Yesterday's position comes from the game Dahlin-Richardson, Sweden v England, Student Team Olympiad, Krakow, 1964, mentioned in the comments of our previous post about How To Cheat At Chess.
The diagram is the position at adjournment: White, two pawns ahead and winning, sealed 44.Kh4. This, to put it mildly, is not quite the strongest move available - as White shortly realised. But now the move was written, sealed and in the hands of the arbiter - what could he do?
The story is taken up by Andrew Walker:
A bit later, Dahlin sees Keith in the bar:...at which point Keith discovered that not the "second best" move, but the blunder mentioned above had actually been sealed. Allowing mate in two with 44...Rh5+ 45.Kg4 f5 mate.
"Why don't you resign, it's an easy win, look" (plays [the] second best move, and flashes out winning line).
Keith, somewhat naively, and relieved that Dahlin hasn't sealed the best move: "But that doesn't win, it's a book draw!"
Dahlin: "Shucks. But surely this wins?" (goes back a couple of moves and tries again)
Keith: (more skittles, showing that he can draw).
Finally, the Swedish player gave up in disgust, grumbled how lucky Keith was that he hadn't sealed the best move (which indeed won easily) and offered a draw. Keith accepted, before his opponent could change his mind and find a winning plan. When they went to the arbiter to confirm the result the envelope was unsealed...
[What happened next? index]