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John Trevelyan vs Florian Jenni
15th European Team Championship (2005), rd 1, Jul-30
Spanish Game: Exchange Variation. General (C68)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-10-07  MikeChesss: Why didn't White allow the rook to be taken instead of mate? Did he just give up?
Jul-10-07  znprdx: this looks like an obvious time pressure scramble - in which they went past time control to an almost accidental mate!! After all 41.Bxc5 almost might have worked except that Black gets out with the Knight check retreat. Anyway a fit punishment for playing the masochistic Ruy Lopez.

Jul-10-07  Marmot PFL: It's wasy to see that Ra3 is mate if the white rook is diverted. I didn't see that pattern right away and wasted a couple minutes on other moves. For those who can't believe white overlooked this, first off white is not a GM, secondly most players don't look for mates in the ending and lastly he at least saw the mate threat after c5 but considered Ra2 an adequate defence (which he could have played earlier). Bc2+ is not such an obvious move.
Jul-10-07  Halldor: I decided first to try the most exotic move I could find (42... Bc2+) before working seriously on the position, but to my surprise it worked..., LOL.
Jul-10-07  rover: I'm sure white saw the mate after Rxc2 but realized that Kxc2 Rxa2+ --- Rxh2 loses too so he allowed a pretty mate.
Jul-10-07
Premium Chessgames Member
  gawain: Saw it quickly. Interesting mating position. Once again a heavy piece sitting at the King's elbow, hoping to help him, instead proves a fatal hindrance.
Jul-10-07  Iamsuperman: If white refuses mate he's stuck with a king up against the 1st rank, trapped in by the rook (44.Kb3 or 44.Kd3 both lead to mate).

Being down the exchange is already a shot against him but also having a hampered in king in the endgame, winning would be a long shot.

Jul-10-07  Crowaholic: Took me about 10 secs. Unusual and interesting arabian mate threat, White can escape but loses the exchange and the h pawn. The bishop sac has a triple function: Either it deflects the king, hanging the rook, or it deflects the rook and makes the same rook block a vital flight square for the king. Nice!

Poor defence by Jenni - what was he thinking? If losing the equivalent of 3 pawns (plus getting a horrible endgame position) is not what you want, then just resign. (I don't think that White has notable drawing chances after 43. Kxc2 anyway. Black would have to make an incredible blunder for this to happen, like hanging the rook or stalemating.

Jul-10-07  Crowaholic: By the way: Black does not mate so easily, as some have claimed, after 43. Kxc2 Rxa2+ 44. Kd1 Ne3+ 45. Ke1 Kc4, White has 46. Ne5+ Kxc3 47. Bxc5 with quite a road ahead for Black.
Jul-10-07  tatarch: I agree Crow-- black should win, but if I was white I'd probably make him work for it. But then again who knows, maybe white just felt abused after this game and wanted to go get a drink.
Jul-10-07
Premium Chessgames Member
  beenthere240: No one has claimed that black mates easily after 43. Kxc2. It's just a hopeless game, down the exchange and a pawn with a king stuck on the back rank, a probably indefensible g pawn and the prospect of a h pawn passer.
Jul-10-07
Premium Chessgames Member
  kevin86: The key move had a few twists. I was looking for an Arabian mate and as it was-white stumbled into it. The king can capture,but his rook is lost,as will be the coming endgame.

At first,I was looking to divert the rook to mate with the knight;but with that not feasable,I reversed my strategy to mate with the rook. Black had already threatened the mate at a3-after blocking the adverse bishop the rook came over to stop it-so the game itself was a clue.

I guess white knew that he was lost and dove into a quick and picturesque death.

Jul-10-07  Crowaholic: <beenthere240: No one has claimed that black mates easily after 43. Kxc2.>

Oops, I misread that. Shame on me. :-(

Jul-10-07  MiCrooks: Seems like 41. Ng6?? was the big blunder. White appears to be okay if he challenges the rook immediately with Ra2.
Jul-10-07  MiCrooks: I dropped 41. Ra2 into the computer to confirm that White is fine so Ng6?? was the big blunder. Also interesting is that an immediate Bd5 was somewhat better than the c5 played in the game. And after c5 playing Bxc5 is better than the game continuation. Leads to a position that is still probably hopeless, but a piece down for two pawns is better than down the exchange AND a pawn.
Jul-10-07
Premium Chessgames Member
  playground player: I just thought Bc2+ was the best move, trading the Bishop for a Rook and being in the driver's seat for endgame. Never expected White to walk into the mate by playing RxBc2.
Jul-10-07  pggarner: It's amazing how many of the White king's would-be flight squares are covered by the Black knight; no matter where he turns, he's hemmed in by that stinking knight.
Jul-10-07  Justawoodpusher: Saw this one faster than yesterdays...
Jul-10-07  newton296: the endgame is a trivial win of kxB so he saves himself the pain and gets mated on the spot. Amazing how the rook is diverted to the kings only flight square. the knight is just a killer here.
Jul-10-07  ruzon: I did not see Ra3#, but I did see that White spent too much time dinking around with his Knights on the Kingside, leaving his pieces out of position when he needed them.
Jul-10-07
Premium Chessgames Member
  fm avari viraf: Being one an a half stars, everybody looks happy as the answer is just simple like a sweet dimple. Of course, if 43.Kxc2 the end game would be agonising for White so matter shorten it & play 43.Rxc2.
Jul-10-07  vibes43: I discounted Bc2+ early in my search and didn't give it a second look. I saw that white K could escape and overlooked the other benifits of the solution. Then spent way too much time on other "possibilites" and trying to pass the c pawn.
Jul-10-07  desiobu: I actually found it, but assumed white would allow the loss of his rook to prevent mate, so I tried to find something else.
Jul-10-07  fyad reject: yes i was confused as well

the solution only forces loss of the exchange so i spent a long time looking for something better

Jul-10-07  RandomVisitor: 36...Rxa4 might have been winning for black:

1: John Trevelyan - Florian Jenni, 15th European Team Championship 2005


click for larger view

Analysis by Rybka 2.3.2a mp:

(26-ply)
1. (-0.97): 37.cxb4 Nb5 38.Ng2 c3 39.Ne3 Rxb4 40.Nc2 Ra4 41.Ne3 Kc5 42.Nd1 Nd4 43.Rxe4 fxe4

2. (-1.16): 37.Kb2 Kd5 38.Re1 c5 39.Rd1+ Bd3 40.Ng2 Ra7 41.cxb4 Ne4 42.Ne1 Nxf6 43.Nxd3 cxd3

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