Showing posts with label Janowsky (Dawid). Show all posts
Showing posts with label Janowsky (Dawid). Show all posts

11 August 2022

Two Pigs

Edward Winter has published several entries in Chess Notes over the years inquiring into the origins of the checkmate pattern often called blind swine. The term "blind swine" for two rooks on the seventh that cannot find checkmate was credited to Dawid Janowsky by Vladimir Vukovic (see CN 5160). Winter seeks a primary source that confirms Janowsky used the term. None have been found. The phrase has been credited to Aron Nimzowitsch as well (CN 3525).

This morning I had two rooks on the seventh and was playing for a draw because I failed to see a resource: my f-pawn could advance to support one of the rooks and produce a different two rook checkmate. In my defense, it was early morning, my first game of the day, and the game was one minute plus one second increment. Such a time control does not produce accurate play.

Stripes,J. -- Internet Opponent [D06]
Live Chess Chess.com, 11.08.2022

White to move

27.b4?! d4 28.exd4 cxd4 29.Rc7+ Kg8??

29...R8e7=

30.Rxa7 Re2+ 31.Kg3 Rd8

31...R2e7 32.Rxe7 Rxe7 33.Rc8+ Kf7 34.Rd8+-

32.Rcc7

White has two rooks on the seventh, but how is this enough to win?

32...d3

White to move

33.Rxg7+ Kf8 34.Raf7+

34.Rxh7 threatens mate.

34...Ke8 35.Rc7 Kf8

White to move

36.Rcf7+

I could have played: 36.Rxh7 Kg8 37.f5! The key move that escaped my notice.37...d2 38.Rcg7+ Kf8 39.f6 and mate comes soon.

36...Ke8 37.Rc7 Kf8 38.Rxh7 Kg8 39.Rcg7+ Kf8 40.Rf7+ Kg8 41.Rfg7+ Kf8 42.Rf7+


White seems to be playing for a draw. I was because my fear of Black's d-pawn rendered the power of my f-pawn invisible.

Black to move

42...Ke8?

42...Kg8 White must find 43.f5, which White has already shown is beyond his capacity.

43.Rc7 Re7

White to move

44.Rh8+

White finds a tactic to create the opportunity that was already on the board. It is not the rooks that are blind.

44.Rcxe7+ Kf8 45.Rb7 Kg8 46.f5

44...Kf7 45.Rh7+ Kf6 46.Rcxe7 d2 47.Rd7 White won on time 1-0

02 April 2021

Capablanca -- Lasker, Game 7

Part 12 of a series recognizing the Centennial of Capablanca -- Lasker, World Chess Championship, Havana 1921.

The seventh game of the match was played during a single session of less that three hours on Saturday, 2 April 1921. Because it is a short draw, it receives little attention by commentators, except in the context of frequent complaints by chess fans who want to see fighting chess.

Should World Championship contenders take risks? Faced with a dynamic option that entailed some risk, Capablanca notes in his comment on one move that he sought to avoid risk with a one-point lead in the match. Lasker, for his part, adopted a more solid defensive scheme than he employed in two previous encounters in this match. Perhaps the importance of this game is that both players were seeking information about the other's plans for a battle later in the match.

Capablanca,José Raúl -- Lasker,Emanuel [D61]
World Championship 12th Havana (7), 02.04.1921
[Capablanca/Lasker/Janowski]

1.d4 d5 2.Nf3 e6 3.c4 Nf6

Commenting on Game 5 for American Chess Magazine (April 1921), where Black's 2nd and 3rd moves were played in reverse of the order in this game, David Janowski wrote: "It has always been a puzzle to me as to which is the best defense for Black. The so-called orthodox defense, which Dr. Lasker, so far as I know, never adopted before until this match, I found some fifteen years ago quite unsatisfactory. In the internationals tournaments of Ostend, 1905, Barmen, 1905, I adopted with success dxc4, which up to date I consider very likely to be the best defense."

The database of Lasker's games on the DVD Master Class, vol. 05: Emanuel Lasker (2015) offers three games as Lasker's experience with this system from the Black side prior to the match with Capablanca: a game from 1890 against his older brother, a game against Blackburne in London in 1892, and a casual game in New York that year.

4.Bg5 Be7 5.e3 Nbd7

Commenting on the 4th move in game 5, Janowski adds: "Dr Lasker, in his chess magazine, made the following remark on one of my match games with Frank Marshall: 'Why should one develop the knight at d7, blocking his bishop, while that knight can be developed at c6?' I quite agree with him. Strange to say, all the great masters in their older days play against their own theory. They evidently miss the power of conviction and determination which is the characteristic of youth."

6.Nc3 0-0 7.Rc1

So far in the match, we have seen this position twice before when Lasker had Black. The exception was game three's Four Knights/Spanish.

Black to move
7...c6

Abandoning the dubious 7...b6, played in games one and five.

8.Qc2 c5

"This move is not to be recommended" (Capablanca).

