White to move. Is it possible for White to win this game?
Chess Daily News from Susan Polgar
Special endgame
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White to move. Is it possible for White to win this game?
1 Qb2 wins no matter what black does in his next move…
1 Qb2 Kd2
2 Ke4 Kd1
3 Kd3 c1=Q
4 Qe2#
(this was not the best defense by black, but perhaps the most logical?)
Gegga
1 Qd5 wins too, of course…
Gegga
How does 1 Qd5 win?
I found Geggas first line, too. That wasn’t too hard to see.
Afterwards I checked the table bases and Gegga is right: Qd5+ wins, too, but the winning variation is much more complicated and is nothing I would play/find in a real game.
If black plays (after 1. Qd5+) Kc3 it’s an easy win but Ke2 makes things really difficult.
Best regards
Jochen
http://www.youtube.com/watch?v=gCwZAw8m85A
This above YouTube link describes how to win in this Q vs. P position.
GeneM
**How does 1 Qd5 win?**
standard way: white allows to promote but moves his king close, targeting position like that:
w: kd3, qa2; b: kd1, qc1.
the trick in this position is accounting for the “corner” location of the white king. e.g. 1. qd5 ke2 2. qe4? (qa2 brings white closer to the position described) kd2 3. qd4 kc1! and white cannot move the king closer (d4 square is occupied) and has to waste the tempo while the black king gets to a1. (=)
1. Qb2 Kd2
2. Ke4 Kd1
3. Kd3 c1=N+
Doesn’t change the eventual outcome, but does lengthen the game. The K+P side underpromoting to N is a common complicating factor in many of these endgame positions.
The most beautiful continuation is
1.Qd5?! Ke3!?
2.Qg2!! (only move!) with 3.Qg5 next
Hey, this is one nice puzzle that shiva gave you guys….
Aso winning is
1.Qb2 Kd2
2.Kd4 Kd1
3.Qb3! Kd2
4.Kd2 Qd3+
5.Kc1 Kc3