Showing posts with label Tarrasch. Show all posts
Showing posts with label Tarrasch. Show all posts

Tuesday, September 9, 2008

Another Claim to Fame

I have already demonstrated my longest chessgame. I also have a game in 'The Quickest Chess Victories of All Time' (Graham Burgess, Cadogan 1998). A very nice book in my opinion but I may be biased as I luckily am on the winning side:

Sv.Johnsen - G.Nesheim
Gausdal Open Ch NOR, 1985

1.e4 c5 2.c3 Nf6

Recently Tarrasch' old 2...Qa5 has had a small boost in popularity. After 3.Nf3 Nc6 some notable continuations are:
a) 4.Na3 e6 5.Nc4 Qc7 6.d4 cxd4 7.Nxd4 a6 8.Bd3 b5 9.Ne3 Nf6 = Alapin-Tarrasch, Vienna 1898.
b) 4.Bc4 d6 5.Qe2 Nf6 6.h3 e5 7.0–0 Be7 = Rainfray-Movsesian, France 2003.
c) 4.g3 Nf6 5.Qe2 d5 6.exd5 Nxd5 7.Bg2 Bg4 8.h3 Bh5 9.0–0 e6 = Rozentalis-Movsesian, Hastings 1996.

3.e5 Nd5 4.d4 cxd4 5.Nf3 Qa5?!
(Dia)

6.Nxd4
6.Qxd4 appears less logical. After 6...Nc6 7.Qe4 e6 8.Bd3 f5 9.Qe2 Qa4 10.h3 Nf4 11.Bxf4 Qxf4 chances were equal in Tzoumbas-Skembris, Liosia 1991.

6...e6

I think I had a faint hope of 6...Nc6 7.Nb3, which actually happened in Arslanov-Nozdrachev, Russian Ch U12 2004.

7.Nd2!

This appears more logical than 7.Bc4 Nb6 8.Bb5 a6 (8...Nc6 9.a4 Nd5 10.0–0 a6 11.Bxc6 bxc6 12.Na3 += Donets-Khatenever, St Petersburg 2005) 9.b4 Bxb4 10.cxb4 Qxb4+ 11.Qd2 Qxd2+ 12.Bxd2 axb5 13.Nxb5 Na6 14.Nd6 += Stojic-Edwards, Canberra 2003.

7...Nc6

Burgess notes that White is better after 7...a6 8.Nc4 Qc5 9.Qg4 as well as 7...d6 8.Nc4 Qd8 9.Nxd6+ Bxd6 10.Bb5+.

8.Nc4 Qd8 9.Nb5 Bc5

9...Be7 10.Nbd6+ Kf8 11.Qh5 g6 12.Bh6+ Kg8 13.Qf3 Bxd6 14.Nxd6 transposes to 9...Bc5 10.Nbd6+ Kf8 11.Qh5 g6 12.Bh6+ Kg8 13.Qf3 Bxd6 14.Nxd6 (note to Black's 11th move).

10.Nbd6+ Kf8 11.Qh5
(Dia)

11...Qe7?
This loses a piece. Black had to try 11...g6 12.Bh6+ (12.Qh6+ Kg8 13.Bg5 Qf8 14.Qxf8+ Kxf8 15.Ne4 Be7 16.Bh6+ Kg8 17.f4 is good too) 12...Kg8 13.Qf3 Bxd6 when Burgess considered 14.Nxd6 dubious because of 14...Nxe5 but actually 15.Qe4 Nc6 16.0–0–0 is very good for White. An important line is 16...Qe7? which surprisingly loses to 17.Rxd5! exd5 18.Qxe7 Nxe7 19.Bd3 when Black is helpless. Instead Black must try 16...f5 but 17.Qc4 Nf6 18.Be2 clearly is better for White. Thanks to Rybka for assisting me with these lines!

