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|Nov-20-14|| ||patzer2: The discovered attack 30...Rb5! solves today's Thursday puzzle with a double attack which threatens mate-in-one and also the unprotected White Queen.|
|Nov-20-14|| ||BxChess: I went with 30...d2, 31 Kd1 Rxf2.
The white queen has to protect both e3 and b1, to prevent mate, which it can't do. If 31 Ke2 Rxf2 wins the white queen.
|Nov-20-14|| ||M.Hassan: "Medium"
Black to play 30...?
Exactly equal in material:
33.Kd1 Qxe4 White Queen falls
Black is far stronger in material now
Time to check
I admit the game line is more impressive. I did not think of 30...Rxb5 that leads to a forcing mate next or else loose the Queen.
|Nov-20-14|| ||al wazir: I never even looked at 30...Rb5. My move, 30...Nxe3, manifestly fails because of 31. Qxe3 (not 31. fxe3 Qxb3+ 32. Kd2 Qf2+, picking up the ♖ on a2) Re8 32. Nxf5 Re6 (32...Rxe3+ 33. Nxe3) 33. Kd2, leaving black with ♕+♙ vs. ♖+♖+♘.|
|Nov-20-14|| ||agb2002: The material is identical.
White threatens 31.N(Q)xf5.
The white can can only move along the first rank and the white queen is defenseless. This suggests 30... Rxb5, threatening 31... Rb1# and 31... Qxe4:
A) 31.Nxb5 Qxe4 - + [Q+P vs R].
B) 31.Qxg6 Rb1#.
C) 31.Nc6+ Qxc6 (or 31... bxc6 32.Qxc4 Rg1+ 33.Kd2 Rxh1 34.Rb2+ Ka8 35.Qa6 Rb8 - +) 32.Qxc6 Rb1#.
D) 31.f3 Qxe4 32.fxe4 Rb1+ 33.Kf2 Rxh1 - + [R+P].
|Nov-20-14|| ||gofer: I am trying to see why <30 ... Rxb5> doesn't work...|
<30 ... Rxb5>
31 Qxg6 Rb1#
31 Nc6+ Qxc6 (Now threatening Rb1# and Qxh1# if the queen moves)
31 Nxb5/Kf1 Qxe4 (Now threatening Qxh1#)
31 f3/f4 Qxg3+
32 any move Rb1#
Okay! It does work... ...well that only took a couple
of minutes unlike yesterday! Yesterday had SO many lines
|Nov-20-14|| ||diagonalley: <M Hassan> ... i don't suppose it's any consolation(!), but my shot was practically identical to yours...|
|Nov-20-14|| ||mike1: saw the game before and (by accident) remembered it.
Just wonder would to play if White chooses 30. 0-0 instead of Nd4?|
|Nov-20-14|| ||Prosperus: 30. ... Nxe3!? 31. fxe3 (31. Qxe3 Re8) Qxg3+ 32. Kd2 Rf3+ 33. Kxd3 Rxa2|
|Nov-20-14|| ||morfishine: This looks more like a Thursday puzzle than a...wait, it is Thursday!? Now I know why I missed it: I don't even know what day it is! :)|
FWIW: I thought 30...d2+ was sufficient
First, the simple and flawed "mainline":
<30...d2+> 31.Rxd2 Nxd2 32.Kxd2 Rxf2+ 33.Kd3 Rd2+
Or the other option
<31.Kd1> 31...Nxe3+ 32.Qxe3 Qg4+ 33.Kxd2 Rxd4+ 34.Kc3 Rf3
but the simple 33.f3 refutes this :(
|Nov-20-14|| ||patzer2: The losing moves in the game were 29. Nf3? and 30. Nd4??|
Instead White could have played 29. a4 = equalizing, or, failing that, 30. Qxc4 Rxf3 to putting up more resistance.
After 29. Nf3? Nxc4!, the White Queen was overworked. Obviously 30. Nd4?? Rxb5! didn't make her job any easier.
|Nov-20-14|| ||rodchuck: I thought similarly to Morphishine 30 ...d2+, 31.Kd1 Rxf2 32. Qxf6 Nxe3#, but 31 Rxd2 spoils this line|
|Nov-20-14|| ||eblunt: < M.Hassan: >
A) 31.♖xd2 ♘xd2
and white is now a pawn up
|Nov-20-14|| ||Chess Dad: I don't normally get Thursday puzzles, but for some reason I saw the back-row mate potential with Nc4 covering d2, d3 covering e2, and White's pawn on f2.|
So I saw 30...Rxb5. I wasn't sure how White would respond, so I didn't go further, but the game line certainly wasn't the best of a bunch of bad choices.
|Nov-20-14|| ||kevin86: Black threatens mate...and then the queen. White is lost!|
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|Nov-20-14|| ||M.Hassan: <diagonally>:
<M Hassan ... i don't suppose it's any consolation(!), but my shot was practically identical to yours...>
As <eblunt> has shown, my line (A) and may be yours too!! just does not work. Your statement IS a consolation anyways, thx
|Nov-20-14|| ||M.Hassan: <eblunt: < M.Hassan: >
A) 31.xd2 xd2
and white is now a pawn up>
RIGHT and thanks for correction
|Nov-20-14|| ||Jimfromprovidence: I had a lot of trouble with yesterday's but this one was a nice one-mover.|
The big hint for me was that the rook was double attacked and pinning the queen so I figured that that was the piece that had to be looked at first.
I also liked <gofer>'s 31 f3?? Qxg3+ mate next move line.
click for larger view
|Nov-20-14|| ||rickycota: Nice game, why not 24...Bc6? what can white do next?|
|Nov-20-14|| ||shivasuri4: <rickycota>, White would reply to 24...Bc6 with 25.Nxc6, when the game still has some life.|
|Nov-20-14|| ||ChemMac: <mike1> 30.O-O is answered by 30...Qf7 threatening both 31...RXf3 and 31....Nd6 with a discovered attack on the a2 R. 30.Nd2 Ne5 (I do not at first glance see any cute sacrifice here) 31.O-O leaves Black with a winning position, but no immediate finish.|
|Nov-20-14|| ||Bubo bubo: White's position suffers from a weak back rank and an unguarded queen. Black exploits this with 30...Rxb5!|
White cannot cope with the double threat of Rb1# and Qxe4, he loses at least his queen for a rook (31.Nxb5 Qxe4) or a rook for nothing (31.f3 Qxe4 32.fxe4 Rb1+ 33.Kf2 Rxh1).
This was easier than yesterday's puzzle by several orders of magnitude! It seems to me as if such an imbalance occurs most likely between Wednesday and Thursday. That's an odd thing...
|Nov-20-14|| ||yureesystem: Absolutely aesthetically beautiful, I love Spielmann's games!|
|Nov-21-14|| ||TheBish: I solved this from the archives, since I missed it earlier. Really racked my brain on this one! I looked at just about every plausible candidate move, including Rxd4, Nxe3, Rxf2 (which fails badly to 31. Qxg6 Rxa2 32. 0-0!), d2+ and Nd6. I saw the potential back rank mate (which is why I looked at 30...Rxf2), but it took me forever to see 30...Rxb5!! Glad I didn't give up on this, very rewarding to finally solve it. This game shows that even when you find a brilliant move, you still have to work out the details and account for every reply, as in this game when White replied 31. Nc6+; fortunately the simple reply 31...Qxc6 not only wins the desperate knight, but it will win the queen too, as White needs to stop the mate. Of course, resignation is the logical choice.|
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