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| Feb-23-10 | | avidfan: 32...Bd1! discovers an attack on the White Q/b2 while interfering with the Rook's defence of f1. The Black queen can infiltrate at f1 if the White queen moves away. This causes a deflection of the R/g3, which must intercept the attack on the king leaving f3 unguarded. The bishop at d1 now goes to f3 and delivers mate.
click for larger viewWould the bishop be described as a <desperado> ? |
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| Feb-23-10 | | Patriot: <<avidfan> Would the bishop be described as a <desperado> ?> The bishop "makes out like a bandit" but isn't a desperado. Hopefully this won't cause a semantics war, but I think most would agree a desperado is usually a trapped piece that has nothing better to do than to take out as much material and inflict as much damage as possible before being captured. |
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| Feb-23-10 | | kevin86: A sharp tactic:attack the queen and block the back row. Either the queen will be won or white will be (as in the text) mated. |
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Feb-23-10
 | | chrisowen: For white dire straits hes in. He eyes the rock e4 yet the mercury's rising and queen is under attack. Rook x-rays it so I see why Bd1 clops the knight over. 33.Qa2 telegraphs road for the killer queen Qf1+. Rook g1, a sore step he now rearranges the f3 flashing. |
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Feb-23-10
 | | Jimfromprovidence: <agb2002>
<B) 33.Nxd1 Rxb2 (33... Qf1+ 34.Rg1 Qf3+ 35.Qg2 + - [N vs P]) 34.Nxb2 Rd2 35.Rg2 (35.Nd1 Qe2 - +) Rxg2 36.Kxg2 Qe2+ and 37... Qxb2 - + [Q+P vs R].>This a deeper, very interesting line. After all, 33...Rxb2, below, seems inferior to the immediate 33...Rxd1. 
click for larger viewBut, after 34 Nxb2, black has 34...Rd2 below. (threatening 35...Qe2 with forced mate).
click for larger viewNow, if 35 Rcg1, black wins the knight with 35...Rxb2. If 35 Rg2, then 35...Rxg2 36 Kxg2 Qe2+ 37 Kg3 Qxe3+!, wins the rook instead. 
click for larger view |
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| Feb-23-10 | | agb2002: <Jimfromprovidence: <agb2002>
...
This a deeper, very interesting line.
...
If 35 Rg2, then 35...Rxg2 36 Kxg2 Qe2+ 37 Kg3 Qxe3+!, wins the rook instead.>If one day we co-author a book on tactics I'll contribute the deeply dubious lines :) |
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| Feb-23-10 | | Once: <Patriot: I think most would agree a desperado is usually a trapped piece that has nothing better to do than to take out as much material and inflict as much damage as possible before being captured.> Nicely put. It always makes me think of Butch Cassidy and Sundance Kid ... if you are cornered by an enemy army, you might as well go out all guns blazing. |
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| Feb-23-10 | | avidfan: Isn't checkmate the most extreme form of damage that can be inflicted upon an adversary? |
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| Feb-23-10 | | elohah: I am much more interested in the positional aspects of this game.His position is solid after move 25, yet the decision on the very next move is
suddenly absolutely crucial, indeed this is the CRUCIAL moment. White goes wrong with 26 dc? and later with 29 a3, after which, apparently, his
position collapses. |
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| Feb-23-10 | | elohah: Yes, it must be 26 de! and then 27 f5!
But he would then have to not fight on the d-file (the battle there has
already been lost) but shift all major pieces to the f and g-files for a full-out Kingside assault.
And this is what a CRUCIAL moment is all about. It imposes RESPONSIBILITY. |
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| Feb-23-10 | | Patriot: <<avidfan>: Isn't checkmate the most extreme form of damage that can be inflicted upon an adversary?> Yes, but 32...Bd1 is not a desperado. A desperado is a piece that is surrounded by enemy forces with no hope for escape and is in a desperate situation. 32...Bd1 is more like a discovered attack and interference tactic. Before that, the bishop is not threatened in any way so it's not a desperado. The bishop here does seem like an outlaw in some ways because it seems to do what it wants. It moves to a square where it would normally be taken but the fact that the queen is now hanging makes it a discovered attack. And the fact that it now interferes with the defense of f1, makes it an interference move. |
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| Feb-23-10 | | eric the Baptist: This was harder than a tuesday puzzle should be. |
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| Feb-23-10 | | wals: After several self-defeating moves, White imploded with 29.a3 (-5.20).