12.Bg5 f6 13.exf6 1–0

(after 13...Nxf6 14.Bxf6 gxf6, White picks up the loose piece with 15.Qxc5)

Monday, February 5, 2007

My Chess World Record

I suddenly remembered that I am a world record holder in chess!
It may not be the most prestigious records, but I still have a claim to fame: http://www.xs4all.nl/~timkr/records/records.htm . See "Greatest number of checks" under "Checks" and "Longest sequence without captures" under "Captures". Here is my game with some light comments:

IM Hannu Wegner, (2425) - Sverre Johnsen (2220)
Gausdal International (7), 1991
1.d4 d5 2.c4 e6 3.Nf3 c5
At the time, this move - the Tarrasch defence - was my favoured weapon against 1.d4. Black accepts an isolated d-pawn in exchange for active piece play.
4.cxd5 exd5 5.Bg5!? Be7 6.Bxe7 Nxe7 7.dxc5 Nbc6 8.e3 Qa5+ 9.Nbd2 Qxc5 10.Nb3 Qb6 11.Be2 Bg4 12.0-0 Bxf3 13.Bxf3 0-0 14.Qd2 Rfd8 15.Rfd1 Ne5 16.Nd4 N7c6 17.Be2 Rac8 18.Nxc6 Rxc6 19.Rac1 Rxc1 20.Qxc1 h6 21.Qd2 Qg6 22.Qc3 Qd6 23.h3 a6 24.Rd2 Kh7 25.Qc2+ g6 26.Qd1 Qc5 27.Bf1 Kg7 28.b3 Kh7 29.g3 (Dia)
29...d4
I assume my opponent must have missed this simplifying tactics. In principle the resulting endgame with bishop against knight and pawns on both wings should be better for White. But my knight is excellently placed, and my king is able to support it, so I believe chances are balanced.

30.exd4 Rxd4 31.Rxd4 Qxd4 32.Qxd4 Nf3+ 33.Kg2 Nxd4 34.f4 Kg7 35.Kf2 Kf6 36.Bd3 h5 37.Ke3 Nf5+ 38.Kf3 Nd6 39.b4 Ke6 40.g4 hxg4+ 41.hxg4 Kd5 42.Ke3 Nc4+ 43.Bxc4+ Kxc4 44.Ke4 Kxb4 45.Ke5 Ka3 46.Kf6 Kxa2 47.Kxf7 b5 48.f5 gxf5 49.gxf5 b4 50.f6 b3 51.Kg7 b2 52.f7 b1Q 53.f8Q (Dia)
If I remember correctly, FIDE's rules at that time stated that once my rook-pawn reached the 2nd rank, I would have 75 moves (rather than the standard 50) at my disposal to capture a piece or move a pawn (which both normally should ensure the win).

53...Qg1+ 54.Kh6 Qe3+ 55.Kh5 Qe5+ 56.Kh6 Qe6+ 57.Kh5 Qd5+ 58.Kh6 a5 59.Qf2+ Kb3 60.Qg3+ Kb4
At this time, the standard time schedule for a serious tournament game was 120 minutes for the first 40 moves and thereafter 60 extra minutes per 20 moves. Not quite as generous as when I first started playing but still luxurious compared with current week-end tournaments. So here another hour was added to our clocks.
61.Qb8+ Kc5 62.Qa7+ Kb5 63.Qb8+ Ka6 64.Qc8+ Kb6 65.Qb8+ Qb7 66.Qd8+ Qc7 67.Qd3 Qf4+ 68.Kh7 Qh4+ 69.Kg6 Qg4+ 70.Kh6 Qf4+ 71.Kh7 a4 72.Qb1+ Kc5 73.Qc2+ Qc4 74.Qf2+ Qd4 75.Qc2+ Kb4 76.Qb1+ Ka3 77.Qc1+ Qb2 78.Qc5+ Ka2 79.Qc4+ Qb3 80.Qe2+ Ka1 81.Kh6 Qb6+ 82.Kh5 Qc5+ 83.Kh6 a3 84.Qd1+ Kb2 85.Qd2+ Kb3 86.Qd3+ Kb4 87.Qd2+ Kb5 88.Qd3+ Kb6 89.Qd8+ Kc6 90.Qe8+ Kc7 91.Qf7+ Kb6 92.Qb3+ Ka5 93.Qa2 Ka4 94.Kh7 Qh5+ 95.Kg7 Qg5+ 96.Kh7 Qf5+ 97.Kg7 Qd3 98.Kh6 Kb4 99.Kh5 Qc4 100.Qd2+ Kb5 101.Qd7+ Ka5 102.Qd2+ Qb4 103.Qd8+ Qb6 104.Qa8+ Kb4 105.Qe4+ Kc3 106.Qe1+ Kb2 107.Qd2+ Ka1 108.Qd1+ Ka2 109.Qc2+ Qb2 110.Qc4+ Qb3 111.Qe2+ Kb1 112.Qe1+ Kb2 113.Qe2+ Qc2 114.Qe5+ Kb1 115.Qe1+ Ka2 116.Qe6+ Qb3 117.Qe2+ Kb1 118.Qe1+ Kb2 119.Qf2+ Qc2 120.Qf6+ Qc3 121.Qf2+ Kb3 122.Qb6+ Ka4 123.Qb1 Qh3+ 124.Kg5 Qg2+ 125.Kh5 Qd5+ 126.Kh6 a2 (Dia)


And the count-down begins.

