26 Apr 2015

C48 Four Knights: 4.Bb5, replies other than 4...Bb4 (1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 d6 5.h3 Bd7)

C48 Four Knights: 4.Bb5, replies other than 4...Bb4 (1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 d6 5.h3 Bd7)

This is from the first round of the 2014 August Banded Quartets I 1700-1800. This tournament was held at Red Hot Pawn. I won my group on round one with a seven point difference to the player who finished second. As only the group winners advanced to the second round, round two was somewhat tougher and I finished fourth in the five player group. In the second round there was only one group, so the winner of that also won the tournament and it was a player called chessicle. I had one good chance to get a winning position in this game, starting on move 31 but instead I made a really bad move. Luckily that move did not lose the game but after that the win was not possible anymore. I have added one mate in one, two mate in twos, one mate in three and one mate in four.

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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 e5 2.Nf3 Nc6 2...Nf6 3.Nc3 1/2-1/2 (59) Budde,R (1598)-Thielemann,J (2073) Doerentrup 2002 3.Nc3 3.Bb5 d6 4.h3 Nf6 1-0 (45) Van de Meerakker,N-Leber,J Waalwijk 2006 3...Nf6 4.Bb5 C48 Four Knights Game: Spanish Variation d6 5.h3 Bd7 C48 Four Knights: 4.Bb5, replies other than 4...Bb4 5...a6= 6.Bxc6+ bxc6 6.0-0 6.d4 deserves consideration. 6...Be7 6...a6= keeps the balance. 7.Bxc6 Bxc6 7.d3 Better is 7.d4± 7...0-0 7...a6= 8.Bxc6 Bxc6 7...h6 8.Re1 0-0 9.Bd2 a6 10.Ba4 b5 11.Bb3 Na5 12.Nd5 Nxb3 13.Nxf6+ Bxf6 14.axb3 c5 15.Ba5 Qc8 16.b4 Re8 17.c3 Bc6 18.bxc5 dxc5 19.Bb6 Bb7 20.Rc1 Re6 21.Ba5 Bd8 22.Bxd8 Mak,C-Mahadevan,A (1336) Hong Kong 2018 0-1 (48) 8.Bg5 8.a3 8...a6= 8...h6 9.Be3 a6 10.Bxc6 Bxc6 11.d4 exd4 12.Nxd4 Bxe4 13.Nxe4 Nxe4 14.Re1 c5 15.Nf5 Nf6 16.Bxh6 gxh6 17.Nxe7+ Kh8 18.Qf3 Nh7 19.Nf5 Qf6 20.Qd5 Rad8 21.Ng3 b5 22.Qc6 Ra8 23.Ne4 Van de Meerakker,N-Leber,J Waalwijk 2006 1-0 (45) 9.Bxc6N 9.Bc4 9.Ba4 b5 10.Bb3 Rb8 11.a3 Qc8 12.Kh2 Be6 13.Bxe6 Qxe6 14.b4 h6 15.Bxf6 Bxf6 16.Nd5 Bd8 17.c3 f5 18.Qe2 Rf7 19.Rad1 Ne7 20.Nxe7+ Bxe7 21.Nd2 d5 22.exd5 Qxd5 23.c4 Qe6 Budde,R (1598)-Thielemann,J (2073) Doerentrup 2002 1/2-1/2 (59) 9...Bxc6 9...bxc6 10.d4 exd4 11.Qxd4 h6 10.Nh2 10.a4= 10...Nd7 11.Bxe7 Qxe7 12.f4 12.Qg4= 12...exf4 13.Rxf4 13.Qg4 13...Ne5 13...f5! 14.Qe2 14.exf5 Qe3+ 14...fxe4 15.Rxf8+ Rxf8 16.dxe4 Re8 14.Qd2 14.Rf2= 14...Ng6 14...Qg5 15.Rf2 15.Rf5 15...Qe5 15...Qd7= 16.Ng4 Qd4 Black should try 16...Qa5= 17.Raf1 17.Ne3 17...f5 18.exf5 Rxf5 19.Kh1 Rxf2 20.Qxf2 20.Rxf2 is interesting. b5 21.Qe3 Qxe3 22.Nxe3 a5 23.a3 20...Qxf2 21.Rxf2 Re8
And now ...Re1+ would win. 22.Re2 Rxe2 22...Rf8 with more complications. 23.Kh2 b5 24.a3 Nf4 25.Rf2 h5 23.Nxe2 Endgame KBN-KNN Nh4 24.Ne3 Kf7 25.Kh2 Ng6 26.Kg3 Kf6 27.Nd4 Bd7 28.c3 Ne5 29.Nd5+ Kf7 30.Nxc7 Nxd3 31.b4 Nc1 32.a3! Nd3 33.Nd5 Ne5 34.Nb6 Be6 34...g5= 35.Nxe6 White should play 35.Kf4 35...Kxe6 KN-KN 36.Kf4 d5 37.g4 Nc6 38.c4 38.Na4!? 38...dxc4 The position is equal. 39.Nxc4 Kd5 40.Ne3+ Ke6 Accuracy: White = 15%, Black = 30%. ½–½
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WhiteEloWBlackEloBRes
VanemGrenberg1518Vierjoki,T1885½–½
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