Game 4/10
The MCGP2024 makes a comeback but not without a blunder!
[Event "Modern book"]
[Round "4"]
[White "Maia1900 6ply"]
[Black "MCGP2024"]
[Result "0-1"]
[ECO "B24"]
1.e4 c5 2.Nc3 Nc6 3.g3 $6 ( {Theory prefers} 3.Nf3 $1 ) ( {Or} 3.Nge2 $1 ) ( {Or} 3.Bb5 $1 ) 3...g6 4.Bg2 Bg7 5.d3 Rb8 $5 ( {Theory prefers} 5...d6 $1 ) 6.Nge2 d6 {Out of book} 7.O-O b5 $1 8.f4 Bd7 9.f5 Nf6 10.h3 b4 11.Nb1 O-O 12.g4 Qc8 13.Nd2 Ne5 14.Ng3 $6 {Deep HIARCS 15.3: -0.42/21} ( 14.a3 {Deep HIARCS 15.3: 0.00/20} 14...a5 15.Nf4 g5 16.Nd5 Nxd5 17.exd5 h6 18.axb4 axb4 19.Ne4 f6 20.b3 Ra8 21.Rxa8 Qxa8 22.Be3 Rb8 23.Re1 Rc8 24.Nd2 Qa2 25.Nc4 ) 14...Bc6 15.Nf3 $6 {Deep HIARCS 15.3: -0.49/20} ( 15.a3 {Deep HIARCS 15.3: -0.17/19} 15...Qc7 16.axb4 Rxb4 17.c3 Rb5 18.g5 Nfd7 19.Nf3 Nxf3+ 20.Rxf3 Qb6 21.h4 Ne5 22.Rf1 f6 23.Kh2 Rb8 24.d4 cxd4 25.cxd4 ) 15...Nxf3+ 16.Qxf3 Nd7 17.g5 $6 {Deep HIARCS 15.3: -1.06/21} ( 17.Qd1 {Deep HIARCS 15.3: -0.72/21} 17...Qb7 18.Kh2 Qc7 19.Qe2 e6 20.Rb1 exf5 21.gxf5 Qd8 22.Qf2 Be5 23.Bf4 Qh4 24.Bxe5 Nxe5 25.Qf4 Qxf4 26.Rxf4 g5 27.Rff1 f6 28.Ra1 Nf7 ) 17...Qa6 18.h4 $6 {Deep HIARCS 15.3: -1.71/20} ( 18.a3 {Deep HIARCS 15.3: -1.34/21} 18...c4 19.dxc4 Qxc4 20.Qd3 Bd4+ 21.Kh1 Qxd3 22.cxd3 Be5 23.Ne2 Bb5 24.Rf3 Nc5 25.axb4 Nxd3 26.Nc3 Nxc1 27.Rxc1 Bc4 28.Nd5 Bxd5 29.exd5 gxf5 30.Rc7 Rfe8 31.Rxa7 Rxb4 32.Rxf5 Rxb2 33.Rf1 Rc2 34.Rb7 Kg7 ) 18...Bd4+ $6 {Deep HIARCS 15.3: -1.13/22} ( 18...b3 {Deep HIARCS 15.3: -1.71/20} 19.c3 bxa2 20.Qe3 Bb5 21.Bh3 Bxd3 22.f6 exf6 23.Bxd7 Bxf1 24.Nxf1 Rbd8 25.Bg4 Qa4 26.Nd2 Rfe8 27.Be2 fxg5 28.hxg5 Be5 ) 19.Kh1 b3 20.c3 Bh8 21.f6 $6 {Deep HIARCS 15.3: -2.17/20} ( 21.Qe2 {Deep HIARCS 15.3: -1.47/20} 21...Be5 22.Kh2 bxa2 23.b4 Rxb4 24.Rxa2 Ra4 25.Rc2 Ra1 26.c4 Qa4 27.h5 Qb3 28.Rd2 Bc3 29.Rc2 Bd4 30.Bf3 Ne5 31.Rd2 Bc3 32.hxg6 hxg6 ) 21...Ne5 22.Qe2 $6 {Deep HIARCS 15.3: -2.47/22} ( 22.Qd1 {Deep HIARCS 15.3: -1.58/20} 22...exf6 23.gxf6 bxa2 24.d4 Nd3 25.Rf3 c4 26.Qd2 Rfe8 27.Rf1 Bd7 28.h5 Re6 29.Bh3 Rxf6 30.Bxd7 Rxf1+ 31.Nxf1 Qb7 32.Bh3 Nxc1 33.Qxc1 Qxb2 34.Qxb2 Rxb2 35.hxg6 hxg6 36.Bg4 Bf6 37.Bd7 g5 38.Bc6 g4 39.Bd5 ) 22...exf6 23.gxf6 bxa2 24.Nf5 $4 {Deep HIARCS 15.3: -5.10/21} ( 24.d4 {Deep HIARCS 15.3: -1.87/22} 24...Bb5 25.Qd2 cxd4 26.cxd4 Nd7 27.Rf3 Bxf6 28.Bh3 Bg7 29.b3 Rbc8 30.Bb2 f5 31.Nxf5 gxf5 32.Rg3 Rf7 33.d5 Ne5 34.Bxf5 Bd7 35.Bxd7 Rxd7 36.Qg2 Ng6 37.Bxg7 Rxg7 38.Rxa2 ) 24...gxf5 25.Rxf5 h5 $2 {Deep HIARCS 15.3: 0.00/24} ( 25...Bxf6 {Deep HIARCS 15.3: -5.09/20} 26.Rxf6 Qxd3 27.Qxd3 Nxd3 28.Rxa2 Nxc1 29.Rxa7 Rxb2 30.Rxd6 Rc8 31.Rf6 Bb7 32.Rf5 Nd3 33.Rg5+ Kf8 34.e5 Bxg2+ 35.Rxg2 Rxg2 36.Kxg2 Nxe5 37.Kg3 Re8 38.Ra4 Nd3 39.Kf3 Kg7 40.Re4 Rd8 41.Ke2 Kh6 42.Rc4 Kh5 43.Ke3 ) 26.Qe3 $4 {Deep HIARCS 15.3: -4.39/21} ( 26.Qxh5 {Deep HIARCS 15.3: 0.00/24} 26...Ng6 27.Qh6 Bxf6 28.Rxf6 Qxd3 29.Rxg6+ fxg6 30.Qxg6+ Kh8 31.Qh6+ Kg8 32.Qg6+ ) 26...Ng6 27.Qh6 Rfd8 $4 {Deep HIARCS 15.3: +1.88/23} ( 27...Rfe8 {Deep HIARCS 15.3: -3.47/20} 28.Rxh5 Bxf6 29.Qh7+ Kf8 30.Rf5 Re6 31.h5 Ne5 32.Rxf6 Rxf6 33.Bg5 Ke7 34.Bxf6+ Kxf6 35.d4 Rxb2 36.dxe5+ Ke7 37.Qf5 Qd3 38.exd6+ Qxd6 39.Rf1 Kd8 40.Kg1 Rb1 41.e5 Bxg2 42.Rxb1 axb1=Q+ 43.Qxb1 Qd5 44.Qb8+ Ke7 45.Qxa7+ Ke6 46.h6 Kxe5 ) 28.Rxh5 Bxf6 29.Qh7+ Kf8 30.Rf5 Qxd3 31.Rxf6 Ne5 32.Bh6+ $2 {Deep HIARCS 15.3: -0.67/21} ( 32.Rxa2 {Deep HIARCS 15.3: +0.91/20} 32...a6 33.Rf1 Ke8 34.Bg5 Kd7 35.Rxf7+ Nxf7 36.Qxf7+ Kc8 37.Bxd8 Kxd8 38.Kh2 Rb7 39.Qf6+ Kc7 40.e5 Bxg2 41.Qxd6+ Qxd6 42.exd6+ Kxd6 43.Kxg2 Kd5 44.Kf3 Kc4 45.h5 Kb3 46.Ra5 c4 47.Rc5 Rh7 48.Kg4 Rh8 49.Rc6 ) 32...Ke8 33.Raf1 $4 {Deep HIARCS 15.3: -4.20/21} ( 33.Rxa2 {Deep HIARCS 15.3: -0.72/19} 33...Qb1+ 34.Rf1 Qxa2 35.Bh3 Bxe4+ 36.Qxe4 Rxb2 37.Bf4 Re2 38.Qh7 Ng6 39.Qg8+ Nf8 40.Kg1 Qc2 41.Bg5 Qg6 42.Qxg6 Nxg6 43.Bxd8 Kxd8 44.Rxf7 Re7 45.Rf6 Nxh4 46.Rxd6+ Kc7 47.Ra6 Re3 48.Bf1 Kb8 49.Ra3 Rg3+ 50.Kf2 Nf5 51.Ke1 Nd6 52.Kd2 Ne4+ 53.Kc2 ) 33...Bd5 $1 34.Qg7 $2 {Deep HIARCS 15.3: -9.48/21} ( 34.Bg5 {Deep HIARCS 15.3: -4.34/19} 34...Bc4 35.Rc1 Kd7 36.b4 Kc7 37.Qf5 Qg3 38.Bf1 Bxf1 39.Qxf1 Rh8 40.Qf4 Qh3+ 41.Qh2 Qxh2+ 42.Kxh2 Ng4+ 43.Kg3 Nxf6 44.Bxf6 Rhg8+ 45.Kf3 Rg6 46.e5 Re8 47.Ra1 dxe5 48.Bg5 f6 ) 34...Bc4 $1 35.Bf4 Qxf1+ $1 36.Bxf1 a1=Q 37.Bxe5 dxe5 38.Qg8+ Ke7 39.Qg5 Be6 40.Kg1 Kd6 $1 41.Qd2+ Kc6 42.Qh6 Qe1 $1 43.Rxe6+ fxe6 44.Qxe6+ Rd6 45.Qf7 Qg3+ 46.Kh1 Qxh4+ 47.Kg2 Qg4+ 48.Kf2 Rxb2+ 49.Ke3 Qg3+ 50.Qf3 Qg5+ 51.Qf4 Qxf4# {White loses 0.41 pawn per move (3 blunders, 2 mistakes, 6 inaccuracies), Black loses 0.14 pawn per move (1 blunder, 1 mistake, 1 inaccuracy).} 0-1
This time the Maia bot is again trying a King-side attack:
It looks quite bad for Black but the position is not straight forward. Black is up a Knight, has a Pawn keeping one of White’s Rooks busy, and White’s Bishops are not exactly helping a great deal. Black does have to be very careful though!
A little later and the position is:
Here Maia played 32. Bh6+ Why not take the troublesome pawn on a2? Play continued 32…Ke8 33. Raf1?? Should have taken the pawn! From here the MCGP2024 played correctly and won the game. I think the Maia bot likes to check at the cost of making a better move.
An interesting game!
Ray