White to move and win. (It is a bit tricky and White must calculate carefully)
3qN2B/8/8/2n5/R4P1k/6r1/1R6/4K3 w – – 0 1
Kakovin, 1971
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The bishop fork is obvious, but before taking the queen, White has to eliminate Black’s counterplay.
1. Bf6+ Qxf6
2. Rh2+ (2. Nxf6 Nd3+)
2. … Rh3
3. Rxh3+ Kxh3
4. Ra3+ Kg4 (4. … Nd3 5. Rxd3+)
5. Nxf6+ Kxf4
6. Ra5
1.Bf6+ Qxf6 2.Rh2+ Rh3 3.Rxh3+ Kxh3 4.Ra3+ and Nxf6
Bf6+ comes to mind, to get rid of the queen. Then white is a rook up. Should win.
1. Bf6+ Qxf6
2. Rh2+ Kg4
3. Nxf6+ Kf3
(3… Kf5 4. Ra5)
4. Ra3+ Kxf4
5. RxR KxR
Is R+K vs N+K a win for white?
The alternative 4. Rc4 doesn’t work:
4. Rc4 Ne4
5. Kd1 Kxf4
Or
4. Rf2+ Ke3
5. Ra3+ Nd3+
6. RxN+ KxN
7. f5 Rg7
is draw
who knows… I don’t really know endgames that well.
I would suggest:
1 Bf6+ Qxf6 (1 .. Kh3 2 Bxd8 Nxa4 3 Re2 leaves white a bishop and a pawn up, although there might be more to this …)
2 Rh2+ Rh3 (2 .. Kg4 3 Nxf6+ Kf5 4 Rh5+ Kxf6 5 Rxc5 wins)
3 Rxh3+ Kxh3
4 Ra3 Nd3+ (4 .. Kh4 5 Nxf6 Nd3+ 6 king move, not Rxd3 stalemate, wins)
5 Rxd3+ Kh4
6 Rh3+! (6 Nxf6 stalemate) Kxh3
7 Nxf6 Kg3
8 Nd5 and the f-pawn decides.
How about the following:
1. Bf6+ Qxf6
2. Rh2+ Kg4
3. Nxf6+ Kf3
4. Rf2+ Ke3
5. Re2+ Kf3
(5… Kd3 6. Ra3+ offers less resistance)
6. Ra3+ Kxf4
7. Rf2+ K-any (leaving guard of the rook)
8. Rxg3
with two R+R+N vs N — which should win easily.
I like the looks of 1.Bf6+ Qxf6 2. Rh2+, delaying the recapture of the queen to avoid black’s fork of king and rook.
I look at this and I cannot abstain from 1. Bf6+ winning the queen. I think I would go for rook, knight and pawn against a rook and knight 🙂
-Harri
key move is 4.Ra3+ to gain a tempo with a check and save the rook.