10+5 • Rapid • Rated
Threefold repetition • Draw
Queen's Gambit Declined: Three Knights Variation
1. d4 d5 2. c4 e6 3. Nf3 Nf6 ... 45 moves
“Reductio ad absurdum, which Euclid loved so much, is one of a mathematician's finest weapons. It is a far finer gambit than any chess play: a chess player may offer the sacrifice of a pawn or even a piece, but a mathematician offers the game.”