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Alexander Ilyin-Zhenevsky vs Fedor Parfenovich Bohatirchuk
USSR Championship (1924), Moscow URS, rd 6, Aug-??
Spanish Game: Steinitz Defense (C62)  ·  0-1



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
May-21-17  Iwer Sonsch: I found 46...h3.

A) 47.Kxh3 Rxh5+ 48.Kg4 Rxh1 wins.

B) 47.gxh3/Rxh3 Rg8+ 48.Bg6 Rxg6+ 49.Kh5 Bxf5 or ...Re6 wins the Bishop.

C) 47.B-any Rh4#.

D) Black threatens 47...Bc5 and 48...hxg4.

E) 47.Rh2 Rg8+ 48.Kh3 Rg3#.

F) 47.g3 fxg3 looks hopeless for White. Both pawns are immune (48.Kxg3 Rxh5; 48.Rxh3 Rg8+) and about to queen.

May-21-17  Walter Glattke: Providence, where they see the total eclipse of the sun: I think, 47.-Bxb4 48.Kg5 hxg2 47.Rg1 Rg8+ 48.Kf6 Bc5 + 48.Kh4 Be8 50.Ng7 hxg2 51.Rg1 Be7+
52.Kg4 Bxh5+ 53.Nxh5 Rg8+ 54.Kh3 Rg5!
May-21-17  patzer2: I miss the stories <Once> used to describe the problems and dilemmas presented by the daily chess puzzles.

For today's Sunday puzzle solution 46...h3!!, the poisoned pawn offer reminded me of the plot for the 1994 movie "Speed."

As you might recall, in that movie a bomber has rigged a bus carrying passengers to explode once its speed falls below 50 MPH. The bomber demands a $3 million payment for remotely defusing the bomb and keeping the passengers safe. Any attempt to save the passengers or defuse the bomb will result in the immediate detonation of the bus and the death of the passengers.

In the movie, the heroes on the police force find a clever way to fool the bomber and save the passengers before the bus safely explodes.

Unfortunately for White in this game, once Black puts the metaphorical bomb in motion with 46...h3!! there's no way to stop it without losing. If White tries to capture the pawn, Black wins decisive material. If White leaves the pawn alone, then Black will also win decisive material as White attempts to prevent the pawn from promoting.

P.S.: Stockfish 8 confirms, as was discussed here in 2005, that 45. Bxh5? allowing 45...Rh8 (-2.43 @ 41 depth) is the losing move. The saving move, as also discussed in 2005, is 45. Kxh5 = (+0.08 @ 42 depth, Stockfish 8)

Premium Chessgames Member
  agb2002: Black has the bishop pair for a bishop and a knight.

The square h3 is available for the white king. This suggests 46... h3:

A) 47.gxh3 Rg8+ 48.Bg6 Rxg6+ 49.Kh5 Rg5+ 50.Kh6 (50.Kh4 Rg1+ 51.Nxe7 Rxh1 - + [r+b vs N+P]) 50... Bxf5 51.exf5 Rxf5 - + [b].

B) 47.Rxh3 Rg8+ as above.

C) 47.Kxh3 Rxh5+ 48.Kg8 Rxh1 wins.

D) 47.Bg6(f7,e8) Rh4#.

E) 47.g3 fxg3

E.1) 48.Kxg3 Bxf5 49.exf5 Rxh5 wins a bishop for a pawn.

E.2) 48.Rxh3 Rg8+ 49.Bg6 Rxg6+ 50.Kh5 Bxf5 51.exf5 Rg6+ followed by g2 wins.

E.3) 48.Bg6(f7) g2 followed by h2 wins.

F) 47.Rh2 Rg8+ 48.Bg6 (48.Kxh3 Rg3#) 48... Rxg6+ 49.Kh5 Bxf5 wins.

G) 47.Rg1 Bc5 followed by hxg2 wins the rook (48.Rb1 hxg2 49.b4 g1=Q, etc.).

H) 47.Ra1 Bc5

H.1) 48.gxh3 Rg8+ 49.Bg6 (49.Kh4 Bf2+ 50.Ng3 Bxg3#) 49... Rxg6+ as in A.

