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Jean Laroche vs Jules Arnous de Riviere
"The Mid Knight Ride of De Riviere" (game of the day Jul-04-2009)
Match (1862), Paris
French Defense: General (C00)  ·  0-1

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 9 v010218 (minimum 6s/ply)better is 3.exd5 exd5 4.d4 Nf6 5.Nf3 Bd6 6.Bd3 Qe7+ 7.Be3 c5 = +0.30 (22 ply)= -0.43 (23 ply)better is 5.d4 f6 6.Nf3 c4 7.b3 fxe5 8.dxe5 Bc5 9.bxc4 Nge7 = -0.06 (20 ply)better is 5...d4 6.Bd3 Bd7 7.h3 Qc7 8.Qe2 Nge7 9.O-O Ng6 ⩱ -0.60 (18 ply)= +0.07 (22 ply) 9.Nbd2 b4 10.cxb4 Bxb4 11.bxc4 dxc4 12.Ba3 Rb8 13.Bxb4 = +0.38 (24 ply)= -0.47 (28 ply)better is 10.Nbd2 Be7 11.Be2 Nh6 12.O-O Rb8 13.Ba3 Bxa3 14.Rxa3 = -0.22 (25 ply) ⩱ -0.81 (24 ply)better is 11.g3 Nh6 12.Ra2 Be7 13.Bh3 O-O 14.O-O Qe8 15.Bb2 Nf5 = -0.34 (24 ply) ⩱ -1.00 (22 ply) 14...fxe5 15.fxe5 Be7 16.Ra2 O-O 17.Ba3 Bxa3 18.Nxa3 Nb3 ⩱ -0.94 (24 ply) 15.Na3 Be7 16.Nc2 O-O 17.Ba3 Bxa3 18.Rxa3 Qe7 19.Ra2 Nb3 = -0.08 (24 ply) 15...fxg4 16.Bxg4 Be7 17.f5 exf5 18.Bxf5 Bxf5 19.Rxf5 ⩱ -1.47 (23 ply)= +0.23 (23 ply)better is 16...exf5 17.Na3 Be7 18.Nc2 O-O 19.Bf3 Be6 20.Ba3 Bxa3 = -0.01 (22 ply) ⩲ +0.63 (23 ply)better is 17...Rg8 18.Nf3 Nb3 19.Ra2 Nxc1 20.Qxc1 Bh6 21.Na3 Qe7 = +0.16 (24 ply)better is 18.Rg1 a6 19.Qe2 Rb7 20.Na3 Ke7 21.Nc2 Be8 22.Ba3+ Kd8 ⩲ +0.67 (22 ply)better is 18...Rg8 19.Nb5 Rg3 20.Ra2 Nb3 21.Nxb3 cxb3 22.Qxb3 Rc8 = 0.00 (24 ply)better is 19.Rg1 Kf8 20.Bxf7 Kxf7 21.Nf3 Qh6 22.Nb5 Rbg8 23.Ng5+ ⩲ +0.52 (24 ply)= 0.00 (25 ply) 20.Rg1+ Kh8 21.Bxf7 Rxf7 22.Nf3 Qh6 23.Ra2 Rg7 24.Rxg7 = +0.29 (23 ply) 20...Rxf7 21.Nf3 Qh5 22.Ba3 Bxa3 23.Rxa3 Rg7 24.Ra2 Kh8 ⩱ -1.15 (23 ply) ⩲ +0.87 (23 ply) after 21.Nd6+ Kg8 22.Rg1+ Kh8 23.Nf3 Qh3 24.Ra2 Be8 25.Rag2 23.fxg5 Qh3 24.Ba3 Rg8 25.Rf3 Qg4 26.Nd6+ Kg7 27.Qf1 Nb7 ⩲ +0.99 (24 ply)better is 23...Kg7 24.Rg1 Nb3 25.Rxg5+ Kh8 26.Ra2 Nxc1 27.Qxc1 Qh4 = +0.11 (26 ply)better is 24.fxg5 Qh4 25.g6 hxg6 26.Rg1 Kh7 27.Bg5 Qh5 28.Rg3 ⩲ +0.62 (27 ply) 24...Nb3 25.Ra2 Nxc1 26.Rag2 Kh8 27.Rxg5 Be8 28.Qxc1 Qh4 = +0.08 (27 ply) 25.fxg5 Qg6 26.h4 Be8 27.Nxe8 Qxe8 28.g6 hxg6 29.Bh6 Rg8 ⩲ +0.92 (24 ply)= 0.00 (29 ply) after 25...Be8 26.Ba3 Rg8 27.Rxg8+ Kxg8 28.Rb1 Rxb1 29.Qxb1 28...Nxc1 29.Rxc1 Bg4 30.Rg1 a5 31.Qg3 Rb3 32.h4 Rbb8 = 0.00 (36 ply) 29.Qh3 Rxg5 30.Nf7+ Bxf7 31.Qxh6 Rg6 32.Qh4 Rbg8 33.Be3 ⩲ +0.93 (29 ply) ⩱ -1.01 (26 ply) 30.Qxg5 Qxg5 31.fxg5 h6 32.h4 hxg5 33.hxg5 Rg8 34.Nb7 ⩱ -0.81 (25 ply) ∓ -1.82 (23 ply) 32.Rf4 Qh5 33.Nf7+ Qxf7 34.Qxg4 Nd2 35.Qh4 Rb1+ 36.Kg2 ∓ -2.05 (22 ply) 32...Qxf7 33.Qxg4 Nd2 34.Rf4 Ne4 35.Qh4 Nxc3 36.Rf2 Rb1+ -+ -3.42 (25 ply) ⩱ -0.74 (25 ply) 36.Bd6 Re8 37.Rf2 Nc1 38.Kg2 Kg6 39.h4 Kh5 40.Kg3 a6 ⩱ -0.85 (26 ply) ∓ -2.03 (26 ply) 37...Nd2 38.hxg4 Kg6 39.Bb4 Nf3 40.gxh5+ Kxh5 41.Rf1 Kg4 ∓ -2.15 (27 ply) 38.Rg2 a5 39.Kh2 Rh6 40.Bb2 Kg6 41.Rf2 Kg5 42.Ba3 h4 ⩱ -0.83 (29 ply)-+ -3.72 (25 ply)-+ mate-in-21 after 49...Nxf2 50.Kxf2 Ke4 51.Ke2 a5 52.Kd2 Kf3 53.Kd153.Bh4 c2 54.Bg5 Nxd4 55.Bh6 Nf3 56.Kh5 d4 57.Kg6 d3 -+ mate-in-140-1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

