Hello,
round 1 for group 2 is now completed, with a kind of surprise: a fairly balanced match
with the Novag Constellation Expert featuring some 100 CElo or so advantage, compared to its opponent the Mephisto Rebell 5. This should theorically lead to 64 to 36 points over 100 games; nevertheless the Rebell 5 won both games!
As soon as move #14, the Constellation Expert attacks the Black King and gathers three pieces in the area. Unfortunately, few moves later, with a choice between two light pieces to attack further on (a Knight and a Bishop, with support from the Queen), the Expert chose the wrong one (used them in the wrong sequence) and the attack hanged fire with some material loss. It is then a long way for the Rebell to achieve the win as Black.
In the second game, none of both computers seems to be aware of the rule about a passed Pawn file; where Rooks belong to, behind the Pawn (whatever for support or defense). Only once the Pawn reached the seventh rank did the Expert realize its Rook was required there; thus postponing the promotion. But few moves later it blundered badly, letting the Rebell move its own Rook behind its passed Pawn, game over...
[Event "The 64-cup"]
[Site "?"]
[Date "2023.10.08"]
[Round "2-1"]
[White "Novag Constellation Expert (lv 10)"]
[Black "Mephisto Rebell 5 (2)"]
[Result "0-1"]
[WhiteElo "1916"]
[BlackElo "1816"]
[EventDate "2023.09.26"]
[ECO "C54"]
[PlyCount "150"]
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Bd2 Bxd2+ 8.Nbxd2 d5 9.exd5 Nxd5 10.O-O O-O {Out of book} 11.Ne5 Nxd4 12.Nb3 Nxb3 13.Bxd5 Nxa1 14.Bxf7+ {Out of book} 14...Kh8 15.Qh5 g5 16.Qh6 $1 Bf5 $6 {Rg8 seemed better:} ( 16...Rg8 17.Bxg8 Kxg8 18.Rxa1 ) 17.Ng6+ $2 {looked interesting, but correct move was Bg6:} ( 17.Bg6 Bxg6 18.Nxg6+ Kg8 19.Nxf8 Qxf8 20.Qxg5+ {with a better position for White.} ) 17...Bxg6 18.Bxg6 Qd7 19.Be4 Rad8 20.Qxg5 Qd4 21.Qh4 Rd7 22.b3 Re8 23.Qh6 Qxe4 24.h3 Rg7 25.g3 Nc2 26.Qf6 Ne1 27.f3 Qe6 28.Qxe6 Rxe6 29.g4 Nd3 30.f4 Re3 31.Kg2 Rf7 32.f5 Re2+ 33.Kf3 Rfe7 34.Kg3 R7e3+ 35.Kh4 Rxa2 36.Rh1 Rb2 37.Ra1 a6 38.Rf1 Nf2 39.Rc1 Rbxb3 40.Rxc7 Rxh3+ 41.Kg5 h6+ 42.Kg6 Rbc3 43.Rxb7 Rb3 44.Rc7 Rb8 45.Rh7+ Kg8 46.f6 Rhb3 47.Rg7+ Kf8 48.Kxh6 R8b7 49.Rg5 Kf7 50.Rg7+ Kxf6 51.Rg6+ Ke5 52.Rxa6 Nxg4+ 53.Kg5 Ne3 54.Ra1 Rb2 55.Ra5+ Kd4 56.Ra4+ Kd5 57.Kf4 Nc4 58.Ra8 Rf7+ 59.Kg3 Rff2 60.Kh4 Rh2+ 61.Kg5 Rbg2+ 62.Kf4 Rf2+ 63.Kg5 Ke4 64.Ra4 Rhg2+ 65.Kh4 Kd5 66.Ra8 Re2 67.Kh3 Rh2+ 68.Kg4 Ne5+ 69.Kg5 Rhg2+ 70.Kh5 Nd3 71.Rd8+ Kc4 72.Kh6 Rg1 73.Rc8+ Nc5 {Rebell 5 announces mate in 3} 74.Rxc5+ Kxc5 75.Kh5 Rh2# 0-1
[Event "The 64-cup"]
[Site "?"]
[Date "2023.10.08"]
[Round "2-1"]
[White "Mephisto Rebell 5 (2)"]
[Black "Novag Constellation Expert (lv 10)"]
[Result "1-0"]
[WhiteElo "1816"]
[BlackElo "1916"]
[EventDate "2023.09.26"]
[ECO "E12"]
[PlyCount "135"]
1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.Nc3 Bb7 5.Bg5 Be7 6.e3 c5 7.Bd3 {Out of book} 7...O-O 8.O-O cxd4 9.Nxd4 {Out of book} 9...d5 10.cxd5 exd5 11.Nf5 Nbd7 12.Rc1 h6 13.Nxe7+ Qxe7 14.Bf4 Qb4 15.Qe2 d4 16.a3 Qc5 17.b4 Qc6 18.Ne4 Qd5 19.f3 g5 20.Nxf6+ Nxf6 21.e4 Qd8 22.Bc7 Qe7 23.Bg3 Rac8 24.Qb2 Rfd8 25.Rxc8 Bxc8 26.Rc1 Bb7 $6 {Ne8 to prevent Rc7 was more sure} 27.Bf2 $2 {Rc7 was much more dynamic} 27...Nh5 28.Bxd4 $6 {weakens the d file} 28...Qd7 29.Rc4 $2 {questionable defense. Securing Be2 or Bf1 was a better choice.} 29...b5 30.Rc1 Qxd4+ 31.Qxd4 Rxd4 32.Bxb5 a6 33.Be8 Nf6 34.Bc6 Bc8 35.b5 axb5 36.Bxb5 Be6 37.a4 Rd2 38.a5 Kf8 $6 {the a4 passed pawn deserves the Black Rook control behind it, Ra2 was a better choice.} 39.a6 Ke7 $6 {again, Ra2 is to be played} 40.Rc7+ $6 {same inaccuracy from the Rebell: Ra1 was needed to support the passed Pawn.} 40...Nd7 41.a7 Ra2 42.h3 f6 43.Kh2 h5 44.Kg1 h4 45.Kh2 Ra1 46.Rb7 Kd6 47.g4 Ra5 48.Kg1 Ra2 49.Kf1 Ne5 $4 {the losing blunder: lets the White Rook gain access to the a file and support the passed Pawn.} 50.Rb6+ $1 Kc7 51.Ra6 {game over.} 51...Rxa6 52.Bxa6 Bc4+ 53.Kg2 Bxa6 54.a8=Q Be2 55.Qa7+ Kc6 56.Qe7 Nd7 57.Kf2 Bb5 58.e5 fxe5 59.Qxg5 Kd5 60.Qxh4 Nc5 61.Qd8+ Kc4 62.h4 Bc6 63.h5 Ne6 64.Qf6 Kd5 65.g5 Nf4 66.h6 Nd3+ 67.Ke3 Nf4 68.h7 {Constellation Expert resigns} 1-0
MfG,
Tibono