03 Aug 06
1 edit
This is a position I arrived at in a 3 0 blitz game, I won, playing black with 6 secounds left on my clock.
White has just played 48. Kxg7, had he played 48. a3 White would of won.
assuming best defence, why was Kxg7 a blunder?
Black to play....and win in 8-9 moves (approx)
Good luck.
^^ sorry, don't know how to flip the board 🙂
03 Aug 06
3 edits
Originally posted by ShinidokiBlack plays b3. If axb3, then c3 bxc3 and white has a3 queening the pawn.
This is a position I arrived at in a 3 0 blitz game, I won, playing black with 6 secounds left on my clock.
White has just played 48. Kxg7, had he played 48. a3 White would of won.
assuming best defence, why was Kxg7 a blunder?
[fen]8/6K1/4k3/7P/ppp5/2P5/PP6/8 b - - 0 48[/fen]
Black to play....and win in 8-9 moves (approx)
Good luck.
^^ sorry, don't know how to flip the board 🙂
Edit: But black still has to deal with white's h-pawn. Hang on, I'm working on it.
Edit2: white's h pawn will be on the 7th rank, after black queens, with black to move. He uses the standard method of queen vs pawn on 7th rank. Black will win because white has pawn moves that preclude the usually drawing stalemate defense.
Edit3: It looks like a draw to me. I miscounted. They will queen at the same time.
Final lines: 1... b3 2. cxb3 a3 3. bxa3 c3 4. h6 c2 5. h7 c1=Q 6. h8=Q
03 Aug 06
Originally posted by ark13your line is wrong.....After b3 axb3....you state c3, which is not a legal move
Black plays b3. If axb3, then c3 bxc3 and white has a3 queening the pawn.
Edit: But black still has to deal with white's h-pawn. Hang on, I'm working on it.
Edit2: white's h pawn will be on the 7th rank, after black queens, with black to move. He uses the standard method of queen vs pawn on 7th rank. Black will win because white has pawn moves that preclude the usually drawing stalemate defense.
03 Aug 06
1 edit
Originally posted by ark13a3. is indeed the right first move, however The game is far from drawn, black does not have to settle for perpectual check.
Okay, the solution is a3. If bxa3, then bxc3 queening at the same time as white with a draw. If b3, then the same line holds the draw. It'll probably be a draw by perpetual check.
note: - if your using a computer it will state it is drawn, that is until it can see far enough into the position....
03 Aug 06
Originally posted by Shinidoki1...a3 2.bxa3 bxc3 3.h6 c2 4.h7 c1=Q 5.h8=Q Qa1+ and Black wins by trading queens and queening the c4 pawn.
This is a position I arrived at in a 3 0 blitz game, I won, playing black with 6 secounds left on my clock.
White has just played 48. Kxg7, had he played 48. a3 White would of won.
assuming best defence, why was Kxg7 a blunder?
[fen]8/6K1/4k3/7P/ppp5/2P5/PP6/8 b - - 0 48[/fen]
Black to play....and win in 8-9 moves (approx)
Good luck.
^^ sorry, don't know how to flip the board 🙂
03 Aug 06
1 edit
Originally posted by BigDoggProblemThe solution I had was different.
1...a3 2.bxa3 bxc3 3.h6 c2 4.h7 c1=Q 5.h8=Q Qa1+ and Black wins by trading queens and queening the c4 pawn.
what I found was: -
1...a3 2.bxa3 bxc3 3.h6 c2 4.h7 c1=Q 5.h8=Q
and Instead of Qa1+ (which also works)
Qg1+ Kh6 [Kh7? Kf7, mate to follow, Kf8 also fails] Qh2+ Kg7 Qg3+ Kh6 [Kf8 Qf4+ Kg7 Qg5+ Kf8 Qe7+ Kg8 Qf7#] Qh4+ [Kg7 Qg5+ 0-1] Kg6 Qxh8 -- winning the Queen.
But....48. Kxg7 a3 49. bxa3 b3 50. axb3 cxb3 51. h6 b2 52. h7
b1=Q 53. h8=Q Qg1+ 54. Kf8 Qf2+ 55. Ke8 Qf7+ 56. Kd8 Qd7#
0-1 ....was the line played in the blitz game.
03 Aug 06
Originally posted by ShinidokiI'd hate to have to calculate all the lines like 5...Qg1+ 6.Kf8. You say it fails (and it must, because at the very least, Black can still trade Queens), but I'm not sure I could find how it fails with only 6s left.
The solution I had was different.
what I found was: -
1...a3 2.bxa3 bxc3 3.h6 c2 4.h7 c1=Q 5.h8=Q
and Instead of Qa1+ (which also works)
Qg1+ Kh6 [Kh7? Kf7, mate to follow, Kf8 also fails] Qh2+ Kg7 Qg3+ Kh6 [Kf8 Qf4+ Kg7 Qg5+ Kf8 Qe7+ Kg8 Qf7#] Qh4+ [Kg7 Qg5+ 0-1] Kg6 Qxh8 -- winning the Queen.
But....48. Kxg7 a3 49. bxa3 b3 50. axb3 c ...[text shortened]... 8=Q Qg1+ 54. Kf8 Qf2+ 55. Ke8 Qf7+ 56. Kd8 Qd7#
0-1 ....was the line played in the blitz game.
5...Qa1+, on the other hand, requires no real calculation. It's nice and simple.
03 Aug 06
Originally posted by BigDoggProblemWith 6 secounds on the clock - I could barely find mate in 2, let alone that complex sequence - nonetheless, I like that solution, I find it a pity that a far simpler, just as good, solution exists.
I'd hate to have to calculate all the lines like 5...Qg1+ 6.Kf8. You say it fails (and it must, because at the very least, Black can still trade Queens), but I'm not sure I could find how it fails with only 6s left.
5...Qa1+, on the other hand, requires no real calculation. It's nice and simple.