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May-12-11
 | | LIFE Master AJ: <<May-12-11 TheChessGuy: Here's the really neat thing: Denker found all of this in a blitz game. May-12-11
Patriot: <<TheChessGuy>: Here's the really neat thing: Denker found all of this in a blitz game.>
You're absolutely right! In 1939, I wonder what they considered blitz?> > This might have been two minutes per move ... that WAS considered blitz back then. I went to the Manhattan chess club when I was like seven or eight years old. They used to have a giant box on the wall. Someone stuck a key into it and wound it up and also set it. It would ring every 10, 20 or 30 seconds ... this was basically known as "Rapid Transit," back then, it was the fastest known form of chess ... "in dem dayz." |
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| May-12-11 | | ZUGZWANG67: <<Eggman>: Did Black have to play 16...Kxf7 or 17...Kg8?> 16...Nxf7 lets W play 17.Nxc7, winning at least the exchange. With the BN still at e5 there would come 17...Nf3+. Instead of 17...Kg8 B could have played 4 other moves and all of them give W the advantage. See my previous post or <agb2002>'s, which might be better organised than mine. I think that today's puzzle difficulty was the number of lines to consider. One does not expect so many lines on thursday. I found the solution only because I had time. |
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| May-12-11 | | cyclon: Tired and quite late here (something else important to do also), but my (quite speedy) try this time is; 16.Rxe5 (the Knight must be captured FIRST) -Qxe5 (what else by the way?) and only NOW; 17.f7+, a move that means 'cufflinks' because of; -Kxf7 18.Ng5+ Ke8 (-Ke7 is similar, but on -Kg6? 19.h4 is strong and -Kg8? 20.Qf3 MATES) 19.Qf3 and the threats like mate in 3 beginning with 20.Qf7+ plus moves like Bf4 combined with Re1/+ and Qxb7 - depending how Black moves - are just too much to bear for Black. White has MORE than enough ompensation for the sacrificed material |
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| May-12-11 | | cyclon: In the game continuation White played first 16.f7+, but after -Nxf7 (instead of the played -Kxf7) I don't see a quick forced win for White. Am I "blind" or something? |
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May-12-11
 | | Sastre: If 16...Nxf7, White wins material with 17.Nxc7 Qd8 18.Nxa8  . |
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| May-12-11 | | cyclon: Yes, okay there's simple 17.Nxc7 which seems to be good enough as someone earlier already posted. |
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| May-12-11 | | CHESSTTCAMPS: A fascinating tactical position from late opening / early middlegame. Material is even and both kings are vulnerable to local light square weakness, but white has the move and an extra rook in the fight. The first move that occurred to me was 16.Rxe5 to eliminate the troublesome knight, but I got intrigued by another forcing move 16.Nxc7, after which 16... Nf3+ 17.Kh1! (Kf1? Nxh2+ 18.Ke2?? Qf3+ 19.Kd2 c3+ 20.bc dc# ) Qc6 18.Re6 Qxc7 19.Qxf3 gives white control of the e-file, pressure from the f6 pawn, and a very strong initiative, but nothing quite immediate enough to be considered a solution. Knowing that the first instinct tends to be correct, I came back to the first candidate to work through the idea, and it seemed to click: 16.Rxe5! Qxe5 17.f7+! Kxf7 18.Ng5+ and now black's queen is on a bad defensive square, while white's Q+N push the king around: A) 18... Kg8? 19.Qf3 Qf6/e7 (otherwise 20.Qf7#) 20.Qd5+ wins. B) 18... Kf6? 19.Qf3+ Ke7 (Kg6 20.Qf7+ Kh6 21.Qh5#) 20.Qf7+ Kd8 21.Ne6+ Kc8 22.Ke8# C) 18... Kg6? 19.Qf3 Qe7/e8 (otherwise 20.Qf7+ forces mate) 20.Qf5+ Kh6 21.Nf7# C.1) 19... Qe1+ 20.Kg2 (as in lines A & B) just delays result one move. C.2) 19... Kh6 20.Qh3+ Kg6 21.Qh5+ Kf6 22.Qf7#
D) 18... Ke7 20.Qf3 Qf6 21.Qxb7 Rd8 22.Bd2! c3 23.Qxc7+ Rd7 24.Re1+ wins D.1) 20... Qe1+ 22.Kg2 and there is no good defense against 23.Qf7+ (Kd6 24.Bc4+). E) 18... Ke8 19.Qf3 Bd6!
