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German Samuilovich Fridstein vs Lev Aronin
URS-ch sf (1949), Moscow URS, rd 5, Jun-??
King's Indian Defense: Orthodox Variation. Positional Defense (E94)  ·  1-0



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Kibitzer's Corner
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Dec-28-06  DicoStu: First...and solved it! After ...37: Kxf5 38: Bg6#
Dec-28-06  MaxxLange: uh, no....the second key move, 38. Bg6+, is needed for solving this.
Dec-28-06  chessmoron: Bg6+ is an important move and I found it.
Dec-28-06  ReikiMaster: Very nice optical illusion: attack on h5 wins the piece who appears to be protecting that square. If 40...Kh7 41.Bg8+ Kh8 42.Rxh6#. After 39...Qxe3 mate is forced but there isn't much else for white who is a piece down and under fire.
Dec-28-06  zzzzzz: this was pretty easy for a Wednesday
Dec-28-06  unclewalter: <zzzzzz> wake up! it's thursday.
Dec-28-06  black knight c6: 38. ... Kg7
39. Be4 wins safely I assume?
I saw Bh5+ and Bg6, didn't look at if that was completely sound for Kh8 but my intuition was right XD <ReikiMaster> I assume you mean there isn't much else for black?
Dec-28-06  AniamL: 37. Bh5+ Kxf5 38. Bg6# is one of the most interesting mates I can recall seeing! Too bad black has the option of going to h7...
Dec-28-06  Jole: I got it!

I agree that the mate threat on kxf5 is rather pretty

Dec-28-06  AbhinavAsthana: ♙I got it.!!!!♙
Dec-28-06  dzechiel: Found the first couple of moves right away, but not the entire combination. A very pretty dance between the rook and bishop.
Dec-28-06  ForeverYoung: I didn't see 38 Bg6+, but had 38 Bd2 for a response to Kh7.
Dec-28-06  Silverstrike: I got 37.Bh5+ Kh7 38.Bg6+, and didn't bother to look furthur, assumning that white would have an easy mate with furthur discoveries and moves like Bd4 etc. I don't know if that counts?
Dec-28-06  PawnOfTheDead: What happens after 38... Kh8? I can't see a quick mate or even a massive material gain.
Dec-28-06  kbaumen: Yay, it's the first time I solve a Thursday.
Dec-28-06  malthrope: <PawnOfTheDead: What happens after 38... Kh8? I can't see a quick mate or even a massive material gain.>

Probably just 39. Bd4 is good enough here! :-) For if 39... Bg7 then 40. Bf7 and the massive threats continue (the main threat now being 41. Bxf6 Bxf6 42. Rh5#). Now if 40... Qh4 then 41. Bxf6 > Rh5+ wins, or 40... Ne8 or 40... Nh5 then 41. Rh5# and Rxh5# respectively, etc. :-)

Dec-28-06  aldehyde: Kooool friday puzzle. i got into it to a good extend. then i stopped since i was sure that m going in right direction. and indeed i was going in a right direction.
Premium Chessgames Member
  alexmagnus: Got it!!
Dec-28-06  MaxxLange: I have to say I missed it....I saw the nice mate if 37...Kxf5?? but I thought that 37...Kh7 38. Rxf6? was good enough to win, and my softwares say that that's a draw at best after 38...Qxe3

Chess class is hard!

Dec-28-06  dfelix: Does 38. Bd4 work? An amusing continuation would be 38...Nxh5 40. Rxh5 and Black can't stop 41. Rg7+ Kh8 42. Rxh6# without dropping his queen.
Dec-28-06  Red Eyed Knight: aldehyde, Umm, it's Thursday, dude.

Chess is an amazing game. You dont even have to know how to tell the day of the week to be good at it.

Dec-28-06  TrueBlue: guys, if you haven't figure it out by now, it's Christmas week. That's why all puzles this week are easy!!!!!
Dec-28-06  Tacticstudent: Very very easy. no trouble on the resolution, since black's king has traveled along all kingside and his protectors are blocked by themselves and are of no use against the White rooks.
Dec-28-06  YouRang: Nice puzzle. I found the first moves pretty easily. Steps: (1) I saw the discovered check (if Bg4 moves), then (2) I noticed that I "can't" move Bg4 because it's guarding against KxRf5. But then I noticed the key: (3) after 37. Bh5++ (double check - important point) Kxf5 38. Bg6# is mate.

The real trick to this puzzle (and the part I couldn't see all the way) is to notice that you had to play 39. Bg6+! (the hasty 39. Rxf6 gives black time to counter-attack, getting at least a perpetual). This forces 38...Kg8, setting up yet another discovered double check (if 38...Kh8, then 39. Bd4! saves the Be3 and pins & wins the knight with check, with mate to follow).

Of course, after 38. Kg8 Rxf6, the poorly protected black king will be mated anyway by the swarming rooks and bishops.

Premium Chessgames Member
  kevin86: This was a neat version of the windmill theme-more like a zig zag theme. The white domination of the white colored squares is total,complete,and final!
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