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Andrei Vasilyevich Kovalev vs Hrvoje Stevic
36th Olympiad (2004), Calvia ESP, rd 10, Oct-25
Philidor Defense: General (C41)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Nov-21-11  lost in space: 40. Qxg7 Bxg7 41. Rxe8+ Bf8 42. Rxf8#

I love Mondays!

Nov-21-11  sevenseaman: Just a trio of forcing moves;

40. Qxg7+ Bxh7 41. Rxe8+ Bf8 42. Rxf8#

Beware a non-forcing move like 40. Nxg7 allows 40...Rx1#

Nov-21-11
Premium Chessgames Member
  dzechiel: White to move (40?). Material even. "Very Easy."

Seeing that black threatens 40...Qxg2# as well as 40...Rxe1#, some players would resign. But here Kovalev is resourceful, and finds...

40 Qxg7+

About as forcing as a move can get.

40...Bxg7 41 Rxe8+

Again, forcing...

41...Bf8 42 Rxf8#

Time to check and see when black resigned.

Nov-21-11
Premium Chessgames Member
  dzechiel: So, I started to review the earlier kibitzing, and what do I find? A post from me about four years ago. I did not recall seeing this position before, but ChessGames must be recycling the easy ones...
Nov-21-11  rilkefan: <<Tired Tim>: This puzzle will appear again in 2015, when black will be able to claim a draw for 3-fold repitition>

Excellent.

Nov-21-11  stacase: 40 Qxg7+ is the only move that staves off Black's double mating attack. And it saves the day, how nice.
Nov-21-11  morfishine: White gets in his attack first with 40.Qxg7+ Bxg7 41.Rxe8+ Bf8 42.Rxf8 mate

IMO the striking things about this game are (1) both players are Grandmasters & (2) it wasn't blitz

Nov-21-11  cocker: Very nice finish, whether seen before or not.
Nov-21-11  Nullifidian: 40. ♕xg7+ ♗xg7 41. ♖xe8+ ♗f8 42. ♖xf8#
Nov-21-11  crippledpawn: A simple sackajaweea, Qxg7+, Bxg7, Rxe8+, Bf8, Rxf8## If your going to sack a Queen, don't move until you see it.
Nov-21-11
Premium Chessgames Member
  HeMateMe: ^^See above for Lewis and Clark reference.
Nov-21-11  CHESSTTCAMPS: Rerun or not, this is a good Monday puzzle. Touch the wrong piece and you lose!
Nov-21-11  zb2cr: Thought I remembered this one. It was previously given as a puzzle on Sep. 17th, 2007.

Black threatens mate by both ... Qxg2# and ... Rxe1#. Therefore White has to strike first and fast. Luckily, White has a forced mate in 3 with 40. Qxg7+, Bxg7; 41. Rxe8+, Bf8; 42. Rxf8#.

Nov-21-11  dufferps: One of the few where I actually saw to the finish from the "puzzle" move on.

An example of "the best defense is an offense."

Nov-21-11
Premium Chessgames Member
  agb2002: White has a knight for a bishop.

Black threatens 40... Rxe8# and 40... Qxg2#.

If the bishop were on another square White would deliver mate with Rxe8+. Hence, 40.Qxg7+ Bxg7 41.Rxe8+ Bf8 42.Rxf8#.

Nov-21-11  LIFE Master AJ: <<Nov-21-11 morfishine: White gets in his attack first with 40.Qxg7+ Bxg7 41.Rxe8+ Bf8 42.Rxf8 mate.

IMO the striking things about this game are (1) both players are Grandmasters & (2) it wasn't blitz.>>

Some players - like GM Walter Shawn Browne - were notorious for playing the last few moves of the game under tremendous time pressure. I am not saying for sure, but maybe that was the case here.

Nov-21-11  sevenseaman: <<CHESSTTCAMPS>: Rerun or not, this is a good Monday puzzle. Touch the wrong piece and you lose!>

What is this rule about touching a wrong piece. Exceptions? How about White saying 'mate in 3' and it then turns out to be a mate in 2 or 4? And what if there is disparity in the move you write in the score sheet and the one you actually make?

Nov-21-11
Premium Chessgames Member
  gawain: Like <Dzechiel> I did not remember having seen this before. But my post from 2007 is there to prove that I did.

