Beauty contest

[jefk]

then i have to assemble them again, from different 'interesting-win' files,
would be some 'work'; copying/pasting from this forum maybe should be possible
but i haven't found out yet how to do it (maybe someone else knows?)

So finding the games again from my various files, would be some work;
could do that later, if you really would like that
eg. when reached 40 games or so.

and then you can remind me

[jefk]

nr 26, a Clemenz opening again.

[pgn]
[Event "Computer Chess Game"]
[Site "DESKTOP-G2238OJ"]
[Date "2025.09.14"]
[Round "1"]
[White "Rebel-Extreme-1.1"]
[Black "Rodin v8.00"]
[Result "1-0"]
[Annotator "EAS-Tool: 4 PawnUnits Sacrifice"]
[ECO "A00"]
[PlyCount "91"]
[GameId "2222637823513341"]
[EventDate "2025.??.??"]
[TimeControl "240+2"]

{A00: Irregular Openings} 1. h3 e5 2. d4 ({Relevant:} 2. e4 Nf6 3. Nc3 Nc6 4. Nf3 Bb4 5. a3 Bxc3 6. dxc3 d6 7. Bd3 O-O 8. Qe2 Qe7 {1-0 (31) Carlsen,M (2833)-Aravindh,C (2731) Titled Tuesday intern op 25th Mar Early Chess.com INT blitz 2025 (5)}) 2... e4 (2... exd4 $11 {5 Mazurok (Elo 2442) played exd4 in 2002), but then White can play of course the awesome gambit 3.c3)}) 3. Bf4 {[#]} d6 $146 ({Predecessor:} 3... d5 4. e3 Bd6 5. Bxd6 Qxd6 6. Nc3 (6. c4) 6... Nf6 7. g4 O-O 8. Nge2 Nbd7 9. Bg2 (9. g5) 9... h6 10. Ng3 g6 11. O-O c6 12. Nce2 Nh7 13. Qd2 $6 (13. f3) 13... Ng5 {0-1 (33) Brown,G (1757)-Kammin,S (1795) BCF-chT4 1920 (4NCL) online Lichess.org INT 2020 (7.72)}) 4. c4 h6 5. e3 g5 6. Bg3 Nf6 7. h4 {Strongly threatening h4xg5.} g4 8. Nc3 {White is clearly better.} Bg7 9. Nge2 O-O 10. Nf4 Bf5 11. Be2 c6 12. b4 a5 13. b5 Nbd7 14. O-O a4 15. Rb1 (15. Nxa4 Qa5 $16) 15... Re8 16. Qc2 (16. Nxa4 Qa5 $14) 16... c5 17. Rfd1 (17. Nxa4 cxd4 18. exd4 Qa5 $16) 17... a3 {[#]} 18. b6 $1 Ra6 (18... Bf8 19. Nfd5) 19. