1 Mar 2018

B15 Caro-Kann: 3.Nc3: 3...g6 and 3...dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 (1.e4 c6 2.d4 d5 3.Nc3 g6 4.Be3)

B15 Caro-Kann: 3.Nc3: 3...g6 and 3...dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 (1.e4 c6 2.d4 d5 3.Nc3 g6 4.Be3)

I think that it is time to switch from blitz games to my correspondence games for awhile. This is a game that has been shared previously, but due to the changes I have made, it no longer fit in the post it was in, so it will be here from now on. Now that I have searched for the position after 1.e4 using the reference tab in ChessBase 12, so that I would see how many games there are featuring each move in my reference database, the result changes each time, I have done it three times now. I have no idea why this happens, but it is really disappointing as it makes using my reference database in this way pointless as I can't rely on the results. I think I will be using the LiveBook for these maybe from now on. The move 1.e4 appears in 809460 games in the LiveBook, with a result of 54% and Elo-average 2422. The reply 1...c6 (61474 games, result 54%, Elo-average 2435) is the 4th most played move. More played moves are 1...c5 (374627 games, result 52%, Elo-average 2431), 1...e5 (172695 games, result 55%, Elo-average 2440) and 1...e6 (104206 games, result 55%, Elo-average 2417). My second move d4 has appeared in 50284 games, with a result of 54% and Elo-average 2429 and it is the most popular continuation in Caro-Kann. Woodzulu continued with the most played move, 2...d5 (48789 games, result 54%, Elo-average 2438).

I have, for some time now, played 3.Nc3 (14249 games, result 52%, Elo-average 2419) in this position because I do not really like the positions that arise in case I play 3.e5 (14910 games, result 56%, Elo-average 2456) instead. I played that pawn advance for awhile until I realized that 3.Nc3 suits my playing style better. Woodzulu played 3...g6 (1544 games, result 55%, Elo-average 2391), which is actually the second most played move in the position, but it is much rarer move than 3...dxe4 (13254 games, result 52%, Elo-average 2442). I then played the rather rarely seen move 4.Be3 (38 games, result 42%, Elo-average 2316). It is the 6th most often occurred move. More often seen moves are 4.Nf3 (669 games, result 55%, Elo-average 2376), 4.h3 (609 games, result 58%, Elo-average 2385), 4.e5 (280 games, result 55%, Elo-average 2377), 4.f3 (240 games, result 59%, Elo-average 2412) and 4.Bf4 (47 games, result 47%, Elo-average 2382). Interestingly my opponent then took on e4 instead of playing 4...Bg7 (431 games, result 48%, Elo-average 2416), which is the most played move in the position. The game continuation 4...dxe4 (11 games, result 36%, Elo-average 2381) is the second most popular move. Not surprisingly, in all of those 11 games the reply was 5.Nxe4. Woodzulu's 5th move Qb6 was a novelty. Moves that have seen some play are 5...Nh6 (3 games, result 17%, Elo-average 2426), 5...Bg7 (3 games, result 50%, Elo-average 2357), 5...Nf6 (2 games, result 25%, Elo-average 2360) and 5...Nd7 (1 game, result 100%, Elo-average 2400).

