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Dawid Janaszak vs Maksim Chigaev
European Blitz Championship (2017) (blitz), Katowice POL, rd 21, Dec-15
Indian Game: General (A45)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
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Nov-16-20
Premium Chessgames Member
  Check It Out: Thats a rare Monday bishop sacrifice
Nov-16-20  saturn2: 39..Bf5+ 40. Nxf5 (Kh2 Qh4) Rh1 is mate
Nov-16-20  Cheapo by the Dozen: A different kind of h-file mating sacrifice!

... Bf5+ pulls the knight out of the way, allowing the h-file mate.

Nov-16-20  Cheapo by the Dozen: White played a truly awful opening, giving away a couple of pawns for no good reason. I'm not sure why Black wound up returning the first pawn, but losing/giving up the second one allowed the mating combination.
Nov-16-20  Walter Glattke: A) 39.-Bf5+ 40.Nxf5 Rh1# B) 39.-Rh1+ 40.Nxh1 Bf5+ 41.g4 Bxg4+ 42.Kh4 Bf3+ 43.Kh3 Qg3# B2) 42.Kg2! Bf3+ 43.Rxf3 exf3+ 44.Kf1 Qc4+ 45.Kg1 B3) 41.-Qxg4+ 42.Kh2! C) 39.-Bf5+ 40.Kh2 Rh1# knight pinned 39.-Rh1+ not correct
Nov-16-20  Walter Glattke: Correction C) 39.-Bf5+ 40.Kh2 Qh4# not Rh1+ Kxh1
Nov-16-20  goldfarbdj: First attempt: Qxg3+. White takes the queen and Black has nothing.

Second attempt: Rh1+ to deflect the knight so that the bishop can check on f5. Wait a second, White can push the pawn to g4 and now there might be a mating attack but it isn't super-clear.

Third time is the charm: check with the bishop on f5, and after the forced knight capture now Rh1 is instant mate.

Nov-16-20
Premium Chessgames Member
  agb2002: Black has a bishop for a knight.

The knight controls h1. Therefore, 39... Bf5+:

A) 40.Nxf5 Rh1#.

B) 40.Kh2 Qh4#.

Nov-16-20
Premium Chessgames Member
  murkia: <Cheapo by the Dozen> Perhaps because it was a blitz game?
Nov-16-20  Brenin: Too easy for a Monday.
Nov-16-20  morfishine: A pure deflection
Nov-16-20  TheaN: Monday at its best... wait. No. A Bishop sacrifice? Sacrilegious :>. <39....Bf5+ 40.Nxf5 (Kh2 Qh4#) Rh1#>.
Nov-16-20  Brenin: White could (and should) have taken the b-pawn with 37 Rxb2, not Qxb2, though the response 37 ... e3 is unpleasant for him. After 37 Qxb2 Rd1+ he has to give up the N with 38 Nf1 Qb5 39 Kh2 Qxf1 to avoid mate.
Nov-16-20  TheaN: <murkia: <Cheapo by the Dozen> Perhaps because it was a blitz game?>

White's developing attempt early on is pretty abysmal though. Even in blitz you tend to play what you know.

After move 5 Black's already more than fine. Not winning, but having the tripled c-pawn structure <without> a hole on g7 must be better for Black, and White has yet to develop his king side.

Nov-16-20  zb2cr: 39. ... Bf5+ does it. White gets the choice of how he is to get mated next move:

40. Kh2, Qh4#. OR 40. Nxf5, Rh1#.

Nov-16-20  belgradegambit: Why not 39...Rh1+ then Bf5 mate?
Nov-16-20  Viking707: I saw 39....Rh1+ also as the win, and it would have mated just as well.
Nov-16-20
Premium Chessgames Member
  saffuna: I thought so, too. But 39...Rh1 40. Nxh1 Bf5+ is defended by 41...g4.
Nov-16-20  Brenin: I don't see 39 ... Rh1+ 40 Nxh1 Bf5+ 41 g4 leading to a win for Black, after either 41 ... Qxg4+ or Bxg4+. White is a R up, and Black has no forced mate that I can see. Black's best shot seems to be 41 ... Bxg4+ 42 Kg2 Bf3+ 43 Kf1 (43 Kg1 or Kh3 Qg4+) Qd6 (threatening Qd1 mate) 44 Qc2 Bxh1, when White's passed b-pawn will be hard to stop.
Nov-16-20
Premium Chessgames Member
  gawain: I first saw the right move, with the real mate 39...Bf5+ 40 Nxf5 Rh1# but I imagined that the K could instead escape safely to h2. (I overlooked the real mate 40 Kh2 Qh4#.) Then I imagined that the wrong move, 39...Rh1+, would mate by 40 Nxh1 Bf5+ but I overlooked the very real defense by 41 g4.

A good, simple puzzle--but a bad start to the week for me.

Nov-16-20  awfulhangover: I am one of those 39.-Rh1+ looneys to. Embarrassing :-)
Nov-16-20  Nullifidian: 39. ♗f5+ decoys the defender of the h1 square.

If the bishop is taken, then ♖h1# mates, and if the king moves out of check then ♕h4# mates.

Nov-16-20  mel gibson: <Nov-16-20
Premium Chessgames Member gawain: I first saw the right move, with the real mate 39...Bf5+ 40 Nxf5 Rh1# but I imagined that the K could instead escape safely to h2. (I overlooked the real mate 40 Kh2 Qh4#.) Then I imagined that the wrong move, 39...Rh1+, would mate by 40 Nxh1 Bf5+ but I overlooked the very real defense by 41 g4.

A good, simple puzzle--but a bad start to the week for me.>

Me too - I saw both moves - the Bishop check and the Rook check - I thought they were both winners until
I inspected the Rook move more closely.
I probably would have mucked that up in Blitz.

Nov-16-20  mlskdney: rook to h1 and once the knight is forced into taking it then bishop to f5 checkmate
Nov-16-20  Brenin: <miskdney>: I'm afraid that 41 g4 avoids mate and refutes the 39 ... Rh1+ line (see my earlier comment, and also those of <saffuna>, <gawain> and others).
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