1.Re8 (a)1…. Qxe8 2.Qxh6+ Bh7 3.Qxg7# (b)1…. Qg6 or Qc6 2.Qxne4 wins a piece. (c)1… Ng5 2.RxQe6 BxRe6 wins Q for R.3.h4 will win another piece.or 2… Nxe6 3.Qxh6+ Bh7 4.QxNe6. (d)1…. Qd6 2.Rxe4 Qd1+ 3.Qe1 and no more checks. (e)1… Qd7 or Qf7 or Qf5 2.Qxh6# (f)1…. Kh7 2.Rxe6 Bxe6 3.Qxe4+ wins Q and N for a R. 26/11 attack is sadly remembered in India.
Pin on g7, attacking point on h6 + g7, needed to deflect Q from protection of h6. The pin on Bg8 can be given up if both h6 and g7 are unprotected. Therefore:
1. Re8! Qxe8? 2. Qxh6+ Bh7 3. Qxg7#
1. … Qxc4?? 2. Qxh6#
1. … Qg6? 2. Qxe4 Black is down with full rook and resigns.
1. … Qb6!
Must be best. But white still has another idea, to attack Bg8.
2. Qxe4 Qxb2
Here I encounter a problem. The plan Qe6 is clear enough, but to make it work I think I need some prophylaxis against Qc1+ Kh2 Qf4+ (eternal check).
3. Rf8!!
All black defence ideas now seem prevented. Black can’t move king and unpin Bg8. He can’t protect Bg8 as long as he can’t take c4. An eternal check is well prevented.
2. … Qc1+ (Qb6 Qd5! Kh7 looks the same) 3. Kh2 Qg5 4. Qe6 Kh7 (enforced) 5. Qxg8+ Kg6 6. Qd5 Black is down with full rook and resigns.
Re8 wins by force- it double threatens the knight at e4, and the black queen cannot take the rook because of the of the pin on the g7 pawn:
1. Re8 Qe8? 2. Qh6! Bh7 3. Qg7#
Black doesn’t have any really good options- the queen must remain on the 6th rank to protect h6 because of that pin. The only really plausible try is to play Qb6 attacking the unprotected bishop at b2, but this is going to fail to balance things:
1. Re8 Qb6 2. Bg7! Kg7 (Kh7 3.Qe4 wins) 3. Qe4 Bf7 (any better?) 4. Re7 and this ending is utterly hopeless for black. I don’t quite see a killing mate here for white, but I think white will easily exchange off the queens and win all the black queen side pawns while retaining at least one of his on that side of the board.
Thanks for looking into black’s only playable alternative:
1. Re8 Qb6
I don’t know why the others didn’t look into this obvious move. Black knows he is loosing a knight, but wants to get a bishop for it.
Here you have the natural looking idea:
2. Bxg7+
and as you say, white is better here. But is this white’s best plan? I’m more attracted to let black keep his g7 pawn to make sure the king stays in the corner and Bg8 remains pinned!
What about:
2. Qxe4 Qxb2
and now white has the plan to play either Qd5 or Qe6 (i.e. a double threat) to kill the still pinned Bg8 and finish the game right away.
Have I under estimated black’s resourses to defend himself in this line?
Doesn’t Qe4 nicely control most fields that black could have dreamt about using to defend this?
If I have missed something here, I would like to know. How do you judge my next move:
3. Rf8
to get even better control of fields of both colours, before attacking Bg8?
I hadn’t really thought of this move for white- I had dismissed this line precisely because of the threatened perpetual, and wasn’t interested in ways to stop it. I think white will clearly win from here. With Rf8, white forecloses the harassment, and I really don’t see much that black can do but exchange off the queens:
3. ……Qd4 4. Qd4 cd4 5. Rd8 Kh7 6. Rd4
And this is quite like the edge I found- black has impossible to protect queen side pawns, and both of white’s are safe. So, if there is a problem, it will in black having a better option than 3. …Qd4, but I can’t see what it might be.
1.Re8!!!
A>1……Qxe8.2.Qxh6+.Bh7.3.Qxg7#!
B>1……Qc/g6.2.Qvxe4 wins easily a R up and attack.
1.Re8
(a)1…. Qxe8 2.Qxh6+ Bh7 3.Qxg7#
(b)1…. Qg6 or Qc6 2.Qxne4 wins a piece.
