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| Feb-27-13 | | Abdel Irada: <<•>The Knight Files: Logic Meets Fate<•>> In which Black's sacrificial thrust threatens mate on the g-file, White parries on the same, and Black ripostes for the victory on the b-file. It all begins with a little knight move:
<<•> 29. ...Nf3†30. gxf3 ... >
Choices there are none: This check also attacks the queen. <<•> 30. ...Qg5† (...Qg6† also works)31. Kh1, exf3 >
Now begins White's knight(file)mare. White can now defend logically or fatalistically. (It all comes out the same. ;-) ) * Logical
(I see a threat; I defend against the threat):
<<•> (1) 32. Rg1, Qxg1† > Fate is of course free to toy with its objects: 32. ...Rb1 also mates quickly. <<•> 33. Kxg1, Rb1† > Now we hear from the other knight file.
<<•> 34. Qd1, Rxd1# > Wit thou well that White seems destined to be mated on move 34. * Fatalistic
(I see that I can't stop the threat, so, since I'm the doomed defender and have no choice, I will delay as long as I can): <<•> (2) 32. Qxg7†, Qxg733. Rg1 ... >
Now this is the only move.
<<•> 33. ... Qxg1†34. Kxg1, Rb1# >
Here, to delay mate, White has sacced the queen which, in the other line, he now interposed to delay mate. The result: mate on move 34. |
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| Feb-27-13 | | Abdel Irada: <B) 30.Kh1 Qd6 31.g3 (31.gxf3 Qg6+ as in A) 31... Qh6 32.h4 Nxd4 33.exd4 g5, etc.> If the king is on h1, 31. ...Qg6 is not check. |
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| Feb-27-13 | | Abdel Irada: <Steve.Patzer: 32. ...Qxg1 is best. After 32. ...Rb1 white still has 33. Ra1> 33. Ra1 doesn't work because the rook on g1 is pinned, allowing 33. ... Qg2#, but White can delay mate with 33. Qxg7†, Qxg7, and it's back to the fated mate on move 34. ;-) |
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| Feb-27-13 | | Abdel Irada: In the above line, White also has 33. Qd1, leading to ... well, you've already guessed it. |
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| Feb-27-13 | | mistreaver: Wednsday.Black to play.Medium/Easy.29?
29... Nf3+
30 gxf3 Qg5+
31 Kh1 exf3
32 Rg1 Rb1 and white gets mated.
Time to check.
----
Yep, Rb1 also works, as well as Qxg1.
3/3 this week |
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| Feb-27-13 | | Abdel Irada: <patzer2: I suppose 29. Qd4? was the decisive mistake, allowing 29...Nf3+! which wins the Queen or forces mate.> It may also be that he couldn't accept the pawn sac with 28. Rxa5. I'd have to spend some time to confirm this, but Black gets a lot of dangerous play on the kingside. |
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Feb-27-13
 | | Oxspawn: I found this more straightforward than yesterday. Then the black queen was closed in, trapped and lost. Today the white queen is locked out of defence and the king is lost. All white's moves are pretty well forced and it is the horse DNA that does the damage. 29. Nf3+ gxf3 (forced by the queen fork)
30. Qg5+ Kh1 (forced)
31. exf
and I do not see any way for black to prevent white from mating on g2 |
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Feb-27-13
| | Oxspawn: Oh. I missed the last ditch defence (Rg1). I think I would have seen the response,but too late to claim that now. |
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| Feb-27-13 | | zb2cr: I hate to brag, but this may have been a personal best for how fast I solved a wednesday puzzle. Solution just seemed to jump off the screen at me, slap me across the face, and shout, "Here I am, dummy!" Now of course I will probably bomb the rest of the week, but this feels sweet! |
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| Feb-27-13 | | Abdel Irada: <Solution just seemed to jump off the screen at me, slap me across the face, and shout, "Here I am, dummy!"> Strangely, I heard it doing that.
You may want to soundproof your house a bit better. |
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Feb-27-13
 | | perfidious: A simple, but nice concluding combination. |
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| Feb-27-13 | | David2009: T Coleman vs P H Fields, 2011 Black 29...? "Fields medal" - future pun of the day?
Black wins with 29...Nf3+ 30.gxf3 Qg5+ 31.Kh1 exf3 32.Rg1 Rb1 forcing mate on g7.