Oops I can't seem to break this defense. The best I can find is 20.Qf7+ Kd8 21.Bf4 Qe7! 22.Re1 Qxf7 23.Nxf7+ getting the exchange back, but a pawn down. This can't be right - there must be something simpler. I've hit my time limit - time to review. Avram-Mouzon was the first game between rated masters that I observed on a demo board at a tournament. |
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| May-12-11 | | CHESSTTCAMPS: Had the right idea, but missed the order of moves! Had the same blind spot as <cyclon>. |
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May-12-11
 | | scormus: TuxedoKnight: my fav. game with an astonish end!> Incredible finishing position. I never saw it coming |
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| May-12-11 | | CHESSTTCAMPS: Testing against Crafty, my line 16.Nxc7 Nf3+ 17.Kh1! Qc6 18.Re6 Qxc7 19.Qxf3 is stoutly defended by 19...Qf7! |
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| May-12-11 | | Overzealous: In case anyone missed it earlier, my analysis with Rybka shows that 17...Kf6 18 f4 Bc5! leaves Black "only" a piece down, and White has another winning move in 16.Bf4 Qxe6 17.Bxe5 gxf6 18.Bxd4 as he will win at least two of Black's weak pawns, and exchange to an endgame, for example 18...Qf7 19 Qf3 Bg7 20 Qxb7 Rd8 21 Bxa7. |
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| May-12-11 | | jahhaj: Spent too much time looking for flashy tactics which don't work. Got it when I started looking for straightforward attacking moves, f7+, Ng5+ and Rxe5 are all obvious possibilities. Eventually I spotted 19.Qf3 and didn't see how Black could defend d5 and f7. |
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| May-12-11 | | jahhaj: Oops! I had 17...Kf6 18.Rxe5 Qxe5 19.Qf3+ as winning but missed 18...Kxe5. |
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| May-12-11 | | dzechiel: <<LMAJ> It would ring every 10, 20 or 30 seconds ... this was basically known as "Rapid Transit," back then, it was the fastest known form of chess> I have never witnessed this form of blitz, but I have read accounts of "rapid transit" chess. You were expected to make your move in tandem with the bell. Apparently, the first few seconds of each move was spent arguing that your opponent had failed to make his previous move with the bell... |
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| May-12-11 | | Jesspatrick: As a former practitioner of the Max Lange Attack, the position was almost instantly familiar. Unfortunately, the theory in this opening favors Black with best play. |
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| May-12-11 | | patzer2: In addition to 16. f7+!, White also wins with 16. Bf4! and 16. Nxc7  is surprisingly strong for white and may also be winning. I have 16. f7+! in my demolition combination collection. However, with mating possibilities after flushing the King out in the open, such as 16. f7+ Kxf7 17. Ng5+ Kf6 18. f4! Nf3+?? 
click for larger view19. Qxf3! Qxf3 20. Re6#, it might also be classified as a mini pursuit combination. |
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| May-12-11 | | rilkefan: <I have learned too much> This advertising hasn't gotten less tiresome to me. |
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| May-12-11 | | sevenseaman: <This advertising hasn't gotten less tiresome to me.> Yes, it is assuming toxic levels, invidiously attacking the senses and sensitivity. |
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| May-13-11 | | TheBish: Denker vs H Avram, 1939 White to play (16.?) "Medium"
I figured right away that f6-f7+ would be involved, either immediately, or as possible mate threat after Rxe5 somehow. Not seeing the latter, I was able to find a win employing my original idea. 16. f7+! Kxf7
Drawing the king out to attack, as 16...Nxf7 now allows 17. Nxc7 without worrying about Black playing ...Nf3+. 17. Ng5+ Kg6
Or 17...Kg8 18. Rxe5! Qxe5 19. Qf3 Qf6 (or 19...Qe7) 20. Qd5+ and mate next. Of course, moving the king to the e-file allows simply 18. f4 or Bf4. 18. f4 Nd7 19. Re6+ Qxe6
Or 19...Nf6 20. f5+ Kh6 21. Nf7#.
20. Nxe6 and White wins easily. |
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May-13-11
| | LIFE Master AJ: <<<<May 12, 2011> dzechiel> I have never witnessed this form of blitz, but I have read accounts of "rapid transit" chess. You were expected to make your move in tandem with the bell. Apparently, the first few seconds of each move was spent arguing that your opponent had failed to make his previous move with the bell... > >"Apparently, the first few seconds of each move was spent arguing that your opponent had failed to make his previous move with the bell..." (True!) There were two older players there, one had to have been in his eighties, possibly even his nineties. And apparently the older player was very good, maybe even a master once. The older gentleman generally played with a guy who was probably in his sixties. ... ... ... they argued constantly.
I remember distinctly, one older (Jewish) gentleman saying something unintelligible in Yiddish, and then he told me, (with a dismissive wave of his hand - at the other two - with a distinctly think accent); "Ahhh, they should get married." Back then - I had no clue what he was talking about. |
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| May-13-11 | | AnotherNN: Surely, as has been pointed out before, playing 16.f7+ first gives Black the choice of 16...Nxf7 and then 17.Nxc7 nets only the exchange for White. I chose 16.RxN which should be the first move since that at least wins a whole piece. And yeah, I found 19.Qf3 too, though I had to look at it for the umpteenth time before I realized the game was already won. |
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May-13-11
| | LIFE Master AJ: I actually won a RT tourney (for kids) when I was like 10 years old. --- I was always decent at fast chess. |
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| Jul-26-14 | | GeneM: This game is shot puzzle #452 in Fred Reinfeld's book 1001 Winning Chess Sacrifices and Combinations, after the actual moves 17. Ne6-g5+ Kf7-g8?. I played around to declutter this position down to its essence. Later I was reminded I had done this when I read the two ChessBase dot com articles about "constructs" by Dr. Azlan Iqbal. Here is the http to the second article (remove the spaces) http:// en.chessbase . com/ post/ best-chess-constructs-by-chessbase-readers ---- Decluttered position FEN (remove the spaces)
5bkr/ 6pp/ 8/ 3qn1N1/ 3p4/ 8/ 2P5/ 2BQR1K1 w - - 0 18 
click for larger viewWinning shot move is 18. R:e5/N!
By the way, for my (unflattering) review of the 2014 updated edition of this classic Reinfeld book, see (remove the spaces) http:// www.chesspub . com/ cgi-bin/ chess/ YaBB.pl ?num=1403852688 Thanks. GeneM. 2014-July-26.
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May-02-15
 | | Phony Benoni: It turns out this was not a blitz game. It just looks like one. Instead, it was played in round 8 of the Manhattan Chess Club Championship, on January 28, 1940. ["Chess Review", March 1940, p.34] |
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Jul-06-16
 | | MJCB: The last move Qf3 impressed me a lot. Simple but deadly. |
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sac: 18.Rxe5