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Is that diagram really what you intended? There is only one queen on the board and White’s pawns are at g2 and h3, so there’s not much of a challenge ;).
I think the Q zig zags beginning with Qg2 pinning and zigs zags all the way.
That’s a8 the white king is on, not h1.
The threat black can put is
1. … Qg2
2. a7? Qd5
3. Kb8 Qd#
The white’s counter movement could be handled with both pinning the king and this checkmate to arrive a comfortable position.
A possible line could be
1. … Qg2
2. Ka7 Qf2+
3. Ka8 Qf3
4. Ka7 Qe3+
5. Ka8 Qe4
6. Ka7 g2
Now, I’m stuck! I couldn’t find the right continuation. Could somebody help me?
P. Anandh.
How about
1. g2
if
1. b8Q
2. Qxb8 Kxb8
3. g1Q a7
4. Qg3+ Kb7 [Ka8 5. Ke7]
5. Qf3+ Kb8
6. Qf4+ Kb7
and so on till mate or the black king reaches the pawn.
if
1. a7
2. g1Q b8Q
2. Qgg2+ Qb7
3. Qxb7#
Pedro
I’m sorry it should be
3. Kb8 Qd8#
Hi anonymous.
b8Q will give a check. That means black has to play Qxb8 with white’s response of axb8=Q. This position is a draw.
And I think the black queen should go very near to white king and exchange with b-pawn so that only white king recaptures. And black queens its pawn. Advancing of a file pawn should be discouraged with mate threat. It could possibly like
1. … Qg2
2. Ka7 Qf2+
3. Ka8 Qf3
4. Ka7 Qe3+
5. Ka8 Qe4
6. Ka7 Qd4+
7. Ka8 Qd5
8. Ka7 Qc5+
9. Ka8 Qc6
10. Ka7 Qc7
11. Ka8 g2
12. b8=Q+ Qxb8
13. Kxb8 g8=Q
14. h1
Is it a draw or win for black. I need to spend some more time
P. Anandh
Hi
I tried my variations. But it ends in draw. May some other threat or defence I’m missing totally.
P. Anandh
Hi,
1. … Qg2
2. Ka7 Qf2+
3. Ka8 Qf3
4. Ka7 Qe3+
5. Ka8 Qe4
6. Ka7 Qe7
7. Ka8 Qe8+
8. Ka7 g2
9. b8Q Qb8
10.Kb8 g1Q
11.a7 Qg3+
12.Kb7 [Ka8 5. Ke7] Qf3+
13.Kb8 Qf4+
14.Kb7
and so on till mate or the black king reaches the pawn.
Sorry I can’t check it completely.
I’m too busy at the moment.
I have to do everything in my mind.
Pedro
the given position is theoretical DRAW – the white king must not enter the b8 square- but what if the position is moved one rank (pawns on b6 and c7 …)
:)) Vohaul
I think black should try to make a set up. After exchange of black queen with white’s b-pawn, if black king is at d8 black can force a win with mate threat at Qc7. One of the important task for black is not to allow a7 immediately and white will definetly recover.
The continuation could be
1. … Qa2
2. Ka7 Qf2+
3. Ka8 Qf3
4. Ka7 Qe3+
5. Ka8 g2
Here white has few option
6. b8=Q+ Qe8
7. a7 g1=Q
(6 a7 g1=Q, 7. b8=Q+ Qe8 brings the same position)
8. Qxe8 Kxe8
Now black fully dictates the sequences of moves with proper calculation. One variation is
9. Kb8 Qg3+
10. Kb7 Qf3+
11. Kb8 Qf4+
12. Kb7 Qe4+
13. Kb8 Qe5+
14. Kb7 Qd5+
15. Kb8 Qd6+
16. Kb7 Qd7+
17. Kb8 Kd8
18 a8=Q Qc7#
If white king moves out of b7/b8 the black queen will always attack a8 and black king can slowly move to a8 and the pawn will be won.
P. Anandh
Oh! This one took a lot of time from me
@anandh – a lot of time – and all in vain … u are going to invent a new theory … applause! .-))
but after 6. b8=Q+ qe8
i’d simply take this queen…
no way to remove my king from this a-pawn …
endgame has a lot to do with memorizing – i don’t like it – but it is useful …
:-)) sincerely – Vohaul (lazy patzer)
This is a walkin’ problem for the black queen. You have to walk it down to trap the White king behind the pawn for a move and Black then queens the second pawn with an extra move. It reminds me of one of Alekhine’s games, and also one of Larry Evan’s problems from the 1980’s.
1) … Qg2
2) Ka7 Qf2+
3) Ka8 Qf3
4) Ka7 Qe3+
5) Ka8 Qe4+
6) Ka7 Qd4+
7) Ka8 Qd5
8) Ka7 Qd7
9) Ka8 g2
now black has the white king in front of the a pawn with move:
10) b8=Q+ Qe8
now black pins the white queen but won’t capture and let the white king get away
11) a7 g1=Q
12) Qxe8+ Kxe8
Viola! now black has the queen and a move! It’s easy from here:
13) Kb7 Qg7+
now if white moves the king away from the pawn its over quickly when black moves Qb7
14) Kb8 Qb5+
15) Kc7 Qa6
16) Kb8 Qb5+
17) Kc7 Qa6
18) Kb8 Kd7
and now white can’t stop black from mating regardless of what white promotes the pawn to
oops! from move 14:
now if white moves the king away from the pawn its over quickly when black moves Qb7
14) Kb8 Qe5+
15) Kb7 Qb5+
16) Kc7 Qa6
17) Kb8 Qb6+
18) Ka8 Qc6+
19) Kb8 Kd7
and now white can’t stop black from mating regardless of what white promotes the pawn to — best is a knight
11.a7 is losing indeed, but
11.kb7! g1Q
12. qf4+! qf7
13. qxf7+ kxf7
14.a7 will keep the draw, if the king maneuvers on c7, b7 and b8; he must not enter c8 or a8
:-), Vohaul
It’s a win for Black.
Look at this sequence: allow the white pawn to queen, but Qxb8; trap the White king by checking every alternate move thereby allowing the black king to assist its queen for the final kill. It’s over for White!
By the way, I am Gans from Louisvile. I took only 5 mins for this, so am not sure if I have missed something here.