Challenge 1333 / 1747

Spielmann–Bogoljubow: one move holds everything together

Bad Sliac 1932. At move 43 there is exactly one move for Black, and both engines agree on it, nothing else comes close. Find it, then beat Efim Bogoljubow from there.

Bogoljubow, Efim – Spielmann, Rudolf
Bad Sliac 1932 · 0-1
You play Black
Portrait of Efim Bogoljubow

Efim Bogoljubow

“The Optimist”
Classical Peak 2650
  • Opponent: Efim Bogoljubow
  • Difficulty: FIDE Master
  • Goal: Beat the personality.
  • Reward: Rudolf Spielmann challenge · Bad Sliac 1932. At move 43 there is exactly one move for Black, and both engines agree on it, nothing else comes close. Find it, then beat Efim Bogoljubow 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