Viacheslav Ragozin vs. Mihkail Botvinnik
Puzzle from Viacheslav Ragozin vs Mikhail Botvinnik, URSS, 1936.
Black to move and win in 3.
Roll over to see the solution: 1.... Nf3+ 2. Kf1 Rd1+ 3. Re1 Rxe1#
FEN: 1k1r2r1/ppq4p/4Q3/1B2np2/2P1p3/P7/2P1RPPR/2B1K3 b - - 0 1
About the players
Mikhail Botvinnik was a Soviet and Russian grandmaster who held five world titles across three different reigns. He was the first world-class player to develop within the Soviet Union. He also worked as an electrical engineer and computer scientist.
Botvinnik developed early computer chess and received an honorary mathematics degree for this work. After World War II, he helped design the World Chess Championship system. He was a member of FIDE.
Viacheslav Ragozin (1908-1968) was a prominent figure among chess players of his time. World Correspondence Chess Champion, 1956-1959.
Ne5-f3
key move
1. Ne5-f3 Ke1-f1
2. Rd8-d1 Re2-e1
3. Qc7xc4 Qe6xc4
4. Rd1xe1
Ne5-f3
Rg8-g1
Rd8-d1
Ne5-f3
Rd8-d1
Rd8xe8
Nc6-Kc8
Re8-Rd8
Rxd8