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Mark Danilovich Tseitlin vs Vladimir I Karasev
URS-ch sf (1982), Severodonetsk
Sicilian Defense: Najdorf Variation (B94)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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Oct-06-16
Premium Chessgames Member
  al wazir: Bah. I didn't see that after 29. Nh5 Bxc3, white has a win with 30. Qxc3.

I'm going to go eat worms.

Oct-06-16  mqhelisi: On this line though am sure 29. ...Qxh5 30....Ra8 for black might last longer than mate in tfour
Oct-06-16  mqhelisi: 29. Nh5 is good never saw it
was concerned about getting the rook on a7 which is hanging by exchanging all pieces then play Qb8+ to take by Qxa7
Oct-06-16  YouRang: Thursay 29.?


click for larger view

I actually got this fairly quickly because I noticed the potential of the rook and bishop mating pattern (e.g. take away Bf6 and you've got 29.Rh8#). That bothersome Bf6 is defended only by black's Q.

So, this prompts me to look for a way to deflect or attack that bishop, and <29.Nh5> (attacking the Bf6) is a viable try.


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This became interesting to me when I noticed that 29...gxh5 loses (30.Rxh8+ Bxh8 31.Rb8 and black can't stop the two mate threats: Rxh8# and Qg8#).

Black can't ignore the N since white threatens Bxf6 with Rh8# threat, nor can black exchange bishops since 29...Bxc3 30.Qxc3 renews the Rh8#/Qh8# threat.

So, I'm thinking this is solved if taking the knight with the queen fails: <29...Qxh5> which leaves Bf6 unguarded, hence <30.Bxf6>


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Again white threatens Rh8#. Black will want to exchange rooks to avoid losing a rook: <30...Rxb8 31.Rxb8>, but that Rh8# threat never dies!

Black can make an escape from mate with <32...g5 33.Rh8+ Kg6>


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But now white has <33.Bxg5!>, and the bishop is safe since Ph6 is pinned. From here on, it looks like a king hunt with white scooping up material with nasty attacks along the way (e.g. 33..f6 34.Bxh6+ Kf5 35.Qf4+ wins the Be4)

Oct-06-16  TimothyLucasJaeger: Got the first move right but i missed some of the follow-ups like the ...Ra8 defense.
Oct-06-16
Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair and a pawn.

Black threatens Bxc3.

The black king doesn't seem to be very safe and the rook on a7 is defenseless. These details lead to consider 29.Nh5:

A) 29... gxh5 30.Rxh8+

A.1) 30... Bxh8 31.Rb8 and the double threat 32.Qg8# and 32.Rxh8# wins (31... Bg7 32.Qxg7#).

A.2) 30... Kxh8 31.Rb8+ and mate in three.

B) 29... Qxh5 30.Bxf6 Rxb8 31.Qb8 g5 32.Qxa7

B.1) 32... Qg4 33.Qxf7#.

B.2) 32... Kg6 33.Qxc5

B.2.a) 33... Kxf6 34.Qd4+ Kf5 35.Rb6 wins (35... Bxc2 36.Rf6#; 35... Qe2 36.Rf6+ Kg4 37.Qxe4+ Qxe4 38.f3+, etc.).

B.2.b) 33... Qg4 34.f3 Bxf3 35.Qf2 + - [R vs P].

C) 29... Bd4 30.Bxd4

C.1) 30... cxd4 31.Rxh8+ Kxh8 32.Qb8+ Kh7 33.Ng3 Qd7 34.Nxe4 + - [N vs P].

C.2) 30... Rxb8 31.Qxb8 cxd4 32.Ng3 as above.

D) 29... Bxc3 30.Qxc3

D.1) 30... Rxb8 31.Qg7#.

D.2) 30... g(Q)xh5 31.Q(R)xh8#.

D.3) 30... f6 31.Qxf6

D.3.a) 31... Qxf6 32.Nxf6+ Kg7 33.Nxe4 + - [N].

D.3.b) 31... Rg8 32.Rxg8 Qxf6 (32... Kxg8 33.Rb8+ and mate in two) 33.Nxf6#.

E) 29... Be5 30.Bxe5 wins.

Oct-06-16  Beholder: Solved it. In full.

Normally, I only solve Monday's and Tuesday's and then maybe 40%-50% of the time I solve Wednesday's. Almost never Thursday's and up.

This time I decided not to look for an answer until I figure it out. And what do you know, I did figure it out.

