I believe I had the wrong position here. Correct moves should be 1.d4 nf6 2.Nf3 d5 3.c4 e6 4.Nc3. So I did the analysis again but with the correct position and luckily SF17.1 still plays Bb4 here anyways, here's the new analysis:Leto wrote: ↑Tue Nov 18, 2025 8:36 am After 1.d4 nf6 2.c4 e6 3.nc3 SF17.1 plays 3...Bb4.
analysis:
[+0.12] d=51 3...Bb4 4.e3 O–O 5.–Bd3 d5 6.Nf3 c5 7.cxd5 exd5 8.dxc5 Bg4 9.OO Bxc5 10.–h3 Bh–5 11.g4 Bg6 12.Bxg6 fxg6 13.g–5 Ne4 –14.Nxe4 dxe4 15.Qxd8 Rxd8 16.Nd2 Re8 17.a3 Nc6 18.b4 –Bf8 19.Kg–2 Rad8 20.Ra2 Rd5 21.h4 N–e7 22.Rh1 –Nf5 23.Rc2 a5 24.bxa5 Rx–a5 25.Rc4 –b5 26.Rc6 Bxa3 27.Bxa3 Rxa3 28.Rb6(0:08:59) 3950715kN
[+0.12] d=51 3...Bb4(0:08:42) 3829673kN
[+0.14] d=51 3...Bb4(0:08:31) 3751488kN
[+0.13] d=51 3...Bb4 4.Nf3(0:08:31) 3749868kN
[+0.10] d=51 3...Bb4 4.e3 OO 5.Nf3 d5 6.Bd3 c5 7.cxd5 exd5 8.dxc5 Bg4 9.OO Bxc5 10.h3 Bh5 11.a3 Nc6 12.b4 Bd6 13.Bb2 a5 14.Be2 axb4 15.axb4 Rxa1 16.Qxa1 Bxb4 17.Nb5 Be7 18.Nbd4 Nxd4 19.Bxd4 Bxf3 20.Bxf3 b5 21.Rc1 b4 22.Qa7 Bd6 23.Rc6 Qe7 24.Qa2 Rb8(0:08:30) 3743733kN
[+0.10] d=50 3...Bb4 4.e3 OO 5.Nf3 d5 6.Bd3 c5 7.cxd5 exd5 8.dxc5 Bg4 9.OO Bxc5 10.h3 Bh5 11.a3 Nc6 12.b4 Bd6 13.Bb2 a5 14.Be2 axb4 15.axb4 Rxa1 16.Qxa1 Bxb4 17.Nb5 Be7 18.Nbd4 Nxd4 19.Bxd4 Bxf3 20.Bxf3 b5 21.Rc1 b4 22.Qa7 Bd6 23.Rc6 Qe7 24.Qa2 Rb8 25.g3(0:08:27) 3717772kN
[+0.12] d=50 3...Bb4(0:08:22) 3679733kN
[+0.15] d=50 3...Bb4 4.Nf3(0:08:18) 3651057kN
[+0.11] d=50 3...Bb4(0:07:47) 3432277kN
[+0.13] d=50 3...Bb4 4.e3(0:07:35) 3348181kN
[+0.11] d=50 3...Bb4 4.Nf3 OO 5.e3 d5 6.Bd3 dxc4 7.Bxc4 c5 8.a3 Bxc3 9.bxc3 Qc7 10.Be2 b6 11.Bb2 Rd8 12.OO Ba6 13.c4 cxd4 14.Nxd4 Nc6 15.Qa4 Bb7 16.Rfd1 Nxd4 17.exd4 Qf4 18.Qb3 Ne4 19.Qe3 Qxe3 20.fxe3 Rac8 21.Rdc1 h6 22.a4 Nd2 23.Rc3 Rc7 24.Rc2 Nb3(0:07:32) 3328020kN
[+0.10] d=50 3...Bb4 4.Nf3 OO 5.e3 d5 6.Bd3 dxc4 7.Bxc4 c5 8.a3 Bxc3 9.bxc3 Qc7 10.Be2 b6 11.Bb2 Rd8 12.OO Ba6 13.c4 cxd4 14.Nxd4 Nc6 15.Qa4 Bb7 16.Rfd1 Nxd4 17.exd4 Qf4 18.Qb3 Ne4 19.Qe3 Qxe3 20.fxe3 Rac8 21.Rdc1 h6 22.a4 Nd2 23.Rc3 Rc7 24.Rc2 Nb3 25.Rd1(0:07:27) 3289920kN
[+0.09] d=49 3...Bb4 4.Nf3 OO 5.e3 d5 6.Bd3 dxc4 7.Bxc4 c5 8.a3 Bxc3 9.bxc3 Qc7 10.Be2 b6 11.Bb2 Rd8 12.OO Ba6 13.c4 cxd4 14.Nxd4 Nc6 15.Qa4 Bb7 16.Rfd1 Nxd4 17.exd4 Qf4 18.Qb3 Ne4 19.Qe3 Qxe3 20.fxe3 Rac8 21.Rdc1 h6 22.a4 Nd2 23.Rc3 Rc7 24.Rc2 Nb3 25.Rd1 Rdc8(0:07:27) 3289528kN
