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| Nov-15-13 | | agb2002: Black is one pawn down.
The pawn on e3 reduces the scope of Black's heavy pieces. This suggests 22... Bxf4: A) 23.exf4 Qb6+
A.1) 24.Kf1 Ng4
A.1.a) 25.Be1 Nxh2+ 26.Kg2 Re2+ 27.Kh3 (27.Bf2 Qxf2+ and mate in two; 27.Kg3 Qg1+ 28.Kh3(4) Qg4#; 27.Kh1 Qb7+ and mate in two) 27... Qe6+ and mate in two. A.1.b) 25.Kg2 Qf2+ 26.Kh3 Qf3+ 27.Kh4 Nf2 and mate soon. A.1.c) 25.Be3 Nxe3+ again with a mate attack (better than 26... Nc2+ and 27... Nxa1). A.2) 24.Kg2 Re2+ 25.Kh3 (25.Kf1(3) Qf2#; 25.Kg3 Qf2+ 26.Kh3 Qxh2#; 25.Kh1 Qb7+ and mate in two) 25... Qe6+ and mate in two. A.3) 24.Kh1 Qb7+ 25.Kg1 Re2 26.Qf1 Qb6+ 27.Kh1 Qc6+ 28.Kg1 Qc5+ 29.Kh1 Qh5 30.h3 Ne4 looks winning (31.Kg1 Qg6+ 32.Kh1 Ng3+). A.4) 24.Be3 Rxe3
A.4.a) 25.Qc8+ Re8+ wins the queen.
A.4.b) 25.Kf1 Qd4 looks winning. For example, 26.Qc8+ Re8 27.Qc7 Qxb2 28.Qc3 Qe2+ 29.Kg1 Ne4 30.Qc1 Qf2+ 31.Kh1 Ng3+ 32.hxg3 Re1+ 33.Qxe1 Qxe1+ 34.Kh(g)2 Qe2+ 35.Kh3 Qb2, etc. A.4.c) 25.Kg2 Re2+ again with a winning attack.
B) 23.h3 Bxe3+ 24.Bxe3 Qg3+ 25.Kf1 Qf3+
B.1) 26.Bf2 Qh1+ 27.Bg1 Qxh3+ 28.Kf2 Ng4#.
B.2) 26.Ke1 Rxe3+ and White will lose the queen to avoid mate. B.3) 26.Kg1 Rxe3 with a winning attack. |
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| Nov-15-13 | | M.Hassan: "Difficult"
Black to play 22...?
Black is a pawn down.
I wrote 3 candidate moves:
22....Bxf4
22....Bg5
22....Qb6
The last one appealed to me the best as it pins the e3 pawn and f4 can be possibly captured by Bishop: 22............Qb6
23.Kh1 Ng5
24.Nc3 Qc6+
25.e4 Rxe4
26.Nxe4 Qxe4+
27.Kg1
if Black slips here and makes a faulty move, his attack will be aborted:
<27........Be7(assumingly) 28.Qc8+ Bf8 29.Qxg4> 27...........Qe2
28.Be1! Bc7 to block White Queen to rank 8
<if 28.Qxc7 Qxh2+ 29.Kf1 Ne3#> 28...........Qd2
29.Bb6+ Kh1
30.Qf1#
or
29.Bf2 Qxd2
time to check
===============
honestly, I like my line better |
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| Nov-15-13 | | Lykos: Classical I'd say.
The opening moves not difficult to find,but the "passepied" of the queen.. ! |
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| Nov-15-13 | | Nick46: <Phony Benoni: I don't know how significant it is, but this is our fourth puzzle this week (and ninth this month) from 1963.>
On Oct-18-13 I posted: <Nick46: 1963 seems to have been a vintage year for PsOTD.> |
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| Nov-15-13 | | Shams: <I thought the summer of love was 1967.> And Mott the Hoople didn't come around until 1969, but let's not quibble. |
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| Nov-15-13 | | Stormbringer: I dunno about obvious. I wanted to bring the rook to the C file to kick the queen and then take the pawn on b2 with the intention of attacking a1. Thought the bishop might intervene, but it could be deflected etc. Of course checkmate is better (and almost any knight move would have scuttled my plan). Oops. |
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| Nov-15-13 | | morfishine: A bit rushed today with the Anand/Carlsen match underway <22....g5> 23.fxg5 Bxh2+ 24.Kf1 Qg3 25.Be1 (25.gxf6 Qf3+ 26.Ke1 Bg3#) 25...Qf3+
26.Bf2 Ng4 27.Qe1 Nxe3+
click for larger view*****
PM(1): 22...g5 <23.Nc3> 23...gxf4 24.exf4 Bc5+ 25.Be3 Qxf4 26.Bxc5 Qg4+
27.Kh1 Qf3+ 28.Kg1 Kh8 29.Bf2 Rg8+ 30.Bg3 Nh5 31.Qe1 Nxg3 32.hxg3 Rxg3+ 33.Qxg3 Qxg3+ PM(2): Of course, 22...Bxf4 is best and there's bound to be holes in 22...g5 ***** |
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| Nov-15-13 | | gofer: I think black can win Pf4 for nothing because white cannot
take back!