Annotations by Stockfish (Computer).      [35437 more games annotated by Stockfish]

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Kibitzer's Corner
Nov-27-07  schnarre: Black's Knight was more effective than White's Bishop in this one! Very good finish by Black.
Jul-04-09  MostlyAverageJoe: Allright, why did white offer a knight with 32.Nf7+ and why did black refuse to take it?
Jul-04-09
Premium Chessgames Member
  Phony Benoni: I suppose the point of <32.Nf7+> is 32...Qxf7 33.Qxg4. Perhaps White just assumed Black would take the knight, or wanted to be fancy. People do stuff like that.

Black's refusal is much easier to understand, as he wins the g-pawn with <32...Kg7>.

Jul-04-09  MostlyAverageJoe: <Phony Benoni> I think you're right. after <<32.Nf7+> 32...Qxf7 33.Qxg4.>:


click for larger view

it would appear that white is OK. However, he's definitely not. There is a winning move for the black in the position above. While the first move is fairly obvious, the difficulty of the variants is comparable to a Sat-level puzzle difficulty.

MAJ, in a Hiarcs-assisted search for alternate puzzles.

Jul-04-09  backrank: This is certainly a nice game, and the most interesting thing about it is the fact that it looks rather modern, while it has already been played in 1862. Black seems to castle right into a dangerous attack, which he, however, is able to refute by tactical means. After having done that, his positional advantage leads to a winning endgame.

However, I wonder what's so special about the game that it has been chosen for the game of the day?

Jul-04-09  levizki: Probably the pun-ability, or however you want call that.

I just found out that Paul Revere went for his famous ride on borrowed horse. So maybe the pun is not fully adequate here.

But, however, he used a horse (Knight), and indeed it was night. And today is 4th of july, USA Independence Day... More than enough to have fun with the pun.

Jul-04-09  RandomVisitor: 37...Nxd4! 38.cxd4 Rb3 39.Bc5 Rxh3+ 40.Kg2 h4 is possibly winning for black.
Jul-04-09  ROO.BOOKAROO: What was the point of 29. Ba3? Taking the bishop away from the action on the kingside is not clear. Why not for instance 29. Be3 instead?
Also 51. Kg3? giving the black knight an easy check with 51 ...Ne2+. Why not instead 51. Kf1, attempting to block the advance of the passed c4 pawn?
Jul-04-09  RandomVisitor: <ROO.BOOKAROO>How about 29.Qh3!? Rxg5 30.Nf7+ Bxf7 31.Qxh6 and an unclear game.
Jul-04-09  RandomVisitor: Rybka likes 15...fxg4 16.Bxg4 Be7 and a black advantage.
Jul-04-09  RandomVisitor: 14...fxe5 15.fxe5 Be7 favors black
Jul-04-09  randomsac: Nice finish. Good pun. Happy 4th of July!
Jul-04-09  BISHOP TAL: Some players say the french is boring, but I think playing the same open over and over is boring, cool game. I was wondering chessgames.com at the top of the board is in the red white and blue with stars and stripes I was wondering is it like that worldwide or is just like that in the states anybody outside america could answer this one.
Jul-04-09  BISHOP TAL: I guess that was kind of a dumb question it wouldnt be lol.I like Monty Newborns quate of the day GMs used to come to laugh, now they come to watch,referring to 1977 in the future thet will come to learn. Rbyka Fritz 11 shredder.
Jul-04-09  WhiteRook48: good pun! Hilariously funny!
Jul-04-09  TheaN: After 49.Bxf2:


click for larger view

Isn't Black winning this more thematic by mere triangulation?

<49....Nxf2 50.Kxf2 Kf4 51.a5 a6 52.Ke2 Ke4 53.Kd2 Kf3 > etcetera:


click for larger view

What am I missing? Going into the piece endgame might give White drawing chances, although, seeing the weakness of the a-pawn, it didn't.

Jul-04-09  TheaN: Just confirmed it, and even simpler is of course <49....Nxf2 50.Kxf2 Ke4!> as opposition is no issue: <51.Ke2 (a5 Kd3 )>:


click for larger view

<51....a5 > and the whole Queenside is completely shut for White.

A nice endgame theme is the <one-step tempoloss> technique, or <tempoloss> for short. This theme arises in the above position with the a-pawn on a3:


click for larger view

Black should watch out what to play, as tempi are the issue. Space-grabbing with 51....a5?? is futile and loses half a point: <52.a4 Kf4 53.Kf2 Ke4 54.Ke2 => on the other hand, <51....a6! 52.a4 a5 53.Kd2 Kf3 > and Black will once again break in.

Jul-04-09  DarthStapler: What was white even thinking in that opening?
Jul-06-09  kevin86: White will be forced to give up the bishop for the pawn and black will win with the extra piece forcing his remaining pawns through.

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