I noticed straight away that the Bf6 needs to be removed for a mating pattern to appear, so Nh5 jumped at me. Then I noticed that Black could play Bxc3 instead of capturing the N and at this point normally I'd give up and click through to the answer.

This time, I steeled myself and then noticed that Qxc3 will retain the mating pattern AND deprive Black of the tempo to capture the N. Rook recaptures Rook either before or after Bxc3 and makes no difference, after Qxc3 though it even fails to an outright mate on g7 (with the N on h5).

So Nh5 really should work after all.

Why didn't I think such things through every time?! It must be because I'm afraid of losing on time and that, in turn, is because I play mostly blitz chess.

Botvinnik once said that blitz hurts your chess, and you know what, he was right.

Oct-06-16  gofer: I looked at the blunt attack of Nxg6, but this didn't seem to bear any fruit. So I switched to the tangential attack...

<29 Nh5 ...>

White threatens Nxf6+ starting a windmill that wins 2 bishops!

29 ... Qxh5
30 Bxf6 Rxb8
31 Rxb8 Qd1+
32 Kh2 g5
33 hxg5 mating

29 ... gxh5
30 Rxh8+ Bxh8 (Kxh8 32 Rb8+ Kh7 33 Qg8#)
31 Rb8 Qd1+
32 Kh2 mating

So that just just leaves Bf6 moves...

29 ... Bg7
30 Nxg7 Qd7/Qd5
31 Rxh8+ Kxh8
32 Ne8+/Nh5+ f6 (Kg8 Nxf6+ )
33 Nxf6


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29 ... Be5
30 Qxe5 Qxe5
31 Bxe5 gxh5 (Rxb8 33 Nf6+)
32 Rxh8+


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So probably black has to try...