<22 ... Bxf4>
<23 exf4 Qb6+>
24 Kg2 Re2+
25 Kf1/Kf3 Qf2#
25 Kh1 Qb7+ 26 Kg1 Qg2#
25 Kg3 Qf2+ 26 Kh3 Qxh2#
24 Kh1 Qb7+
25 Kg1 Re2
26 Qf1 Qb6+
27 Kh1 Rf2 
<24 Kf1 Ng4>
25 Kg2 Qf2+
26 Kh3 Qf3+
27 Kh4 Nf3
28 Qg1 Qh3+
29 Kg5 Ne4#
<25 Be3 Nxe3+>
Time to go quietly...
~~~
Hmmm, what's so wrong with 27 Rf2? Doesn't it swap off
into a simple mate? |
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Nov-15-13
 | | Penguincw: I knew I should not have played 22...Ng4! |
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| Nov-15-13 | | trnbg: Istvan Polgar - is this the father of the Polgar sisters? |
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Nov-15-13
 | | chancho: László is the name of their Dad. |
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| Nov-15-13 | | StevieB: <M.Hassan 22....Bg5 > Did you mean 22....Bc5? |
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| Nov-15-13 | | kevin86: I like how the queen "ladders" up to d4 |
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Nov-15-13
 | | Jimfromprovidence: I liked the prep work black did to set up 25...Re2. First is 23...Qb6+ to drive the king to h1 (24 Kf1 leads to 24...Ng4 with an overwhelming attack). Next comes 24...Qb7+ to prevent 25 Qc8. Finally 25...Re2 is playable. 
click for larger view |
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Nov-15-13
 | | fm avari viraf: I think, the puzzle looks less than difficult since the ostensible ...Bxf4 is the most logical continuation after which White has no adequate defence. |
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| Nov-15-13 | | actinia: <morfishine> I also came up with 22. ... g5 as a win for black. but I love flank pawn moves, especially in front of the king. It serves the important purpose though of opening up lines against the undefended king. the attack is bound to win because white is so underdeveloped |
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| Nov-15-13 | | John Abraham: Bishop sacrifice is tempting, however the proper continuation is harder to find |
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| Nov-15-13 | | fokers13: saw the queen check and knight invasion and decided i was winning. this week has been reasonably easy. |
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| Nov-15-13 | | lajube: <22...Bxf4 begs to be played. The arrangement of the pieces makes it obvious. Once you get that and see the queen check, it is then a cakewalk.> Cakewalk: Is that what the queen's dance is called :-] |
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| Nov-15-13 | | Patriot: 22...Bxf4 23.exf4 Re2 sure looks interesting, threatening 24...Qb6+. 24.Be3 Qb7 25.Bf2 Ng4 
24.Nc3 Qb6+ 25.Kh1 Qc6+ and mate in a few.
24.Nc3 Qb6+ 25.Be3 Rxe3 26.Qc8+ Re8+
24.Kf1 Rxh2 25.Kg1 Ng4 looks very strong.
I think this wins. |
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| Nov-15-13 | | Patriot: Well in my third line, 26.Qc8+ isn't possible since the knight is on c3. My visualization has really been lacking here lately! The game line is very sneaky! I don't feel too bad about not finding it. |
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| Nov-15-13 | | M.Hassan: <StevieB:<M.Hassan 22....Bg5 > Did you mean 22....Bc5?> Thanks for spotting the error, I meant <22...Ng5> to be one of the candidate moves |
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| Nov-15-13 | | sushijunkie: This motif is new to ME. Cool! |
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| Nov-15-13 | | morfishine: <Patriot> Good job nonetheless; Finding the "staircase" sequence doesn't mean thats the only solution <actinia> Glad someone else contemplated this move <22...g5> and so much the better if it holds up ***** |
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| Nov-15-13 | | Patriot: <morf> Thanks! To answer your question about 22...g5, Houdini likes it and is technically winning with a near 2 pawn advantage for black! |
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