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Louis Charles Mahe De La Bourdonnais vs Alexander McDonnell
London (1834), rd 10
Queen's Gambit Accepted: Old Variation (D20)  ·  1-0
ANALYSIS [x]

FEN COPIED

Annotations by Paul Morphy.      [30 more games annotated by Morphy]

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Kibitzer's Corner
May-20-03  Rookpawn: In most other QGA games in this match, la Bourdonnais played 4. Bxc4, accepting the isolated pawn. Though White possesses an IQP in that variation, he has enough piece activity to compensate.
Sep-26-04
Premium Chessgames Member
  Knight13: 9... O-O-O would have be better than 9... Rd8. Can somebody know why the knight didn't take the a7 pawn from move 14 to 18?
Oct-01-04  PizzatheHut: <Can somebody know why the knight didn't take the a7 pawn from move 14 to 18?> If white took the a7 pawn during those moves, Black would have responded with ...Nxa7 and White loses the knight.
Jun-26-05
Premium Chessgames Member
  Knight13: <<Can somebody know why the knight didn't take the a7 pawn from move 14 to 18?> If white took the a7 pawn during those moves, Black would have responded with ...Nxa7 and White loses the knight.> Man. It's pityful why I posted that comment. I guess I was bad at chess.
Apr-02-06  rtachessbud: Is there a problem on move 10 for white Kc2? It looks as good as the move they played, Ke1
Apr-02-06
Premium Chessgames Member
  Pawn and Two: <rtahessbud: Is there a problem on move 10 for white Kc2?>

rtachessbud, the problem with 10.Kc2? is 10...Nb4+!

Sep-23-07
Premium Chessgames Member
  nimh: Rybka 2.4 mp, AMD X2 2.01GHz, 10 min per move, threshold 0.25.

De La Bourdonnais 4 mistakes:
7.Bd2 -0.86 (7.Nf3 -0.41)
9.Nc3 -0.14 (9.e4 0.37)
18.Nbd4 0.17 (18.g3 1.20)
36.Ke5 10.07 (16.Kd5 12.80)

McDonnell 11 mistakes:
7...Bc5 -0.22 (7...f6 -0.86)
8...h6 0.37 (8...f6 -0.19)
9...Rd8 0.42 (9...0-0-0 -0.14)
13...Rd7 0.90 (13...Nd5 0.46)
15...0-0 1.13 (15...a6 0.82)
18...Nxd4+ 1.16 (18...Nxf4+ 0.17)
29...g6 2.37 (29...Nc8 1.58)
32...Ke6 4.86 (32...h5 2.55)
34...Kd6 8.09 (34...Kf6 5.35)
35...Kc7 12.57 (35...b5 7.89)
43...hxg5 43.83 (43...Ke5 23.83)

Oct-11-07
Premium Chessgames Member
  nimh: Correction, new threshold 0.33.

De La Bourdonnais 4 mistakes:
7.Bd2 -0.86 (7.Nf3 -0.41)
9.Nc3 -0.14 (9.e4 0.37)
18.Nbd4 0.17 (18.g3 1.20)
36.Ke5 10.07 (16.Kd5 12.80)

McDonnell 10 mistakes:
7...Bc5 -0.22 (7...f6 -0.86)
8...h6 0.37 (8...f6 -0.19)
9...Rd8 0.42 (9...0-0-0 -0.14)
13...Rd7 0.90 (13...Nd5 0.46)
18...Nxd4+ 1.16 (18...Nxf4+ 0.17)
29...g6 2.37 (29...Nc8 1.58)
32...Ke6 4.86 (32...h5 2.55)
34...Kd6 8.09 (34...Kf6 5.35)
35...Kc7 12.57 (35...b5 7.89)
43...hxg5 43.83 (43...Ke5 23.83)

Mar-18-09  just a kid: Morphy says this was boring and nothing to omment on.Well he commented and La Bourdonnais won.Better safe then sorry they say.
Feb-01-12
Premium Chessgames Member
  Knight13: If McDonnell didn't play 17... Nd5 to prevent 18. Nd4, why did he play it? To "get the knight in" before e4 I suppose. Anyway, 18. g3 or a3 is probably the correct move Morphy had in mind so White can play e4 (or a3 first) and force the knight to an inferior square.
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