H.2) 48.g3 h2 49.Rh1 (due to Bg1) 49... fxg3 50.Kxg3 (due to g2) 50... Rxh5 wins a piece for a pawn at least.

H.3) 48.Bg6(f7) hxg2 wins.

May-21-17  Walter Glattke: Hi, Jim, 47.-Bxb4 48.Kh4 Be8 50.Ng7 hxg2 51.Rg1 Be7+ 52.Kg4 Bxh5+ 53.Nxh5 Rg8+ 54.Kh3 Rg5 55.Nxf4 exf4 56.Rxg2 1 Piece 48.Kg5 Bxf5 50.exf5 Rg8+ 51.Kf6 hxg2
52.Rg1 Bc5
May-21-17  mel gibson: I can't be bothered working that out -
it's too hard.
the computer says:

46. Rh1 h3 (46. .. h3 (h4-h3 g2-g3 f4xg3 ♔g4xg3 ♗d7xf5 e4xf5 ♖h8xh5 ♖h1xh3 ♖h5xf5 ♖h3-h7 ♔c7-d6 b2-b3 ♖f5-f6 ♖h7-g7 ♔d6-e6 ♔g3-g2 ♖f6-f4 ♖g7-g6+ ♔e6-d5 ♖g6-g7 ♗e7-d6 c2-c3 e5-e4 f3xe4+ ♔d5xe4 ♖g7-g8 ♖f4-f6 ♖g8-g4+ ♔e4-e3 c3-c4 ♖f6-f2+) +4.39/22 169)

Score for Black +4.39 depth 22

May-21-17  clement41: I believe Bohatyrchuk is an underrated player. A few remarks on the game in general. Perhaps 11 Bxd7+ Qxd7 was better, keeping the move to white instead of ceding it to black. 20 Bb5+!? looks good strategically: aimed at provoking ...c6 in order to gain d6 for the knight, hence the logical follow-up: 20...c6 21 Bc4!? which does many things: threatens to take away black's B pair while damaging his pawn structure; if black trades on c4 then he helps white achieving his mini-plan of putting a knight on d6. 23...b6!? √† la Steinitz to limit white's Nb3. (a4-a5 ti challenge that pawn then looks appropriate). How about 26 g4: fighting against ...f5 and admittedly it weakens f4, but black has no more knights to post there! However then ...h5 looks good 33 a4 it looks to me like a4 should have been played earlier to prevent ...b5
May-21-17  Iwer Sonsch: Black's 44...h5!? was a gamble, offering 45.Kxh5! (0.07 @depth 40) but witnessing 45.Bxh5? (-1.95 @depth 40).

Instead, 44...Rd8 45.Rd3 Rf8 46.Bg6 h3 47.Kxh3 Rg8 (-0.55 @depth 34) would have guaranteed a slight advantage for Black.

click for larger view

May-21-17  devere: <clement41: I believe Bohatyrchuk is an underrated player.>

He had a +3 -0 =1 lifetime record against Botvinnik. That might be the best ever lifetime score of an IM against a world champion.

May-21-17  Walter Glattke: Clement 41, Wikipaedia says,Bohatirchuk was not a 2nd hand player, USSR championchip 1927 parted 1.-2. rank.
Premium Chessgames Member
  thegoodanarchist: I like this puzzle a lot. Take away the flight square from the king, by trying to get your own pawn captured. Very clever!
May-21-17  ChessHigherCat: <Walter Glattke> Sie haben alles falsch verstanden: Underrated heisst unterbewertet/zu niedrig gesch√§tzt, nicht "second-rate" (zweite Klasse) und "second hand" heisst "aus zweiter Hand"/gebraucht, nicht zweite Klasse. Man versteht kein Wort von Ihrem "Denglisch", warum schlagen Sie niemals nach?:
May-21-17  patzer2: In the follow-up Stockfish 8 gives 47...Bc5! (-7.39 @ 33 depth) as stronger than 47...Kb6 (-5.14 @ 32 depth.)

