< Earlier Kibitzing · PAGE 4 OF 4 ·
|May-25-10|| ||Patriot: As my coach would ask, "What is black's goal?" Given the huge material deficit, black must either find a win immediately or find a draw or resign! It's clear there is no win so how about a draw? Thankfully blacks pawns are frozen and the black king is immobile. Now all he has to do is toss the queen such that the d2-square is covered. 53...Qc1+ 54.Qxc1 fits the bill since black is in stalemate.|
<goodevans> I agree that 53...Qc1+ is not a swindle. On 52...Qd2+ white could have played 53.Kg3 but that allows a draw by perpetual. A draw is forced. By contrast in yesterday's game, black was way ahead when he blundered and allowed a swindle.
|May-25-10|| ||StevieB: Stalemates never get stale, especially when losing.|
|May-25-10|| ||chrisowen: The super king warrens a rabbit hole on d3. It dawns in time the toll Yacov er pays for exposed king is only a draw. Seconds away from
a terrible heavy piece collision the queen desserts the nest TPow 53.Qc1+ and looks like shanghaied her counterpart into exchanging. She
hot foots it down as a sign of the times not risking the endgame resulting in stalemate.|
|May-25-10|| ||YetAnotherAmateur: Black is clearly looking to draw. One obvious option is perpetual check - the king is stuck in his corner, and the queen can move fairly freely.|
However, then I saw that Qc1+ works far better, because white must capture the queen (or he loses his queen and the game), and when he does so, it's immediate stalemate.
|May-25-10|| ||patzer2: For today's Tuesday puzzle solution 53...Qc1+! is a stalemate.|
Black may well have seen the possibility of the draw by perpetual or stalemate as early as 48...Rd2+!
|May-25-10|| ||kevin86: I answered the puzzle with the same thematic move as yesterday. Qc1+ forces Qxc1 stalemate.|
Whiteshark's answer is NOT ♖e6? as after ♕xe6,the juicy pin ♘c5+ is impossible because of the pin. OK,WS,what is it?
|May-25-10|| ||dzechiel: <goodevans: <WhiteRook48: nice stalemate swindle>|
I think you do Murey a disfavour. The term <swindle> implies a cheap trap that careful play can avoid. As far as I can see, Murey's last half dozen moves were quite accurate and white couldn't avoid the draw.>
I gotta agree with <goodevans> here. When looking at the static position it's not obvious that rather forced play has brought us to the position. But black has a draw in any case, even if white sidesteps the stalemate, so the term swindle is inappropriate here.
|May-25-10|| ||whiteshark: <kevin86> Have a second bite, pls. :)|
|May-25-10|| ||Brandon plays: Black is losing and horribly. So, Qg2 was the first thing that popped into my mind, but then the black king can move down which would be checkmate. So, Qc1+ saves the day.|
|May-25-10|| ||atakantmac: for 2 days you want to find a draw.Interesting but easy|
|May-25-10|| ||turbo231: It took awhile because we had a stalemate yesterday. Would this be considered a swindle just like yesterday. I feel swindled.|
|May-25-10|| ||chrisowen: <patzer2 48..Rd2+!> Audi do this..vorsprung durch technik or a leap in good faith? What's your take on 39..Rxc5? Still a draw? Shame about that motionless pawn, no howitzer will unblock it. Stalling communal gains whilst taking a front seat ide fathom. OK das gud swindle!|
|May-25-10|| ||ohfluckaduck: Same theme today as yesterday. The king is stalemated, now how do I rid myself of my queen and still the keep the stalemate?|
|May-25-10|| ||parmandil: Nice problem, <whiteshark>! The first thought is 1.Re6 Qxe6 2.Nc5+ which does not work as the knight is pinned.
The second attempt is 1.Nc5+ Qxc5 2.Ra3+ Kb6 3.Rb3+ Kc6 4.Rc3 which fails to Bxc3.|
Looking for stalemate configurations, there is one with the black queen on b3 stalemating the white king at a1, and the white pawn on d4 being pinned by the bishop.
Another stalemate configuration is given by removing white rook and knight, and putting the black queen on d3. Aha! This leads to the following variation:
1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+Kc4 4.Rc3+ Kd5 5.Rd3 Qxd3 and stalemate!
Other black first moves must take into account that white is threatening both 2.Re6+ and 2.Ra3+ followed by 3.Rb3. There are no black checks, king moves do not help, so the queen must leave both the b-file and the 6th rank. Going to the c-file does not help because of white checks on the 3rd rank, so the only remaining chance is 1... Qd8 2.Ra3+ Kb7 3.Rb3+ Kc8 4.Rb8+! followed by Nc6+, and again it is a draw.
|May-25-10|| ||Marmot PFL: Not hard, but still entertaining. Very clever the way black set this up.|
|May-25-10|| ||YetAnotherAmateur: <Kasputin>If ... Qd2+ Kh3 Qd1, white gets out of the trap (because black hasn't checked him) with Qxa6+. Although there are a lot of things black can do in response to that, the perpetual check is busted.|
|May-25-10|| ||Kasputin: I missed this one. I thought that black had a perpetual in a different way, but I must be smoking something. Here is what I thought - with a correction to my mistaken thinking in square brackets.|
"53...Qd1+ and I think black can force a draw. Unless I am wrong, black has a perpetual by shuffling the queen back and forth between d1 and d2.