Check:
====
click for larger view
Very prompt resignation. I join the "miss 32...Qxg1+" club. No doubt White saw it. |
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| Feb-27-13 | | avidfan: v29...Nf3+ 30.gxf3 Qg5+ 31.Kh1 exf3 32.Rg1 
click for larger view32...Rb1 demonstrates an unusually rare weak back
33.Ra1 Qg2#
click for larger view33.Qd1 Rxd1 34.Rxd1 Qg2# |
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Feb-27-13
| | doubledrooks: Black brings home the point with 29...Nf3+ and now: a. 30. Kh1 Nxd4 
b. 30. gxf3 Qg5+ 31. Kh1 exf3 32. Rg1 Rb1 and mate is coming up |
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| Feb-27-13 | | QueenMe: Like <Patriot>, I saw 29 ... ♘f3+ right away, but went with 30 ... ♕g6+ instead. I guess my instincts will always have me staying on the opposite color of the opposing queen, all other things being equal. And I also elected to finish by taking the rook on g1, then finishing by bringing the b-file rook downtown... I didn't like the idea of white's a-file rook being supported by the queen, so I simply chose the path the looked more hopeless for white. |
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| Feb-27-13 | | snakebyt: The first move Nf3+ I saw immediately but thought about follow up moves for a while. Hard to predict when your opponent is going to resign... |
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| Feb-27-13 | | Castleinthesky: An easy one for a Wednesday, as Nf3+ is the only move that produces an involuntary reply. |
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| Feb-27-13 | | SuperPatzer77: See diagram below:
click for larger viewWhite resigns in liew of 30. gxf3 ♕g5+, 31. ♔h1 exf3, 32. ♖g1 see below: 32...♕xg1+!, 33. ♔xg1 ♖b1+, 34. ♕d1 ♖xd1#
32...♖b1!, 33. ♖a1 (33. ♕d1 ♖xd1, 34. ♖xd1 ♕g2#) ♕xg1# (or ♕g2#). Thus, both 32...♕xg1+! and 32...♖b1! are good.
Instead of 30...gxf3, 30. ♔h1 ♘xd4, 31. exd4 ♕xd4 SuperPatzer77 |
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Feb-27-13
 | | kevin86: A stellar finish: 29...♘f3+ 30 gxf3 ♕g6+ 31 ♔h1 exf3 32 ♖g1 ♖b1 and mates... |
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Feb-27-13
 | | chrisowen: Nah crude linch pin er 32...Qxg1+ method in carry over d1# alive no more so questions 29.Qd4 cradle in a6 raid a vault queen out of harm's way in
32...rb1 we have queen interjection do the math in g4 or d1 manage mate in g2, ar golly queen statue in a6 or c1 cooed in pigeon d4 estimate a line green for heading light stumped by two- fold enter f3 as pitching i gate a slow roast cuffed at eg g2 rinding him off it zest in cougar on down e5 f3 isle go cast leg or leg rid iron it hand in bolter d4? incede the point cash in get going came it her g5 success in bad pirate swoop in g6 or g5 ides of marching g5 certainly claiming time oh in d4 had board it rule in cork stopper g2 b8 have b1 see please binged on key to believe it is do juggernaut i call us towed f6 in g5 bunch of grapes tell a machine cooking 30...qg5+ tingles son slide away in cap a 31.kh1 off terminal deck alive black deal ef3 tin card it d4 in grubbing silver white he in coughed up licked gold ie dab called in radical zone staccato in ducking h1 g1 absolve it brig in tool him ok 32...rb1 and ma 32...Qxg1+ clean classic ja double mack to knight e5 doff f3... |
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Feb-27-13
 | | agb2002: <SuperPatzer77: <agb2002: B) 30.Kh1 Qd6 31.g3 (31.gxf3 Qg6+ as in A) 31... Qh6 32.h4 Nxd4 33.exd4 g5, etc. > After 29...Nf3+!, 30. Kh1 Nxd4 (winning the White Queen) SuperPatzer77>
Thanks, Dave. I was just trying to extend a bit the direct, prosaic and short line 30.Kh1 Nxd4. Call it "Cat's play" or "a ludic approach to brutality"... |
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| Feb-27-13 | | bamaexpert: Thanks crisowen, your posts helped clarify this position for me. Again, thanks! |
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| Feb-27-13 | | ajax333221: 32...Rb1! pinning the white rook in g1 is not an easy move, this puzzle seems harder than 2/5 |
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| Feb-27-13 | | SuperPatzer77: <agb2002> You're profoundly welcome!! SuperPatzer77 |
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| Feb-27-13 | | Refused: I went for
29...Nf3+ 30.gxf3 Qg6+ 31.Kh1 exf3 32.Rg1 Rb1
I found the crosspin of the Rook on g1 to be more amusing than the mere 32...Qxg1+ |
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