[+0.07] d=49 3...Bb4(0:06:32) 2888765kN
[+0.13] d=49 3...Bb4 4.e3(0:05:54) 2618411kN
[+0.07] d=49 3...Bb4(0:04:57) 2206370kN
[+0.09] d=49 3...Bb4 4.Nf3(0:04:40) 2080743kN
[+0.07] d=49 3...Bb4 4.Nf3(0:04:36) 2044985kN
[+0.04] d=49 3...Bb4 4.Nf3(0:04:14) 1888967kN
[+0.03] d=49 3...Bb4(0:03:24) 1520394kN
[+0.07] d=50 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 dxc4 10.Bxc4 Nb4 11.Qb1 b6 12.a3 Ba6 13.Be2 Bxe2 14.Nxe2 Nc6 15.O–O Ne7 16.Rc1 Rc8 17.b4 Ng6 18.Rc6 e5 19.dxe5 Qd7 20.Qc2 Nxe5 21.Nxe5 Rxe5 22.Rd1 Rd5 23.Nf4 Rd6 24.Rxd6 Bxd6 25.Bc3 Qe7 26.h3 Rd8 27.Nd5(0:09:12) 4181523kN
[+0.09] d=50 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 dxc4 10.Bxc4 Nb4 11.Qb1 b6 12.a3 Ba6 13.Be2 Bxe2 14.Nxe2 Nc6 15.O–O Ne7 16.Rc1 Rc8 17.b4 Ng6 18.Rc6 e5 19.dxe5 Qd7 20.Qc2 Nxe5 21.Nxe5 Rxe5 22.Rd1 Rd5 23.Nf4 Rd6 24.Rxd6 Bxd6 25.Bc3 Qe7 26.h3 Rd8 27.Nd5 Nxd5(0:09:10) 4170416kN
[+0.11] d=50 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 dxc4 10.Bxc4 Nb4 11.Qb1 b6 12.a3 Ba6 13.Be2 Bxe2 14.Nxe2 Nc6 15.O–O Ne7 16.Rc1 Rc8 17.b4 Ng6 18.Rc6 e5 19.dxe5 Qd7 20.Qc2 Nxe5 21.Nxe5 Rxe5 22.Rd1 Rd5 23.Nf4 Rd6 24.Rxd6 Bxd6 25.Bc3 Qe7 26.h3 Rd8 27.Nd5 Nxd5 28.Rxd5(0:09:10) 4168464kN
[+0.12] d=50 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 dxc4 10.Bxc4 Nb4 11.Qb1 b6 12.a3 Ba6 13.Be2 Bxe2 14.Nxe2 Nc6 15.O–O Ne7 16.Rc1 Rc8 17.b4 Ng6 18.Rc6 e5 19.dxe5 Qd7 20.Qc2 Nxe5 21.Nxe5 Rxe5 22.Rd1 Rd5 23.Nf4 Rd6 24.Rxd6 Bxd6 25.Bc3 Qe7 26.h3 Rd8 27.Nd5 Nxd5 28.Rxd5 c5(0:09:09) 4161508kN
[+0.11] d=49 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 dxc4 10.Bxc4 Nb4 11.Qb1 b6 12.a3 Ba6 13.Be2 Bxe2 14.Nxe2 Nc6 15.O–O Ne7 16.Rc1 Rc8 17.b4 Ng6 18.Rc6 e5 19.dxe5 Qd7 20.Qc2 Nxe5 21.Nxe5 Rxe5 22.Rd1 Rd5 23.Nf4 Rd6 24.Rxd6 Bxd6 25.Bc3 Qe7 26.h3 Rd8 27.Nd5 Nxd5 28.Rxd5 c5 29.Qf5(0:08:57) 4071787kN
[+0.10] d=49 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 b6 10.a3 Bb7 11.cxd5 exd5 12.O–O Ne7 13.b4 Ne4 14.Ne5 Nxd2 15.Qxd2 c6 16.Bd3 a5 17.Rab1 axb4 18.axb4 g6 19.Ne2 Qd6 20.Qc3 Bg7 21.Rfc1 Ra7 22.h4 Rea8 23.Rb3 h5 24.g3 Ra4 25.Nf4 R8a7 26.Nf3(0:08:54) 4049354kN