If white moves over to h3 as a response to one of the ...Qd2 checks, then black can play ...Qd1 with the threat of playing ...Qh1 and mate. [Duh. That wouldn't be mate at all. And white could just play Qxa6+ in any case.] White has to drop the king back to the second rank, allowing once again ...Qd2+ (there is no effective queen or rook move).
If white sneaks the king over to f3 (after being checked by ...Qd2) then ...Qf4+ and white has to move the king back to g2, once again allowing ...Qd2+
Finally if white moves to g3, then black again responds with ...Qf4+ At this point moving back to g2 with Kg2 once again sets up ...Qd2+. Alternatively moving the king to h3 allows ...Qf1+ and as far as I can tell black keeps checking the king from there by using the f1, f2, and f4 squares depending on where white plants his king. I think there are other ways to do this too (e.g., by employing the f3 square), but I've seen enough to be convinced."
|May-25-10|| ||Kasputin: <YetAnotherAmateur> yes you are quite corect. As soon as I posted my flawed thinking and saw the correct move, I deleted my post in order to include a correction.|
|May-25-10|| ||whiteshark: <parmandil> I couldn't have said it any better!|
<1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+Kc4 4.Rc3+ Kd5 5.Rd3 Qxd3 and stalemate!> was the main solution and I think the final position is worth a diagram:
click for larger view
It's a study from <Leonid Kubbel>, published in 1921. Look how the longranging ♕+♗ cover all surrounding squares and how the last pawn is blocked.
Maybe more tomorrow... :D
|May-25-10|| ||fm avari viraf: The Stalemate tactics continue 53...Qc1+ 54.Qxc1=|
|May-25-10|| ||randomsac: cool stalemate. It's good to know when it's time to salvage a draw.|
|May-25-10|| ||LIFE Master AJ: Black - a Rook down - is obviously playing for a draw. 53...Qc1+; forcing White to take ... and deliver a nice stalemate ... is the correct idea.|
|May-25-10|| ||wals: Another success. WOW!
Let's see what Rybka can make of the game.
Rybka 3 1-cpu; 3071mmb hash: depth 18:
Black, material even.
1. = (0.11): 32...Qe2+ 33.Kg3 Qd1 34.Qb2 Qg1+ 35.Kh3 Rc7 36.Qf2 Qa1 37.Qd2 Qg1 38.Qe3 Qb1
2. = (0.19): 32...Rf8 33.h3 Qe2+ 34.Rf2 Qe4+ 35.Kh2 Kh7 36.Qd2 Qb1 37.Kg2 Qe4+ 38.Rf3 Kg8 39.Qe3 Qb1
3. = (0.19): 32...Re8 33.h3 Qe2+ 34.Kg3 Qd1 35.Rf2 Qb1
4. = (0.20): 32...Rc6 33.h3 Qe2+ 34.Kg3 Qd1 35.Rf2 Qb1
5. = (0.20): 32...Rc7 33.Qe3 Rc8 34.h3 Rc7 35.Rf1 Qc2+ 36.Kg3 Qa4 37.Qc3 Qb5 38.Rc1 Rc8 39.Rc2 Qf1
+2.54 40...Kf7. Black deeper into the mire.
1. (1.13): 40...Rxc5 41.Rxf6 Kg7 42.Rxa6 d4 43.Rd6 Rxa5 44.Rxd4 Ra2 45.Rxd3 Rxh2 46.Rd7+ Kg8 47.Kg3 Ra2 48.Kh4 Ra5 49.Rc7 Kf8 50.Rh7 Rd5 51.Rb7 Rc5
2. (1.38): 40...d4 41.Rxf6 Kg7 42.Rd6 Rxc5 43.Rxd4 Rxa5 44.Rxd3 Kf7 45.Rb3 Ra1 46.Rb7+ Ke6 47.Rb6+ Kf7 48.Kg3 Ra4 49.Kh4 Ra5 50.Rd6
White, material even, errs,
+0.83 41.c6. Better, Rxa6, or Ke3, each +2.54.
White, material even, downgrades further.
1. (0.58): 44.Kd2 Rh8 45.h3 Rxh3 46.c7 Rh2+
2. (0.43): 44.Rxa6 Kc4
White lost the game at move 41.
Whether 46.h5 or hxg5 would amount to anything is a moot point.
|May-25-10|| ||micartouse: I saw Qc1+ right away and then stared at the board deciding if Black was really playing for a draw with equal material. It took me at least 20 seconds to realize Black was actually down a rook.|
|May-26-10|| ||kevin86: <whiteshark> Brilliant problem!!|
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