Challenge 1225 / 1747

La Bourdonnais–McDonnell: both engines agree, one move

London m5 1834. At move 49 there is exactly one move for Black, and both engines agree on it, nothing else comes close. Find it, then beat Alexander McDonnell from there.

McDonnell, Alexander – De Labourdonnais, Louis
London m5 1834 · 0-1
You play Black
Portrait of Alexander McDonnell

Alexander McDonnell

“The Belfast Champion”
Romantic Peak 2480
  • Opponent: Alexander McDonnell
  • Difficulty: FIDE Master
  • Goal: Beat the personality.
  • Reward: Louis-Charles de La Bourdonnais challenge · London m5 1834. At move 49 there is exactly one move for Black, and both engines agree on it, nothing else comes close. Find it, then beat Alexander McDonnell from there.
Collections
  • The Executioner 0/5
  • Second Chances 0/5
  • Technique 0/5
  • Only Move 0/5
  • The Karpov File 0/3
  • The Tal File 0/3
  • The Fischer File 0/3
  • Across the Board from Kortschnoj 0/3