Y Afek, 1st Pr, Israeli Ring Tourney 1975
White to play and win
1. b7 Bc5!
The toughest defence. 1... Re6 2. Nc7, and 1... Rc6 2. b8=N+ both lose at once, as does 1... Ra6+ 2. Ba7.
2. Bxc5!
2.b8=Q? fails to 2...Ra6+ 3. Kb7 Rb6+, whilst the tempting under-promotion 2. b8=N+ is also inadequate, because after Kc8 3. Bxc5 d4 the ending is a draw.
2... Rh8+ 3. Ka7 Kc6 4. Bd4!
4. Nd6 Kxc5 5. Nc8 Rh7 draws.
4... Rh7
4... Rf8 5. Ka6 wins)
and now the beautiful final point: 5. Bg7!! Rxg7 6. Nd4+ and Black must lose his rook to a knight fork, or else put his king on the 7th rank, allowing the pawn to queen!
