White to move. Can White sustain the attack? How should White proceed?
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Bxa5 followed by Qxe6 looks to be good enough.
1. Qxe6 and if 1…Qxe6 2. Bxe6 with threats of both 3. Bxa5++ and 3. Rc8++
Whoops, I missed 3. Bxa5+ b6 4. Bxb6++. My bad.
1. Bxa5 looks right. If instead 1. Qxe6 Qxe6 2. Bxe6 Bf6 creates an escape square for the King.
1. Bxa5
If
1. … Qxa5
2. Qxe6
The dual threats of Qd7 and Q8 force Black to jettison the queen (2. … Qe1+ 3. Qxe1 Bc5 4. Qa5+ &f) on the way to losing.
So
1. … Nxc1
2. Bxb6+ Kc8
3. Bxe6+ Kb8
4. Qxc1 with Bxd5 coming, and White has few worries.
jcheyne
Bxa5 followed by QxB – that should do it.
jcheyne said…
“1. Bxa5”
Yep, 1 Bxa5!! wins.
Nice analysis:
“If
1. … Qxa5
2. Qxe6
The dual threats of Qd7 and Q8 force Black to jettison the queen (2. … Qe1+ 3. Qxe1 Bc5 4. Qa5+ &f) on the way to losing.
So
1. … Nxc1
2. Bxb6+ Kc8
3. Bxe6+ Kb8
4. Qxc1 with Bxd5 coming, and White has few worries.”
I found another winning line, which also works:
1 Re1 Rhg8 (or…Reg8) 2 Rxe6 Qc7 3 Bf4! Qc5 4 Be3 d4 5 Qf4!! and white is better and winning, though not as decisively as 1 Bxa5!!
Bxa5
after 1.re1? …
1…bd6! spoils the party imho
greetings
Rog’s looks prettier, but does it fail after 2…Bb4?
Banjanx
Unfortunately, pretty doesn’t count for as much as accurate, at least in chess. A few people pointed out refutations of 1. Qxe6 simply by moving the Be7.
Vohaul said…
“after 1.re1? …
1…bd6! spoils the party imho”
Yes, you’re right — I totally missed that move in my analysis: 1…bd6! leaves black in good shape and ahead; I can find no win for white.
And Banjanx said:
“Rog’s looks prettier, but does it fail after 2…Bb4?”
Rog: “Unfortunately, pretty doesn’t count for as much as accurate, at least in chess. A few people pointed out refutations of 1. Qxe6 simply by moving the Be7. “
First, 1 Qxe6 Qxe6 2 Bxe6 Bb4?? utterly fails to 3 Bg5+! Bg7 4 Rc8++!
However, (as others have pointed out as well) 2…Bf6!! wins for black, blocking the Bg5 check and leaving white without any options (on either 3 Rc8+ or Bxa5+, black now simply escapes with Ke7, and white is down lots of material with nothing to show for it).
So 1 Bxa5 is indeed the only winning move.
Qxe6 Qxe6
Bxa5+
anything that involves a queen move for black allows Rc8 mate, for example b6 Bxb6+ Qxb6 Rc8 mate. So:
Bxa5+ Kd7
Rc7+ Kd8
Bxe6 and black appears to be helpless
1. Qxe6? Qxe6
2. Bxa5+ Kd7
3. Rc7+ Kd6! winning the bishop