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Louis Charles Mahe De La Bourdonnais vs Alexander McDonnell
London m4 ;HCL 18 (1834), 02, rd 48
Queen's Gambit Accepted: Old Variation (D20)  ·  1/2-1/2


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Kibitzer's Corner
Premium Chessgames Member
  Chessical: An alternative try for De Labourdonnais was: <69...Bd7>; but even here it seems that Macdonnell can hold the position even after dropping a pawn:

<70.Ba5> (70.Bc1?! Ke2 71.Kg1 Kd3) 70...Kxf4 71.Bc7 Be6 72.Bd6 b4 73.Bxb4 Kxe5 74.Bc3+ Kf4 75.Bd4 Kf3 76.Bc3 Ke4 77.Kg3 Bf5 78.Bf6 Kd3 79.Bc3

May-18-06  sneaky pete: 73... b4 was ill timed (leads to the loss of a vital tempo on move 77). De La Bourdonnais suggested 73... Bd7 74.Kh2 Bc8 75.Kg3 b4 winning (76.axb4 a3 77.bxa3 Kxc3 78.b5 Kd2 79.b6 c3 80.e6 c2 81.e7 c1Q 82.e8Q Qg1+ and # next move).
Premium Chessgames Member
  nimh: Rybka 2.4 mp, AMD X2 2.01GHz, 10 min per move, threshold 0.33.

De La Bourdonnais 8 mistakes:
16.Bd2 -0.91 (16.Nxd6 -0.35)
25.Kh2 0.00 (25.exf6 1.69)
25.hxg6+ 0.66 (35.Rxd3 3.25)
37.Rg2 0.00 (37.Rg3 0.72)
53.Qa7+ -0.40 (53.Qf6+ 3.63)
61.Qe2 -0.48 (61.Qf2 0.00)
62.Qf2 -1.49 (62.Bf2 -0.53)
66.Kg2 -3.23 (66.f5 -1.60)

McDonnell 8 mistakes:
20...Qd5 -0.19 (20...Bd3 -0.80)
24...f5 1.69 (24...Bd3 -0.05)
26...g6 0.28 (26...Rg6 -0.18)
28...Be4 0.48 (28...Rf8 0.07)
33...Bd3 3.01 (33...Qb7 0.45)
52...Kf7 3.63 (52...Kh5 -0.38)
73...b4 -1.10 (73...Bd7 -2.50)
77...Bd5 -0.04 (77...Bc8 -1.27)

Premium Chessgames Member
  Knight13: You can tell they fought fiercely in a drawish game. :-) 66. f5 Bxf5 67. Bf4 must be what nimh's Rybka is referring to.
Premium Chessgames Member
  Knight13: I like 12...b5 13. Bc2 Bb7 or ...Nc4 more.
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