[+0.12] d=49 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 b6 10.a3 Bb7 11.cxd5 exd5 12.O–O Ne7 13.b4 Ne4 14.Ne5 Nxd2 15.Qxd2 c6 16.Bd3 a5 17.Rab1 axb4 18.axb4 g6 19.Ne2 Qd6 20.Qc3 Bg7 21.Rfc1 Ra7 22.h4 Rea8 23.Rb3 h5 24.g3 Ra4 25.Nf4 R8a7 26.Nf3 b5(0:08:54) 4047016kN
[+0.13] d=48 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 b6 10.a3 Bb7 11.cxd5 exd5 12.O–O Ne7 13.b4 Ne4 14.Ne5 Nxd2 15.Qxd2 c6 16.Bd3 a5 17.Rab1 axb4 18.axb4 g6 19.Ne2 Qd6 20.Qc3 Bg7 21.Rfc1 Ra7 22.h4 Rea8 23.Rb3 h5 24.g3 Ra4 25.Nf4 R8a7 26.Nf3 b5 27.Be2(0:08:44) 3972656kN
[+0.15] d=48 4...Bb4 5.Qa4(0:08:43) 3966250kN
[+0.11] d=48 4...Bb4(0:08:31) 3882489kN
[+0.12] d=48 4...Bb4 5.Qa4(0:08:30) 3875291kN
[+0.11] d=48 4...Bb4 5.Qa4(0:08:26) 3844180kN
[+0.10] d=48 4...Bb4 5.e3 O–O 6.Be2 c5 7.O–O dxc4 8.Bxc4 cxd4 9.exd4 b6 10.Qe2 Bb7 11.Bg5 Nbd7 12.Rac1 Bxc3 13.Rxc3 Qb8 14.Bh4 Nd5 15.Bxd5 Bxd5 16.Rfc1 Qb7 17.Qc2 Bxf3 18.gxf3 Nf6 19.Bxf6 gxf6 20.Qe4 Qxe4 21.fxe4 Rfd8 22.Rd1 Rd6 23.Ra3 Rc8 24.d5 Rc2 25.Rxa7 Rxb2 26.Rb7(0:07:42) 3525225kN
[+0.07] d=47 4...Bb4 5.e3 O–O 6.Be2 c5 7.O–O dxc4 8.Bxc4 cxd4 9.exd4 b6 10.Qe2 Bb7 11.Bg5 Nbd7 12.Rac1 Bxc3 13.Rxc3 Qb8 14.Bh4 Nd5 15.Bxd5 Bxd5 16.Rfc1 Qb7 17.Qc2 Bxf3 18.gxf3 Nf6 19.Bxf6 gxf6 20.Qe4 Qxe4 21.fxe4 Rfd8 22.Rd1 Rd6 23.Ra3 Rc8 24.d5 Rc2 25.Rxa7 Rxb2 26.Rb7 exd5(0:06:49) 3132395kN
[+0.08] d=47 4...Bb4(0:06:00) 2772592kN
[+0.10] d=47 4...Bb4(0:05:58) 2754134kN
[+0.12] d=47 4...Bb4 5.Bg5(0:05:48) 2685487kN
[+0.10] d=47 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 Nb4 10.Qb1 dxc4 11.Bxc4 b6 12.a3 Ba6 13.Be2 Bxe2 14.Nxe2 Nc6 15.O–O Ne7 16.b4 Ng6 17.Rc1 Qd7 18.Be1 a6 19.Ra2 Rec8 20.Rac2 a5 21.h3 axb4 22.Bxb4 Bd6 23.Rc6 Ne7 24.R6c4 Bxb4 25.Qxb4(0:04:55) 2298131kN
[+0.09] d=46 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.Be2 Nb4 10.Qb1 dxc4 11.Bxc4 b6 12.a3 Ba6 13.Be2 Bxe2 14.Nxe2 Nc6 15.O–O Ne7 16.b4 Ng6 17.Rc1 Qd7 18.Be1 a6 19.Ra2 Rec8 20.Rac2 a5 21.h3 axb4 22.Bxb4 Bd6 23.Rc6 Ne7 24.R6c4 Bxb4 25.Qxb4 Nfd5(0:04:55) 2293959kN
[+0.12] d=46 4...Bb4 5.Qa4 Nc6 6.e3 O–O 7.Qc2 Re8 8.Bd2 Bf8 9.a3 e5 10.dxe5 Nxe5 11.cxd5 Nxd5 12.Nxe5 Rxe5 13.e4 Nxc3 14.Bxc3 Rc5 15.Bd3 Bd6 16.O–O Be5 17.f4 Bxc3 18.bxc3 Qe7 19.e5 g6 20.Rae1 Bd7 21.Re3 b6 22.Rfe1 Kh8 23.h3 Rg8(0:04:50) 2256629kN
