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|Nov-02-15|| ||CHESSTTCAMPS: White is down a pawn with the h7 pawn near promotion, but the black knight both blockades it and defends the f7 pawn. White's "natural" plan might be to bring the king to g7 to win the knight, but black would win a pawn race on the queenside.|
Instead, white can win quickly with 53.Nxf7! Nxf7 54.e5 Kb7 (Nxe5 55 h8=Q+ wins the knight. Now the black king is still inside the square, but...) 55.e6 and one of the pawns must promote.
A closer ending is 53.Nxc6? Kb7 54.Na5+ where white still has the winning chances. This would be a good study for advanced students to establish a win or a draw.
|Nov-02-15|| ||keypusher: I remember this from Robert Byrne's New York Times column. Quite a shock for Korchnoi to lose to an unknown Indian player!|
|Nov-02-15|| ||starry2013: There may well be several ways to win, but if not careful you could screw it up to an extent. So I think this is harder than a normal Monday for sure.|
Second line I played against the computer I moved my king up to attack it's knight.
|Nov-02-15|| ||Mating Net: A Knight on the rim is dim. A Knight in the corner is useless.|
|Nov-02-15|| ||Once: That was fun. After the knight "sacrifice", a cheeky little pawn push (54.e5) and black can't stop both passed pawns.|
Knights are usually wonderful in crowded middlegames but considerably less good in (some) passed pawn endgames.
|Nov-02-15|| ||varishnakov: 53.Nxf7 NxN 54.e5 and a pawn will queen.
Disturbingly difficult for a Monday.
|Nov-02-15|| ||devere: <varishnakov: 53.Nxf7 NxN 54.e5 and a pawn will queen.
Disturbingly difficult for a Monday.>
I saw it, but wouldn't call it "very easy" If the Black King were one square closer it would fail.
|Nov-02-15|| ||perfidious: Not difficult overall, but hardly a typical Monday POTD.|
|Nov-02-15|| ||thegoodanarchist: For the third time this year, I am saying this is the hardest Monday puzzle ever.|
Bad choice of a puzzle for Monday.
|Nov-02-15|| ||kevin86: Two things happen here: though black's king is inside "the square" the pawn attacks the knight and gains a valuable tempo to remove the king fron said square.|
Second, the knight is in such bad position- he cannot stop the one pawn while holding the other pawn back.
|Nov-02-15|| ||starry2013: Like Once and varishnakov I thought just push the pawn at first. But if you don't move your king up it's more difficult. The black king is in time.|
Here's a way to mess up (the opposite of a solution)
|Nov-02-15|| ||rozzatu: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaargh! And this was the monday puzzle!|
|Nov-02-15|| ||zanzibar: I like <starry2013>'s comments about ...Ng6. |
Slight alteration makes for a different solution:
(White to play)
click for larger view
|Nov-02-15|| ||zanzibar: (Black to move after 42.Qc8-g4)
click for larger view
Knights on the rim aren't always dim, one might say, if they go away.
(Black has one move to keep an advantage - i.e. sharp position)
|Nov-02-15|| ||zanzibar: The NYTimes article mentions Black going astray at 40 (as do other posters), but doesn't mention how Black could still save the game at move 41 (see above).|
|Nov-02-15|| ||lost in space: I love Mondays, especially when being in Italia, eating nice food and drinking redwine.|
53. Nxf7 and no defence.
|Nov-02-15|| ||patzer2: <Zanzibar> Deep Fritz 14 @ 26 depth shows 41...Nxe1 = (move played) and 41...Qxe1+ = both leading to a level game.|
Where Black's game starts to go from level to losing is with 42...Qxg4+? (-1.49 @ 27 depth, Deep Fritz 14). Instead, 42...Qh2+ 43. Kxe1 Qxb2 = (0.00 @ 26 depth) holds it level.
Earlier, 40...Qf3+! would've won for Black.
|Nov-02-15|| ||Richard Taylor: Good thing I didn't try to do the insane one as I missed White's second move. Mind you I was up late analyzing a game where I thought I had blundered and it turned out I was under an illusion and was in fact = so my excuse in this very easy Monday one is fatigue. |
Or is it simply called stupidity?
I thought the K could do the business although I did wonder if Black's a pawn might Q. Not so easy if you don't play e5 on the second move. Chasing the N with the K nearly loses the game!!
|Nov-02-15|| ||Richard Taylor: I saw the N sac tho - in fact I've played combinations like this myself to win games. Ridiculous I didn't see 2 e5 immediately. I'm getting old...|
|Nov-02-15|| ||patfoley: My first thought was 53 Kf4 f6 54 Kf5 fxe 55 Kf6 ... 56 Kg7 etc., but I was too lazy to calculate the pawn race. It looked like a win for white.|
|Nov-02-15|| ||patfoley: It looks like my N sacrifice also wins.|
|Nov-02-15|| ||zanzibar: <patzer2> yes, typo on my part ... typing 41 when I meant 42.|
The position I gave in the illustration in the previous post does correctly give the move as 42, with the solution you give (42...Qxh2+).
Of course Korchnoi really messes up at move 40, squandering a won game... but the knight sac at 41, leveraging the b6-pawn, is a nice defensive problem.
|Nov-02-15|| ||Bubo bubo: White creates another passed pawn with 53.Nxf7. Black has to capture, but after 53...Nxf7 54.e5 he is unable to stop both pawns: The black king may enter the e-pawn's square with 54...Kb8, but only for a moment, as 55.e6 gains the decisive tempo: 55...Nh8 56.e7 or 55...Kc8 56.exf7 (or 55...N~ 56.h8Q)|
|Nov-03-15|| ||patzer2: The most difficult aspect of yesterday's Monday puzzle might be finding a clear losing move. |
The only losing move out of 15 choices, according to Fritz, is 53. Ng6?? In contrast, 53. Nxf7 is the strongest winning move.
|Jul-30-17|| ||clement41: I simply am fond of this game. So tense, so much action going on, and what an endgame!|
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