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MoveNResultElo
1.e41,166,62354%2421
1.d4947,29855%2434
1.Nf3281,60256%2441
1.c4182,10256%2442
1.g319,70256%2427
1.b314,26554%2427
1.f45,89748%2377
1.Nc33,80151%2384
1.b41,75648%2380
1.a31,20654%2404
1.e31,06848%2408
1.d395450%2378
1.g466446%2360
1.h444653%2374
1.c343351%2426
1.h328056%2418
1.a411060%2466
1.f39246%2436
1.Nh38966%2508
1.Na34262%2482
1.e4 c6 2.d4 d5 3.Nc3 g6 4.Be3 B15 Caro-Kann: 3.Nc3: 3...g6 and 3...dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 dxe4 5.Nxe4 Qb6N 5...Bg7= 6.Bc4 Nh6 7.Nf3 Bg4 8.Bxh6 Bxh6 9.Bxf7+ Kf8 10.Bb3 Kg7 11.h3 Bxf3 12.Qxf3 Rf8 13.Qc3 1-0 (13) Loverdos,S-Kontarinis,A Kallithea 1977 5...Nh6 6.Ng3 6.c3 Bg7 7.Nf3 0-0 8.Qd2 Nf5 9.Bf4 a5 10.Bd3 a4 11.0-0 Nd6 12.Rfe1 Nxe4 13.Bxe4 Nd7 14.h3 Nf6 15.Bd3 Be6 16.c4 Re8 17.Rad1 Qc8 18.Qb4 b5 19.d5 Bxd5 20.cxd5 Nxd5 Atanasov,P (2305)-Spiridonov,N (2405) Ruse 1978 1/2-1/2 (79) 6...Ng4 7.Bc4 Bg7 8.Nf3 Nxe3 9.fxe3 Qa5+ 10.c3 0-0 11.0-0 Nd7 12.e4 b5 13.Bb3 Nb6 14.Rf2 Nc4 15.Qe2 Bh6 16.Bxc4 bxc4 17.Ne5 Qa6 18.Nxc4 Be6 19.Ne5 Qb6 20.b3 Babula,M-Opocensky,K Harrachov 1970 1-0 (33) 5...Nf6 6.Nxf6+ exf6 7.Qd2 h5 8.0-0-0 Be6 9.Kb1 b5 10.Ne2 Nd7 11.Nf4 Nb6 12.Nxe6 fxe6 13.Bd3 Kf7 14.c3 Qd5 15.f3 Nc4 16.Qe2 Nxe3 17.Qxe3 Bh6 18.Qe2 a5 19.Be4 Qd6 20.Rhe1 Trent,L (2436)-Meissner,F (2333) Katowice 2017 1/ 2-1/2 (79) 6.b3 6.Nf3 6...Nf6 6...Bf5= 7.Bd3 Bxe4 8.Bxe4 Nf6 7.Bd3 7.Nxf6+ exf6 8.Qd2 7...Nd5 7...Nxe4 should be considered. 8.Bxe4 Nd7 8.c4 8.Bd2= 8...Nxe3 9.fxe3 Na6 9...f5 10.c5 Qd8 10.Nf3= c5 10...Qa5+= 11.Kf2 Bh6 11.Rc1 11.a3 stays ahead. 11...Bg7 Better is 11...Bh6 12.Qd2 cxd4 12.Bb1 12.0-0= 12...Bg4 12...cxd4 Strongly threatening ...f5. 13.exd4 Bg4 13.d5 Qa5+ 13...f5 14.Nc3 Bxf3 15.gxf3 e6 14.Kf2 14.Qd2!= Qxd2+ 15.Nexd2 14...Bb2 14...Nc7 15.Rc2 White has counterplay Qa3 15...Bg7= 16.Qe2 Bg7 17.Rd2 17.Rf1 feels stronger. 17...0-0-0 17...0-0= 18.Ng3 White should play 18.Rhd1 18...h5 18...f5 19.h3 19.Ne4 is superior. 19...h4 19...Bxf3= 20.gxf3 Nc7 20.Nf1 20.Ne4 Bh5 21.Rhd1 20...Bd7 20...Bh5 21.e4 Bc3 21...Nb4= 22.Rc2 22.Rd3± Bg7 23.Ne3 22...Ba1 22...Bd4+ 23.Nxd4 cxd4 23.Ne3 Nb4 24.Rd2 Bc3 25.Rdd1 Kb8 25...Qa6= remains equal. 26.Rhf1± f6 27.Kg1 b6 27...Qa5 28.Rf2 Rdg8 29.Nc2 29.e5!+- 29...Nxc2 30.Qxc2 White should try 30.Bxc2± Rh5 31.Bb1 30...Qa5 30...Bd4!= keeps the balance. 31.Re2?
31.e5± 31...Rh5 31...g5!= 32.Rd3 32.Re3± Ba1 33.Qe2 32...Be5= 33.Nxe5 Rxe5 34.Rf3 34.Rd1= 34...g5! 35.Ref2 g4 36.hxg4 Bxg4 37.Rf4 37.Re3 37...h3 37...Qe1+ 38.Rf1 Qe3+ 39.Qf2 Qc3 38.Qd2! Qxd2 39.Rxd2 Bd7 39...Reg5 40.Rff2 40.Bd3= 40...Kc7 41.Kh1 41.d6+ was necessary. Kd8 42.Kh2 41...Rh5-+ 42.gxh3 42.Kg1 42...Bxh3
( -> ...Bg2+) But not 42...Rxh3+ 43.Rh2 43.Rh2 Kd6 44.Bc2 Rhh8 45.Rdf2 Ke5 46.Bb1? 46.Bd3 46...Rg3 Precision: White = 17%, Black = 25%. 0–1
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WhiteEloWBlackEloBRes
Vierjoki,T1759woodzulu20030–1

The highest rated games that reached the position after 4.Be3 are these two old games.

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MoveNResultElo
Position not in LiveBook
1.e4 g6 2.d4 d6 3.Nc3 c6 4.Be3 d5 5.Nf3 Bg7 6.h3 Nh6 7.Qd2 dxe4 8.Bxh6 Bxh6 9.Qxh6 exf3 10.Qg7 Rf8 11.0-0-0 Qd6 12.d5 Nd7 13.dxc6 Qf4+ 14.Kb1 bxc6 15.g3 Qe5 16.Qh6 Rb8 17.Qd2 Rg8 18.Bc4 Kf8 19.Rhe1 Qf6 20.Bb3 Nc5 21.Qh6+ Ke8 22.Qe3 Nxb3 23.axb3 Kf8 24.Qh6+ Ke8 25.Ne4 Qe5 26.Nd6+ exd6 27.Rxe5+ dxe5 28.Qg5 Be6 29.Qxe5 Rc8 30.h4 Kf8 31.Qf6 Bd5 32.Re1 Re8 33.Rxe8+ Kxe8 34.c4 Be6 35.Qxf3 Kd7 36.Qe3 Ra8 37.g4 a5 38.Qd4+ Kc7 39.h5 gxh5 40.gxh5 a4 41.b4 Rg8 42.b5 Kb7 43.Qc5 Rc8 44.b6 Ka6 45.f4 f5 46.Qe7 1–0
  • Start an analysis engine:
  • Try maximizing the board:
  • Use the four cursor keys to replay the game. Make moves to analyse yourself.
  • Press Ctrl-B to rotate the board.
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  • Download&Clip PGN/GIF/FEN/QR Codes. Share the game.
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WhiteEloWBlackEloBRes
Sion Castro,M2405Ehlvest,J26501–0
Rocha,S2405Blatny,P25400–1
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