127.Qc2+ Kb5 128.Qb2+ Kc6 129.Qc3+ Kd7 130.Qg7+ Kd8 131.Qa1 Qd2+ 132.Kh5 Kc7 133.Qe5+ Kc6 134.Qe8+ Kc5 135.Qc8+ Kb4 136.Qb7+ Ka4 137.Qc6+ Kb3 138.Qb5+ Qb4 139.Qd3+ Ka4 140.Qd1+ Qb3 141.Qd4+ Kb5 142.Qd7+ Ka6 143.Qc8+ Ka5 144.Qd8+ Kb4 145.Qd6+ Kc4 146.Qe6+ Kc3 147.Qe5+ Kc2 148.Qe4+ Qd3 149.Qa4+ Kb1 150.Qb4+ Kc1 151.Qc5+ Kd1 152.Qg1+ Kd2 153.Qg5+ Ke1 154.Qh4+ Kd1 155.Qa4+ Qc2 156.Qd4+ Ke2 157.Qg4+ Kf1 158.Qf3+ Kg1 159.Qg3+ Kh1
The final stages of the game were played as two-hours sessions in between rounds. Somewhere around here, my opponent informed the arbiter that he would not turn up for the next playing session, and that his clock should be running for the two hours. This was accepted by the arbiter, and I was informed that I too could have some hours off, provided that I turned up for the opening of the sealed move and then informed the arbiter where I could be found.
160.Qf3+ Qg2 161.Qd1+ Kh2 162.Qd6+ Kg1 163.Qc5+ Qf2 164.Qg5+ Kh1 165.Qd5+ Kh2 166.Qe5+ Kh3 167.Qc3+ Qg3 168.Qa1 Qf3+ 169.Kh6 Qe3+ 170.Kg6 Qb6+ 171.Kh5 Qa5+ 172.Kg6 Qd2 173.Kh5 Kg2 174.Qg7+ Kh2 175.Qe5+ Kh1 176.Qa1+ Kg2 177.Qg7+ Kh3 178.Qa1 Qd5+ 179.Kh6 Qe6+ 180.Kh5 Kg3 181.Kg5 Kf2 182.Kh5 Qh3+ 183.Kg6 Qg2+ 184.Kf6 Qf3+ 185.Kg6 Qg3+ 186.Kf6 Qf4+ 187.Kg6 Qd6+ 188.Kg5 Qd8+ 189.Kh5 Qa5+ 190.Kg6 Qa6+ 191.Kh5 Qb5+ 192.Kh6 Qb6+ 193.Kh5 Qc5+ 194.Kh6 Qd6+ 195.Kg5 Qd5+ 196.Kg6 Ke3 197.Qe1+ Kd3 198.Qd1+ Kc4 199.Qc2+ Kb5 200.Qb2+ Kc6 1/2-1/2
(In total the game lasted for 16 hours and 20 minutes).

When I finished this game, I knew I had beaten the latest published Guiness' record (which, I believe was 196 moves played in Martinovsky - Jansa, at the same playing site four years earlier). I also knew there was a recent game (apparently Chekhlov - Stavrinov, Riga, City Ch. 1988) which was longer. So I had no illusion my game was the longest game ever. As it turns out, it was number 3 in the "Longest games" list - as it still is. That it actually set two other records I discovered years later!

I may in the future return to this game and add some comments after having fed the endgame to the "Nalimov Tablebases" and established where I missed the wins (I am quite sure there was at least a few opportunities).

PS: For those wondering whether the Kovacevic winning the shortest tournament game could be Vlatko, my co-author of "Win with the London System", I must disappoint you. The lucky man appears to have been the unrated Milorad Kovacevic. Kovacevic is a common name in former Yugoslavia, and could indeed with some justification be translated 'Smith'. There seem to be two GMs and three IMs with this family name.