Comments (7)
No. 1-3
Yancey_Ward
Yancey_Ward

Editor

I tried- the site just reformats the text- the text writing software of Maven is just atrocious.

Yancey_Ward
Yancey_Ward

Editor

A very instructive position! Most of my first thoughts turned out to be ill-formed. My first thought were that black wants to get the rook to c8 or a8 to take advantage of white's king exposure, but I think both moves are just too slow. For example:

1.......Ra8? 2.Rd1!

and white has an easy draw since Rd8+ can't be stopped and the black king won't be able to hide from the white queen's checks. 1....Rc8 fails for the same reason- white takes possession of the d-file and black just doesn't have time to attack any longer. So, I thought black has to play 1....Qd3+ first to prevent Rd1, but even this isn't likely enough:

1.......Qd3+ 2.Ka1 Rc8 3.Qf6!

And now how do you continue for black? White now controls the a1-h8 diagonal preventing any checks on the white king. I thought that 3....Qd2 might be a good continuation to go after g2 and h2, but not as a prelude to Rc2:

3.......Qd2 4.Kb1

White is just waiting.

3.......Rc2 4.Rf1!

and suddenly black has nothing but a draw. So, at move 3 in this line I tried ...

3.......Qxg2 4.Rf1!

Again attacking the weak point f7. How does black continue here? I tried everything I could think of- there is just no time given the need to protect f7. If there is win in this line for black I don't see it.

The keys in all the above is the need to take control of the d-file and the a1-h8 diagonal, and the f1 square- in other words, I was just too impatient- black needs to give two checks to save the time necessary to mount an effective attack:

1.......Qd3+! 2.Ka1 Qd4+! 3.Kb1

And now it all completely different- white can't play Rd1, Rf1, or Qf6 (the potential check from d3 prevents Rf1). Black now has time for.....

3.......Rc8!

And white is in a sort of zugzwang- the rook has no moves, and a pawn move like g3 to protect the kingside pawns is just losing:

4.g3 Qd3+ 5.Ka1 Qc3+ 6.Kb1 Qc2+ 7.Ka1 Ra8 8.a4 Qxb3-+

So, at move 4, white must move to prevent the Ra8 move, with either Qb7/a7, or Qa3, but all of these moves lose to the same basic attack, though it took me a while to work it all out to my satisfaction- so continuing from move 3 immediately above:

4.Qb7 Qd3+ 5.Ka1 Qc3+ 6.Kb1 Qc2+ 7.Ka1 Rd8 8.Qa6 Rd2 9.Qa3 Qc3+ 10.Kb1 b5 11.Rc1 Qd3+ 12.Ka1 Qd4+ 13.Kb1 Qxe4+ 14.Ka1 b4 and white will have to give up the queen for the black rook.

Yancey_Ward
Yancey_Ward

Editor

A very instructive position! Most of my first thoughts turned out to be ill-formed. My first thought were that black wants to get the rook to c8 or a8 to take advantage of white's king exposure, but I think both moves are just too slow. For example:

1.....Ra8? 2.Rd1! and white has an easy draw since Rd8+ can't be stopped and the black king won't be able to hide from the white queen's checks. 1....Rc8 fails for the same reason- white takes possession of the d-file and black just doesn't have time to attack any longer. So, I thought black has to play 1....Qd3+ first to prevent Rd1, but even this isn't likely enough:

1......Qd3+ 2.Ka1 Rc8 3.Qf6!

And now how do you continue for black? White now controls the a1-h8 diagonal preventing any checks on the white king. I thought that Qd2 might work, but....

3....Qd2

The idea is to go after g2 and h2- not to play Rc2 since the white king and queen control b2 already.....

4.Kb1 just waiting

3.....Rc2 4.Rf1! and suddenly black has nothing but a draw. So, at move 3 in this line I tried ...

3.....Qxg2 4. Rf1!

Again attacking the weak point f7. How does black continue here? I tried everything I could think of- there is just no time given the need to protect f7. If there is win in this line for black I don't see it.

The keys in all the above is the need to take control of the d-file and the a1-h8 diagonal, and the f1 square- in other words, I was just too impatient- black needs to give two checks to save the time necessary to mount an effective attack:

1.....Qd3+! 2.Ka1 Qd4+! 3.Kb1

And now it all completely different- white can't play Rd1, Rf1, or Qf6 (the potential check from d3 prevents Rf1). Black now has time for.....

3....Rc8!

And white is in a sort of zugzwang- the rook has no moves, and a pawn move like g3 to protect the kingside pawns is just losing:

4.g3 Qd3+ 5.Ka1 Qc3+ 6.Kb1 Qc2+ 7.Ka1 Ra8 8.a4 Qxb3-+

So, at move 4, white must move to prevent the Ra8 move, with either Qb7/a7, or Qa3, but all of these moves lose to the same basic attack, though it took me a while to work it all out to my satisfaction:

4.Qb7 Qd3+ 5.Ka1 Qc3+ 6.Kb1 Qc2+ 7.Ka1 Rd8 8.Qa6 Rd2 9.Qa3 Qc3+ 10.Kb1 b5 11.Rc1 Qd3+ 12.Ka1 Qd4+ 13.Kb1 Qxe4+ 14.Ka1 b4 and white will have to give up the queen for the black rook.


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