<29 ... Bd4>
<30 Bxd4 cxd4>
<31 Rxh8+ Kxh8> <32 Qb8+ Kh7>
<33 Ng3! ...>


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Ouch...

~~~

Black chose a painless quick death...

Oct-06-16  gofer: <YouRang>: <33 Bxg5!> Nice find!

I missed it and instead allowed the perpetual check or the queens to come off when things are far from clear...

Oct-06-16  dfcx: I fall into the trap with

29.Rxh8+ Bxh8
30.Bxh8 Kxh8
31.Nxg6+? Qxg6


click for larger view

Now if white tries
32.Qb8+ Kh7
33.Qxa7?? QXG2#

Oct-06-16
Premium Chessgames Member
  patzer2: Thought of the Hall and Oates song "So Close" with the lyric "So close yet so far away," as I found the first two moves of today's Thursday combination with 29. Nh5 gxh5 30. Rxh8+ Bxh8 but missed the critical follow-up 31. Rb8! (forces mate-in-five).

Instead, I calculated 31. Bxh8? Kxh8? 32. Rb8+ Kh7 33. Qg8#. What I missed is 31. Bxh8? is refuted by 31...Qg4! 32. Qxg4 hxg4 33. Bc3 h5 with the win slipping away and the advantage going to Black.

Black's decisive mistake was 28...Bf6? allowing 29. Nh5! (+3.25 @ 23 depth, Deep Fritz 15). Instead, the game notes suggest 28...Re8 = (-0.21 @ 20 depth, Deep Fritz 15) holds for Black. Even stronger might be the computer pick 28...Rg8 (-1.14 @ 20 depth, Deep Fritz 15).

Oct-06-16  mel gibson: I didn't get it because it's obvious that the pawn can't take the knight 29... gxh5

it should be
29 ... Qxh5.

but still the score is -3.08 for black depth 20 (DR4 64 bit) so the text solution of
29 N-h5 is still the best move.

Oct-06-16  RandomVisitor: After 13.Nf5


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Komodo-10.1-64bit:

+0.16/34 13...Ra7 14.e5 Nd5 15.Rad1 Rd7 16.Nxd5 Rxd5 17.Ng3 Bb7 18.Rb1 Bc6 19.Ne4 Be7 20.Qg3 Kf8 21.Nf6 Bxf6 22.exf6 Qxf6 23.Rb8+ Be8 24.Qc7 g6 25.Qc6 Qe7 26.Qxa6 Kg7 27.Qxc4 Qd6 28.Rfb1 Bc6 29.Rxh8 Kxh8 30.Qf1 Kh7 31.c4 Rh5 32.h3 Qe5 33.Re1 Be4 34.f3 Bc2 35.Bf2 Qd6 36.Re2

+0.38/34 13...Bb7 14.Rfd1 Qb6 15.Rab1 Qc6 16.Nd5 exd5 17.exd5 Qd7 18.Bxc5 0-0-0 19.Bxf8 Rhxf8 20.Qf4 Rfe8 21.Nxg7 Nxd5 22.Qxc4+ Qc6 23.Qg4+ Kb8 24.Nxe8 Rxe8 25.Rb3 Ka8 26.Qf3 Re6 27.Rdb1 Re7 28.h3 Qc4 29.Rd1 Nb6 30.Rd8+ Ka7 31.Qg3 Qc7 32.Qxc7 Rxc7 33.Rd6 Na4 34.Rxh6 Rxc2 35.Re3 Rxa2 36.Re7 Nc3 37.h4 Rd2

+0.42/34 13...exf5 14.exf5 Bxf5 15.Qxf5 Be7 16.Rad1 Qc8 17.Qxc8+ Rxc8 18.Rfe1 Rc6 19.Rb1 0-0 20.Bxh6 Bd8 21.Bd2 Ba5 22.Re2 Bxc3 23.Bxc3 Nd5 24.Ba5 Re6 25.Kf1 Rxe2 26.Kxe2 Re8+ 27.Kf3 Kh7 28.Rb7 Kg6 29.Rd7 Nb4 30.Bxb4 cxb4 31.Rd4 Rc8 32.Rd6+ Kg5 33.Rxa6 Rd8 34.Ra5+ f5 35.Ra7 g6 36.Rb7

Oct-06-16
Premium Chessgames Member
  kevin86: For black's sake, white has too many long range pieces focusing near the king.
Oct-06-16
Premium Chessgames Member
  Jimfromprovidence: <plumbst> <In the main line 29...Qxh5 30.Bxf6 Rxb8 31.Rxb8 Ra8 White has the clever move 32.f3! winning the Bishop,>

I went for this line but did not see 32 f3. I tried 32 Rxa8, seeing 32...Bxa8 33 Qb8 Qd1+ 34 Kh2.


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White has a mate in one threat forcing 34...g5. Next comes 35 Qh8+ Kg6 36 Be5! ( to prevent 36...Qd6+)


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Black likely will play 36...Kh5 to prevent 37 Qf6+, allowing white to take the bishop.

Oct-06-16
Premium Chessgames Member
  gawain: What a nice finish.

Thought I would solve it quickly when I noticed the potential mate by Rxh8--but I just could not figure out how to make it happen. I mistakenly believed White had to decoy the black bishop off the diagonal. Never considered how helpful the queen could be if the g-file could be cleared.

Oct-06-16  vajeer: How about 29...Bd4
After 30. Rxh8+ Kxh8
31. Qb8+ Kh7
32. Bxd4 cxd4
33. Qxa7 gxh5

White is exchange up. But I was wondering whether 29...Bd4 would be black's best response to 29. Nh5

Oct-06-16  PJs Studio: Can someone please give me a link to yesterday's and Tuesday's game of the day? I never got to solve them and got called away to work both days. ((Displeased!))

Thanks!

Oct-06-16  PJs Studio: Beholder, Botvinnik was right about everything. Blitz only improves our time pressure scrambles. I wish they'd do away with it in the high level knockout matches but...chess is sport too I guess.
Oct-06-16  Aunt Jemima: I really blew this one. I saw 29. Rxh8 Bxh8 30. Bxh8 Kxh8 31. Nxg6+ and 32. Qb8+ winning the rook.
Oct-06-16  MaczynskiPratten: <PJs Studio> For links to previous puzzles, see the Puzzle of the Day index (in Game Collections below) which <PhonyBenoni> has faithfully kept going for over 10 years - a great service to Chessgames readers :)
Oct-06-16  YouRang: <PJs Studio: Can someone please give me a link to yesterday's and Tuesday's game of the day?>

I assume you mean "puzzle of the day", which is different than the "game of the day".

CG.com keeps past daily puzzles in their tactics archive page, which you can reach by following this link: Tactics Archive

The puzzles you want are the top two (until tomorrow, when this game is added to the top of the list).

Oct-06-16  sp12: 29...Qxh5 30.Bxf6 Rxb8 31. Qxb8 Ra8

what next??

Oct-07-16  Moszkowski012273: There is nothing wrong with 13...exf5
Oct-09-16  PJs Studio: Thank you guys. Yes, I meant puzzle of the day and I'm not a premium member so I cannot access them. Ugh!
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