up.

Time to check.


He instantly resigned. Guess I'm right.


Premium Chessgames Member
  gars: An easy one-mover, I'd guess. And I guessed it right.
Jul-11-12  TheBish: A Karpatchev vs R Oney, 2006

White to play (10.?) "Medium/Easy"

This is one of my favorite tactics, made possible by the undefended black queen. Most tournament players are aware of this discovered attack trick, but it's fun when you can pull it off! This is more common when Black has castled, when after Nxd5 Qxd2, White throws in the intermediate Nxe7+ or Nxf6+. Another reason to play Kc1-b1 after castling queenside; otherwise, after ...Qxd2 White would be in check, and losing a piece!

10. Nxd5! Qxd2

Not a whole lot of choice here, as the queen was hanging; after 10...Qd8 11. Nc7+ wins the rook. Another option is 10...Nxd5 11. Qxa5 Nxf4, with two pieces for the queen and pawn.

11. Nc7+ Kd8 12. Rxd2 Na6 13. Bxa6 with an easy win.

Jul-11-12  bachbeet: Must be a week of "subtle gains." Usually the puzzles are about getting a mate in a tricky way. So, I saw the knight move to d5 but discarded it because it didn't seem to gain much. But, being Subtle Gains week, that really was the solution.
Jul-11-12  scormus: 10 Nxd5. And are we already at Wednesday? Two monumentally anticlimactic POTDs in in two days.

I remember a similar tactic I made in a club match years ago, but in that position all it yielded was a pawn. Then later that evening my match captain instructed me to offer a draw so we'd win the match.

No, today's puzzle doesn't do anything special for me:(

Premium Chessgames Member
  Gypsy: 10.<Nd5> Qxd2 11.Nc7+ Kd7 12.Rxd2 e5 13.dxe5+ Kxc7 14.exf6+ Kb6 15.fxg7 Rg8 16.Be5 Be6 17.Ng5...

White is already 3 pawns up Black position is ruined.

Premium Chessgames Member
  Moonwalker: My eyes were drawn to Nb5 first as it gives the knight more options on the second jump. Next I looked at Nxd5 to grab a pawn on the way to the trapped rook on a8.

Kept looking for something better but couldn't find anything. Is it the week of moderate gains?

Jul-11-12  hierophante: <<dfcx: Playing against crafty, the following line of defense came up, 10. Nxd5! Qxd2 11. Nc7+ Kd8 12. Rxd2 Bh6
Not a great advantage as I thought for white. >

12...Bh6 is clever but insufficient. White's best is 13. Ne6+ then Bh6, with a two pawn advantage an no positional defects.

Premium Chessgames Member
  Gypsy: <Playing against crafty, the following line of defense came up, 10. Nxd5! Qxd2 11. Nc7+ Kd8 12. Rxd2 Bh6>

13.Bxh6 Kxc7 14.Bg7 Re8 15.Bxf6...

Black has a 2 pawn deficit and a completely ruined position; e.g.,

15...Nd7 16.Be5+ Nxe5 17.Nxe5...

Premium Chessgames Member
  CHESSTTCAMPS: In this opening position, all starting material is still on the board, but black's position shows an excess of pawn moves and a deficit of solid developing moves. The lineup of queens on the d2-a5 diagonal and the vulnerable c7 suggests a type of combination that scores many points in tournament chess and in blitz: a discovered attack followed by an intermezzo check that wins material. In this case, there is a defensive trick that requires some analysis.


A stock combination that should score a full point.

A) 10... Qxd2 11.Nc7+ Kd7 (or d8) 12.Rxd2 e5 (the only trick to capture the invading knight) 13.dxe5+ Kxc7 14.exf6+ Kb6 15.fxg7 Rg8 16.Be5 leaves white up 3 pawns, with the protected g7 pawn worth a lot more.

A.1) 11... Kf7 12.Rxd2 Nd7 13.Nxa8 (up R+P) e5 14.dxe5 fxd5 15.Be3 and the Na8 can be extracted at c7 or b6 (after Bxa7), with white a full rook up.

B) 10... Qd8 11.Nc7+ Kf7 12.Nxa8 (up R+P) and the knight can escape on c7.

C) 10... Nxd5 11.Qxa5 Nxf4 12.Qc7 and one of the loose black minor pieces (f4, c8, g7) must drop off, winning Q+P for a minor piece.

The consecutive discovered checks in line A is the key. Time for review...

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