I would note that in Capablanca's expression of general principles in Chess Fundamentals, A Chess Primer, and Last Lectures, he often stresses the concept of time. Moving a pawn twice to reach a square where it could go in one move is a clear violation of his advice. Edward Winter's narrative of Capablanca's visits to England in 1920 include a statement by Brian Harley that he examined proofs for Chess Fundamentals in October 1920 (106-107). According to Miguel A. Sánchez, the book was published in December 1921 in both England and the United States (259).

"Black has apparently lost a move, but by moving the queen to c2 White has reduced the pressure on d5 and has not gained anything essential" (Lasker).

9.Rd1

"Capablanca goes back to the familiar line, only that it took Black two moves to move from c7 to c5 and White to move Ra1 to d1" (Lasker).

"9.cxd5 would have been the proper to continue" (Capablanca).

9...Qa5 10.cxd5 Nxd5 11.Bxe7 Nxe7 12.Bd3 Nf6 13.0-0 cxd4

White to move
14.Nxd4

"14.exd4 was the alternative. It would have led, however, to a very difficult game where, in exchange for the attack, White would remain with an isolated queen's pawn; leading at this stage of the match by one point, I did not want to take any risks" (Capablanca).

14...Bd7 15.Ne4 Ned5 16.Nb3 Qd8 17.Nxf6+

"What if 17.Nbc5? so 17...Rc8" (Lasker).

17...Nxf6 18.Qc5 Qb6

"With this move Black neutralizes whatever little advantage White might have had. The draw is now in sight" (Capablanca).

White to move
19.Rc1 Rfc8 20.Qxb6 axb6 21.Rxc8+ Rxc8 22.Rc1 Rxc1+ 23.Nxc1 ½-½

Capablanca 1:22 - Lasker 1:20

The score stands at one win for Capablanca and six draws.

References

Sánchez, Miguel A. José Raúl Capablanca: A Chess BiographyJefferson, NC: McFarland, 2015.
Winter, Edward. Capablanca: A Compendium of Games, Notes, Articles, Correspondence, Illustrations and Other Rare Archival Materials on the Cuban Chess Genius Jose Raul Capablanca, 1888-1942. Jefferson, NC: McFarland, 1989.

10 December 2016

Pigs

Lesson of the Week

For reasons that are not entirely clear, rooks on the seventh rank (or second) are sometimes called pigs or swine. The term "blind swine" or "blind pigs" has been attributed to Dawid Janowsky (1868-1927) and Rudolf Spielmann (1883-1942) by several writers, but the origins remain unknown.* Rooks on the rank occupied by the opponent's pawns can gobble everything. Two pigs, or one pig working with a bishop, can be a decisive pair. Sometimes they can save an otherwise lost game, as Janowsky showed on at least two occasions. Sometimes they can deliver checkmate or gobble enough pieces to produce a decisive material advantage.

My advanced students this week saw three positions. The first is from a game played by Janowsky against Jackson Showalter in 1898 (see Chess Notes 5160).

White to move

The checkmate threat was obvious to my students.

34.Rf1 Re8 35.Rff7 Ra6!

The point of Showalter's move here was less obvious to the young players. The point is that now 36.Rc7+ loses because the king will find shelter from checks on a8. Then, White will be helpless against Black's queenside pawns.

36.Rb7 a3 37.Rhc7+ Kd8 38.Rd7+ and White's rooks force a draw by repetition.

The second position was from one of my own blitz games this week.

White to move

Had my opponent played 35...g5 instead of 35...Nb5, I would have lost the game. Now, however, I have a clear and simple win.

36.Rxg7+ Kh8 37.Rgxf7+ Kg8 38.Rg7+ Kh8 39.Rh7+ Kg8 40.Rcg7#.

I call this checkmate pattern "two pigs" in my "Checklist of Checkmates". Some books call it the blind swine checkmate.

The third position is quite challenging until you have seen it once. The solution is the famous "windmill" that Carlos Torre used to defeat former World Champion Emanuel Lasker in 1925.

White to move

It was my knowledge of this famous combination that guided me in setting up one final desperate attempt in the game above. My opponent, on the other hand, did not recognize the threat.

25.Bf6!

This move is the only one leading to advantage, according to chess engines.

25...Qxh5 26.Rxg7+ Kh8 27.Rxf7+ 

A series of discovered attacks force Black's every move. The rook first clears the seventh rank of all but one pawn, then goes after the queen.

27...Kg8 28.Rg7+ Kh8 29.Rxb7+ Kg8 30.Rg7+ Kh8 31.Rg5+ Kh7 32.Rxh5 Kg6

With this fork, Lasker wins back some of the material.

33.Rh3 Kxf6 34.Rxh6+ Kg5 35.Rh3+ and White went on to win due to his three pawn advantage.


My beginning students received instruction in the elementary checkmate of queen and king against a lone king. I worked with students one at a time. Parents can learn the technique from "Teaching Elementary Checkmates".


*See Edward Winter, Chess Notes 7003, which cites Francis J. Wellmuth, The Golden Treasury of Chess (1943) attributing the term to Janowsky; and Chess Notes 6108, citing attribution to Spielmann in I.A. Horowitz and Geoffrey Mott-Smith, Point Count Chess (1960).