(c)1… Ng5 2.RxQe6 BxRe6 wins Q for R.3.h4 will win another piece.or 2… Nxe6 3.Qxh6+ Bh7 4.QxNe6.
(d)1…. Qd6 2.Rxe4 Qd1+ 3.Qe1 and no more checks.
(e)1… Qd7 or Qf7 or Qf5 2.Qxh6#
(f)1…. Kh7 2.Rxe6 Bxe6 3.Qxe4+ wins Q and N for a R.
26/11 attack is sadly remembered in India.
Re8
Pin on g7, attacking point on h6 + g7, needed to deflect Q from protection of h6.
The pin on Bg8 can be given up if both h6 and g7 are unprotected.
Therefore:
1. Re8! Qxe8?
2. Qxh6+ Bh7
3. Qxg7#
1. … Qxc4??
2. Qxh6#
1. … Qg6?
2. Qxe4
Black is down with full rook and resigns.
1. … Qb6!
Must be best. But white still has another idea, to attack Bg8.
2. Qxe4 Qxb2
Here I encounter a problem.
The plan Qe6 is clear enough, but to make it work I think I need some prophylaxis against Qc1+ Kh2 Qf4+ (eternal check).
3. Rf8!!
All black defence ideas now seem prevented. Black can’t move king and unpin Bg8. He can’t protect Bg8 as long as he can’t take c4. An eternal check is well prevented.
2. … Qc1+ (Qb6 Qd5! Kh7 looks the same)
3. Kh2 Qg5
4. Qe6 Kh7 (enforced)
5. Qxg8+ Kg6
6. Qd5
Black is down with full rook and resigns.
1. Re8 1-0 (threatens 2. Qxh6# if black Queen leaves the 6th row, otherwise black Knight on e4 will be lost)
1. Re8 (Black’s Q is overworked protecting the N on h6 P). If 1…Qxe8 2. Qxh6 with mate on g7. If 1…Qg6 or 1…Qc6 the N is lost.
Re8!
1.Re8
if 1..Qxe8
2.Qxh6+ Bh7
3.Qxg7#
if 1..Qg6 White wins N.
Re8 wins the Knight as the queen is defending h6
Bf6
Re8 wins by force- it double threatens the knight at e4, and the black queen cannot take the rook because of the of the pin on the g7 pawn:
1. Re8 Qe8?
2. Qh6! Bh7
3. Qg7#
Black doesn’t have any really good options- the queen must remain on the 6th rank to protect h6 because of that pin. The only really plausible try is to play Qb6 attacking the unprotected bishop at b2, but this is going to fail to balance things:
1. Re8 Qb6
2. Bg7! Kg7 (Kh7 3.Qe4 wins)
3. Qe4 Bf7 (any better?)
4. Re7 and this ending is utterly hopeless for black. I don’t quite see a killing mate here for white, but I think white will easily exchange off the queens and win all the black queen side pawns while retaining at least one of his on that side of the board.
Easy, but so pretty: Re8!
To Yancey Ward:
Thanks for looking into black’s only playable alternative:
1. Re8 Qb6
I don’t know why the others didn’t look into this obvious move. Black knows he is loosing a knight, but wants to get a bishop for it.
Here you have the natural looking idea:
2. Bxg7+
and as you say, white is better here.
But is this white’s best plan?
I’m more attracted to let black keep his g7 pawn to make sure the king stays in the corner and Bg8 remains pinned!
What about:
2. Qxe4 Qxb2
and now white has the plan to play either Qd5 or Qe6 (i.e. a double threat) to kill the still pinned Bg8 and finish the game right away.
Have I under estimated black’s resourses to defend himself in this line?
Doesn’t Qe4 nicely control most fields that black could have dreamt about using to defend this?
If I have missed something here, I would like to know.
How do you judge my next move:
3. Rf8
to get even better control of fields of both colours, before attacking Bg8?
pht,
1. Re8 Qb6
2. Qe4 Qb2
3. Rf8
I hadn’t really thought of this move for white- I had dismissed this line precisely because of the threatened perpetual, and wasn’t interested in ways to stop it. I think white will clearly win from here. With Rf8, white forecloses the harassment, and I really don’t see much that black can do but exchange off the queens:
3. ……Qd4
4. Qd4 cd4
5. Rd8 Kh7
6. Rd4
And this is quite like the edge I found- black has impossible to protect queen side pawns, and both of white’s are safe. So, if there is a problem, it will in black having a better option than 3. …Qd4, but I can’t see what it might be.