Last night my wife and I saw Manhattan Transfer in concert. I commented to her "they sure give a great live performance don't they?" She replied "Don't you remember seeing them in 1993?"

Hmmm.

Nov-21-11  abuzic: <33.exd5> opens the diagonal for black, 33.Ne3 threatening f5 keeps equality.

<34.Rxd5?> white should take with the B 34.Bxd5.

<36.Nh4??> already white is under pressure, for example:

A.36.Ne3 Bxg2
37.Nxg2 Nexf4
38.Qxg7+

<38.Nhxf4? Rxe1+ 39.Bxe1 Nxf4 40.c4 Bxc3 41.Qf2 Nd3 42.Qf1 Nxf1 43.Qxf1 c2>

38...Bxg7 39.Rxe8+ Nf8 40.Nhxf4 Qf3.=============

B.36.Nxg7 Bxg2+
37.Kg1 Nd4.===========

C.36.Kg1 Bxg2
37.Nhxg7

<37.c4 Nexf4 (threatening ...Nh3#) 38.Qxg7+ Bxg7 39.Rxe8+ Nf8 40.Nxf4 Bc6>

37...Bh3
38.Nxe8+ Bg7
39.c3 bxc3
40.Qf2 Bxf5
41.Nxg7 Kxg7.=========

D.36.Bxd5 Qxd5+
37.Kg1 Qxf5 (or 37...Nexf4 also wins).===========

E.36.Nh4 Nxh4

<36...Bxg2+ 37.Nxg2 Nexf4

<(37...c4? 38.f5

<[38.bxc4? Nexf4

<38...♘gxf4 39.♗xf4 ♕f3

<((39...♘xf4?? as in game 40.♕xg7+ ♖xg7 41.♖xe8+ ♗f8 42.♖xf8#))>>

39...Qxg7+ 40.Bxg7 Rxe8+ 41.Be8 Nhxf4 42.Qf3]>

38...Qf3 39.fxe6 Rxe6 40.Qd4 cxb3 41.cxb3 Qxh5 42.Qc4 white is not so bad)>

38. Qxg7+ Bxg7 39.Rxe8+ Nf8 40.Nhxf4 Qf3>

37.Bxh4 Bxg2+
38.Kg1 Bh1
39.c3 bxc3
40.Qf2 Nd4
41.Rd8.

Nov-21-11
Premium Chessgames Member
  kevin86: White is desperate as black threatens two mates on the move. He turns the tables by diverting the black bishop from shielding a check.

40 ♕xg7+ ♗xg7 41 ♖xe8+ ♗f8 42 ♖xf8#.

Nov-21-11  Marmot PFL: Looks like the ending of a blitz game, which it probably was by move 40.
Nov-21-11
Premium Chessgames Member
  chrisowen: The swamp it thing rears its ugly head qxg7 bxg7 rxe8+ anthemic demolition of black and white thinking abouts my baby tuck him in up and under I it is like a6 c5 e6 hi ho thematic silver tables are turned after d5 but in the candle snuffed out.
Nov-21-11  M.Hassan: "Very Easy" White to play 40.?
Whoever turn is can checkmate
Black.....Qxg2#
But it is White's move:
40.Qxg7+ Bxg7
41.Rxe8+ Bf8
42.Rxf8#
Nov-21-11  morfishine: <LIFE Master AJ> On your comment: <Some players - like GM Walter Shawn Browne - were notorious for playing the last few moves of the game under tremendous time pressure...> If thats the case, then we need to give them <Patriot>'s number: he can give them some lessons on time management! :)
Nov-21-11  LIFE Master AJ: << Nov-21-11 CHESSTTCAMPS: Rerun or not, this is a good Monday puzzle. Touch the wrong piece and you lose! >>

<<I could not have said it any better myself! <<<<<<>>>>> >>

BTW, I imagine the "average user" here has only been here for ... say ... 2-3 years, at the most. Therefore, to "recycle" some of the older puzzles is OK, because most of the "target audience" will not have seen (or even remembered! see <dzechiel>'s earlier post) this puzzle before.

Its also a true "puzzle" type of position ... everything hangs in a precarious balance ... in such situations, its normally a huge <(i.e., decisive)> advantage to be "on the move," ... or to have the option of "the first strike."

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