Black to move. How should Black proceed?
Source: www.ChessToday.net
Chess Daily News from Susan Polgar
Attacking chess tactic
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Black to move. How should Black proceed?
Source: www.ChessToday.net
I have only eyes for Rf3:
1. …..Rf3!
And the rook immune as is the bishop at d4:
2. Kf3 Bg4!
3. Rg4
Or, 3.Ke4/f4 Bh5 4.Rg4 Qg4#; Continuing:
3. …..Qf2
4. Ke4 Qf5
5. Kd4 Qe5#
At move 2 for white, he still loses with
2. Nd4 Rf2
3. Ke3
Or 3.Rf2 Qf2 4.Kd1 Bg4 5.Nf3 Bf3#. Continuing:
3. …..Rg2
4. Qf1 Qe7
5. Kf3 Rh2 and white can’t survive this, surely. Even at move 3 in this line, he loses more quickly with
3. Kd1 Bg4
4. Ne2 Be2
5. Kc2 Qd4! and all I can find are mates of various lengths if white doesn’t give up the queen.
The best reply I can find for white on move 2 is
2. Qg1
But black is still going to win with Bg4, but it took me some time to work it out:
2. …..Bg4!
3. Rg4 Rf2
4. Kd1 e2
5. Kd2 Qh6
6. Rg5 e1(Q)! (double check)
7. Ke1 Rc2
Here, white has no good options. Qg3 loses to Bf2, Qd4 loses to Qg5, and Qg4 loses to Qh2:
8. Qg4 Qh2
And, now, white must try for a perpetual check, but the king can eventually hide no matter what white does:
9. Qe6 Kg7
10.Qe7 Kh6
11.Qf8 Bg7 (or Kg5)
Or, at move 9,
9. Rg6 hg6
10.Qg6 Kf8 (Bg7 is much same)
11.Qf5 Ke7
12.Qg5
Or 12.Qe4 Be5. Continuing:
12. ….Bf6
13.Qe3 Kd7 and white is out of checks.
Of course, I have almost certainly missed a shorter win with black’s second move in this line, but I am too damned lazy to go back and look at it again after working this one out. I didn’t see anything stronger than 2. …Bg4, but I am sure it is there, and if it isn’t, then I probably missed stronger moves along this entire line.
OK, my notation isn’t quite right (I don’t know it for promotion), but. . .
. . . Bd7xg4
If
f3xB – Rf2+
RxR – QxR+
Kd1 – e7+
Kd2 – e8(Q)++
If RxB- Qxf2+
Kd1 – e2+
Kd2 – e8(Q)++
After the bishop takes the pawn, with either response from white, there’s no escape for the white king.
I think …Rxf3 is the move. The other sac, Bxg4, seems to lose to Nxd4, which further protects f3.
1 …Rxf3
2 Nxd4 (if Kxf3, Bxg4+ looks devastating)
2 …Rf2+
3 Kxf3 (if Rxf2 Qxf2+, Kd1 Bg4+ will mate)
3 …Rxg2 and black has gained material and white’s king is out in the open. I don’t see a mate, but this is the best I can find.
Rxf3
Kxf3, Bxg4+
Rxg4 (K to 4. rank is fast mate with Be2+)
…, Qf2+
Ke4, Qf5#
As an addendum to the variation of the attacking d7 bishop.
As a 3rd bishop variation, if white doesn’t take Bxg4 with Rxb or f3xB,
. . . Bxg4
Ne1 – Bh3
Rg1 – Qf2+, etc.
I love these combinative problems! 🙂
1. … Rxf3 (2. Kxf3 Bxg4+, 2. Nxd4 Rf2+)
Rook sac on 1…Rxf3 looks devastating for white. If 2.KxRf3 white is getting mated with 2…Bxg4 3. Rxg4 Qf2+ 4.Ke4 Qf5+ 5.Kxd4 Qe5#.
At first 1… Bxg4 looks tempting because if
2. fxg4 2…Rf2+
Black wins. However after
2. Nxd4 Bh3
3. Rxg6+ hxg6
The position is equal imho.
Changing the move order around,
1… Rxf3! is the correct move
2. Qg1! ( 2. Kxf3?? Bxg4+ 3.Rxg4 Qf2+ 4.Ke4 Qf5+ 5.Kxd4 Qe5++) Rf2+
3. Rxf2 exf2
4. Qg3 Bxg4+
5. Kd2 Qg5+
6. Ne3 Bxe3+
7. Qxe3 Qf6! and Black wins
1. … Rxf3
if
2.Nxd4 Rf2+
3.Rxf2 Qxf2+
4.Kd1 Bxg4++
if
2.Kxf3 Bxg4+
3.Rxg4 Qf2+
4.Ke4 Qf5+
5.Kxd4 Qe5++
Armando – RS/Brasil
Rxf3 or even Bxg4 is very strong here!!!
I too love working on these problems. My vote for the winning move is:
… R x f3
Numerous combinations ensue, but I believe they all lead to a win for Black.
I think it starts with Bxg4