Good morning,
a rather balanced match now, with roughly 44/56 odds between Tandy Chess Champion 2150 and Systema Challenge.
I am rather happy with the Challenge's first game; it plays (as Black) with initiative, space gain, and advances a Pawn that will put enough pressure on the CC2150 to make it lose.
The second game is somewhat harder from the Challenge standpoint until middlegame, as the Tandy pushes back efficiently and controls space. Then the Chess Champion 2150 commits a mistake that will cost it entering the early endgame a Bishop and a Pawn down. Looks like a game over, as on top of that the Challenge can push a Pawn to promotion, reaching two Queens and a Bishop vs a single Queen. Fatal error, the tempo used to promote lets the ennemy Queen enter a checking repetition series, and the Challenge stupidly jettisons half a point.
Nevertheless, scoring 1.5 to 0.5, the Systema Challenge deserves a place into the quarter-final. Despite leaving the cup here, overall a successful competition from the Tandy 2150.
[Event "The 64-cup"]
[Site "?"]
[Date "2023.11.19"]
[Round "8th_final"]
[White "Tandy Chess Champion 2150 (lv A4)"]
[Black "Systema Challenge (Tibono setting lv 50)"]
[Result "0-1"]
[WhiteElo "1759"]
[BlackElo "1802"]
[EventDate "2023.09.26"]
[ECO "A11"]
[PlyCount "112"]
1.c4 c6 2.Nc3 d5 {Out of book} 3.cxd5 cxd5 4.d4 Nc6 5.Nf3 Nf6 6.Bf4 Bg4 7.Ne5 e6 8.Nxg4 {Out of book} 8...Nxg4 9.e4 Nf6 10.e5 Ne4 11.Bb5 Bb4 12.Bxc6+ bxc6 13.Bd2 Nxd2 14.Qxd2 O-O 15.O-O c5 16.a3 cxd4 17.axb4 dxc3 18.bxc3 Qc7 19.Qd4 Rfc8 20.Ra3 Qc6 21.Rfa1 h6 22.Qe3 Rc7 23.Qf3 Qc4 24.h3 a6 25.g3 Rc6 26.Rd1 Rb6 27.Rd3 Qc7 28.Re3 a5 29.Ra4 Rb5 30.Ra2 a4 31.Re1 a3 32.Raa1 a2 33.Re3 Qc4 34.h4 Ra3 35.Kg2 Rb6 36.h5 Rb5 37.Kh2 Rb7 38.Kh1 $6 {better give-up a Pawn in order to exchange the too powerful ennemy Queen and the advanced a-Pawn:} ( 38.Qe2 Rxc3 39.Qxc4 Rxc4 40.Rxa2 Rcxb4 ) 38...Rb3 39.Kg2 Rb1 40.Re1 Qb3 41.Rh1 Rc7 42.Rc1 Rxa1 43.Rxa1 Qb2 44.Qd1 Rxc3 45.Kg1 Rc2 46.Qe1 Rxf2 47.Rc1 Rh2 48.Qf1 Rxh5 49.Qf4 a1=Q 50.Rxa1 Qxa1+ 51.Kg2 Qh1+ 52.Kf2 Rh2+ {Challenge announces mate in 5} 53.Ke3 g5 54.Qxg5+ hxg5 55.Kd4 Rc2 56.Kd3 Qe4# 0-1
[Event "The 64-cup"]
[Site "?"]
[Date "2023.11.19"]
[Round "8th_final"]
[White "Systema Challenge (Tibono setting lv 50)"]
[Black "Tandy Chess Champion 2150 (lv A4)"]
[Result "1/2-1/2"]
[WhiteElo "1802"]
[BlackElo "1759"]
[EventDate "2023.09.26"]
[ECO "D45"]
[PlyCount "146"]
1.Nf3 d5 2.c4 c6 3.d4 e6 4.e3 Nf6 5.Nc3 Nbd7 6.Be2 Bb4 {Out of book} 7.Bd2 {Out of book} 7...O-O 8.cxd5 exd5 9.a3 Bd6 10.Qc2 Nb6 11.O-O Qe7 12.h3 Ne4 13.Nxe4 dxe4 14.Nh2 Bf5 15.Ng4 Nd5 16.Rac1 h6 17.Ba5 Rac8 18.Rfe1 b6 19.Bd2 Rfd8 20.Qa4 h5 21.Nh2 Qc7 22.Nf1 h4 23.Ba6 Qd7 24.Bxc8 Rxc8 25.Qa6 Qc7 26.Qc4 a5 27.Red1 Qd7 28.Rc2 Be6 29.Qa6 Bf5 30.Be1 Qc7 31.Nd2 Be7 32.Rdc1 c5 33.dxc5 Bxc5 $6 {pins itself in front of the threatened Queen. PxP was better.} 34.Nb3 Qe5 35.Nxc5 bxc5 36.Qxa5 Rb8 37.Rxc5 Be6 38.Rd1 Qxb2 39.Rcxd5 Bxd5 40.Qxd5 Qe2 41.a4 Rc8 42.a5 Re8 43.Qc6 Re6 44.Qd7 Kh7 45.Bc3 Rg6 46.Rd6 Rxd6 47.Qxd6 Qc2 48.Qd4 f6 49.a6 Qb1+ 50.Kh2 Qb8+ 51.g3 hxg3+ 52.fxg3 Qa8 53.a7 Kh6 54.Qd7 Kg6 55.Kg1 Kh6 56.Kg2 Kg6 57.Bd4 Kh6 58.Kh1 Kg6 59.Kh2 Kh6 60.Qf5 Qc6 61.Kg2 Qa8 62.Qf4+ Kg6 63.Qb8 Qc6 64.a8=Q $6 {pushing either of King side Pawns was much better, to avoid leaving the King behind a corridor. The game is a draw, now.} 64...Qc2+ 65.Kh1 Qd1+ 66.Kh2 Qe2+ 67.Kg1 Qe1+ 68.Kg2 Qe2+ 69.Kh1 Qf1+ 70.Kh2 Qf2+ 71.Kh1 Qf1+ 72.Kh2 Qf2+ 73.Kh1 Qf1+ 1/2-1/2
MfG,
Tibono