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White to win.

White to win.

Posers and Puzzles

M

Joined
12 Mar 03
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44411
Clock
11 Apr 05
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Originally posted by ilywrin
I believe after 9.Bc6! (10.Qb5# ) all goes relatively easy.9...Qf(h)5 10.Qc4 and White wins; 9...Kb6 10.Qb5+ and 11.Qb7#;9...Kb4 10.Qb5+ Kc3 (10...Ka3 11.Qb2# ) 11.Qc5+ Kd3 (11...Kb312.Bd5+ Ka4 13.Qc4+ Ka5 14.Bc6 + -) 12.Bb5+ Ke4 13.Qe5+ Kf3 14.Be2 + wining the queen.
After 9.Bc6 Qf5 10.Qc4, black can play 10. ... g5! 11.fxg Qxg5+ and this is not all that clear...

I think c6 is not the best square for the bishop. White should use the mate threats to win the pawns and be in an easy endgame (still some checks to expect). The bishop may need to attack the g-pawn from e8 or c2, and the queen should try to win the c-pawn. Something like this:

9.Be8! and now
- 9. ... Kb6 10.Qb5+ Ka7 11.Qc5+ Kb8 (other moves run to mate) 12.Qg5!

- 9. ... Qf5 10.Qc4! and if now 10. ... g5, then 10.Qxc7+ (Ka6 11.Qd6+ e.g. Ka5 12.Qa3+ KB6 13.Qe3+ and 14.fxg5 with the queen protecting the bishop in case of a check on c8) Kb4 11.Qe7+ and e.g. Kc4 12.Qe2+ Kb4 13.Qd2+ Kb3 14.Qe3+ and then 15.fxg5

T

Joined
29 Feb 04
Moves
22
Clock
11 Apr 05
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Originally posted by Mephisto2
After 9.Bc6 Qf5 10.Qc4, black can play 10. ... g5! 11.fxg Qxg5+ and this is not all that clear...
Especially as only
7% of games with KQBKQ are winning for White (btm)
and
55% of games with KQBKQ are winning for White (wtm).

T

Joined
29 Feb 04
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22
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11 Apr 05
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9. Be8 c6 also needs to be considered.

M

Joined
12 Mar 05
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257
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12 Apr 05
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Very nice!

i

Joined
30 Oct 04
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7813
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14 Apr 05
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Originally posted by Mephisto2
After 9.Bc6 Qf5 10.Qc4, black can play 10. ... g5! 11.fxg Qxg5+ and this is not all that clear...

I think c6 is not the best square for the bishop. White should use the mate threats to win the pawns and be in an easy endgame (still some checks to expect). The bishop may need to attack the g-pawn from e8 or c2, and the queen should try to win the c-pawn. ...[text shortened]... case of a check on c8) Kb4 11.Qe7+ and e.g. Kc4 12.Qe2+ Kb4 13.Qd2+ Kb3 14.Qe3+ and then 15.fxg5
Though you are probably right, I think I can give a correction to the 9.Bc6 variation after 10...Qf5 11.Qf2 Ka6! (everything else leads to the exchange of queens or mate) 12.Qe3! Qa5 13.Kd1 and White should win by going to f3 with the king.

T

Joined
29 Feb 04
Moves
22
Clock
16 Apr 05
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Originally posted by ilywrin
after 10...Qf5 11.Qf2 Ka6! (everything else leads to the exchange of queens or mate) 12.Qe3! Qa5 13.Kd1 and White should win by going to f3 with the king.
After 12. Qe3? then 12. g5! is again strong
as 13. fxg5 is answered by Qc5+

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