Better was g5 (-1.06).
courtesy of Rybka 3 1-cpu: 3071mb hash: depth 19:
and a neat checkmate! |
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| Feb-23-10 | | YoungEd: Somewhat surprisingly, the correct answer just leapt out to me, all the way to the finish! Why can't that happen over the board? |
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| Feb-23-10 | | YouRang: Jeez, I almost forgot about the daily puzzle! Thankfully, my friends here stepped up to answer it so that those who normally await my answer could at least stop holding their breath. Anyway, I'm happy to report that I got it. I first saw the idea of ...Qf1+ (it would be mate except that black can interpose with Rg1, or worse, take my queen with Rxf1). Then I noticed that black has a lovely discovered attack on white's queen by moving the bishop. All I need is a good place to move the bishop to. Only a moment of contemplating the above problems lead me to the solution: 32...Bd1! -- it answers both problems: If white moves his queen out of take, then 33...Qf1+ works because (1) ot blocks Rxf1 and (2) it's ready to answer 34.Rg1 with Bf3#. Not hard, but pretty because of the resourcefulness of the bishop. :-) |
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| Feb-23-10 | | MaczynskiPratten: <Caissas Clown: I bet white's 31.b3 was a slip of the finger>. I don't think so. If 31 Qb1 as suggested, Qe2 (and Rd2 if necessary) are horrible for White. White wants to keep his Queen guarding e2, so sac's the b pawn to give it an "escape" square at b2. Which allows the beautiful finish! |
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| Feb-23-10 | | stacase: <YouRang: Jeez, I almost forgot about the daily puzzle! Thankfully, my friends here stepped up to answer it so that those who normally await my answer could at least stop holding their breath.> First chuckle of the day, and it's really late for that sort of thing (-: |
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| Feb-23-10 | | turbo231: This puzzle is neat, a 3 mover mate. It took me at least 5 minutes to see it. I think it's more of a medium easy puzzle. What i had trouble with was when the rook came down and blocked the queen, of coarse the move was bishop f3 mate. Why did it take me at least 5 minutes to see bishop f3 mate? Don't answer that. I haven't played rybka yet, but i think rybka is going to be toast. |
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| Feb-23-10 | | Eduardo Leon: 32...♗d1 forces white to give up the queen, since 32.♕any ♕f1+ 33.♖g1 ♗f3#. |
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| Feb-23-10 | | Eduardo Leon: <chessgames.com>, Heute ist nicht Montag! |
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| Feb-23-10 | | WhiteRook48: 32...Bd1! that was easy |
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| Feb-23-10 | | WhenHarryMetSally: Got it. Waaaaaaaaaaaaaaaaay too easy for a Wednesday. way to seasy. |
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| Feb-23-10 | | YouRang: <WhenHarryMetSally: Got it. Waaaaaaaaaaaaaaaaay too easy for a Wednesday. way to seasy.> Tuesday for those of us who are time-machine deprived. |
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| Feb-23-10 | | ku0826: Discover attack follows clean checkmate. Nice puzzle. |
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| Feb-23-10 | | turbo231: Well i played rybka and it ended up queen and rook vs rybka's 2 rooks and a knight. I started to resign because i thought i was going to get mated but i thought what the heck and played it out. Miracle of miracles i won! That wouldn't happen again in a million years. I was able to get 2 passed pawns and used them against one of the rooks and the knight, then i saced my queen taking the other rook. The end game was hopeless for rybka, i had 4 pawns, rybka had 2 and i had a passed pawn on the A file that was the killer. This will never happen again! |
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