I prefer 47...Bc5! (diagram below)

click for larger view

over <47...Kg6> because it creates the threat of 48...hxg7 with a decisive passed pawn.

If 48. Rxh3 in the diagram above, Black mates after 48...Rg8+ (diagram below)

click for larger view

49. Kh4 Bxf5 50. exf5 Be7+ 52. f6 Bxf6# (diagram below)

click for larger view

P.S.: Stockfish 8 at 30 plus depth per move gives the best play line 47...Bc5! 48. g3 fxg3 49.Kxg3

( 49.Rd1 Bf2 50.Kxh3 Rxh5+ 51.Kg4 Rh2 52.f4 g2 53.fxe5 Rh1 54.Kf3 Rxd1 55.Kxg2 Rd2 Mate in 17, Stockfish 8 @ 40 depth.)

49...Rxh5 50. b4 Rg5+ 51. Kh2 Bxf5 (-9.11 @ 34 depth, Stockfish 8)

Premium Chessgames Member
  Jimfromprovidence: <devere> <Walter Glattke> Yes, if 46...h3 47 b4, black can afford to play 47...Bxb4 as white still cannot organize a sound defense.

Here is another example. In an effort not to lose any material white plays 48 Rxh3. Then after 48...Rg8+ 49 Kh4, black wins easily enough with 49...Be1+.

click for larger view

There is also a forced mate in this line after 49 Kh4 for those interested.

click for larger view

May-21-17  Walter Glattke: ChessHigherCat, I apologize, I am often too spontaneous.
May-21-17  Iwer Sonsch: <Jimfromprovidence> 49...Bxf5

A) 50.fxe5 Bd7+ 51.f6 Bxf6#

B) 50.B-any Bd7+ 51.Kh5 Rh8 (# or 52.Bh7 Rxh7#).

R-any or g-any doesn't do anything.

May-21-17  Walter Glattke: I buried the right English, but my Langenscheid dictionary calls/marks the "Vorschlag" at proposal:
They played 46.-h3 47.c3 Kb6!?, but I checked up, one can play here 47.-Be8 48.Nxe7 (48.Bxe8 Rh4#) Bxh5+ 49.Kf5 hxg2 50.Rg1 Bxf3 51.Kxe5 Rh1 52.Rxg2 Bxg2 53.Kxf4 Rb1, and then white pawns will be lost.
May-21-17  Macbeth: The trivial 46....,Rg8+, doesn't. win on the spot?what am I missing?
May-21-17  Iwer Sonsch: <Macbeth> I also looked at that move, but Black has no winning followup. The game will be completely equal after either 47...Bxf5+, 47...Rg3+, or any other playable move.
Premium Chessgames Member
  catlover: <Patzer2><I miss the stories <Once> used to describe the problems and dilemmas presented by the daily chess puzzles.>

Yes, I've noticed that a few of our long-time kibitzers been posting less or not at all. They've seemingly dropped off the Chessgames map. I miss the contributions of <Once> and <YouRang>.

Premium Chessgames Member
  perfidious: Good guys, the both of them.
May-21-17  morfishine: <patzer2> & <catlover> Keep in mind that both <Once> & <YouRang> are busy people with professional pursuits; posting here may not be high on the priority list

And besides, <Once> posted as recently as 5-10-2017, but you are right, there is some concern regarding <YouRang> who's been absent since 3-24-2017


May-21-17  Granny O Doul: True (I assume, without knowing German), CHC, but Terry Britten and Graham Lyle made the same error of usage in "What's Love Got to Do with It?"
May-21-17  Moszkowski012273: White missed 27.Bc8...
May-22-17  ChessHigherCat: <Granny O Doul> True (I assume, without knowing German), CHC, but Terry Britten and Graham Lyle made the same error of usage in "What's Love Got to Do with It?">

Aha, that's why I never understood what they meant by "What's love but a second-hand emotion?. I thought it must be some kind of psychobabble for "borrowed emotion" but they really meant "second-rate emotion". So much for Fischer's theory of the mathematical precision of pop lyrics.

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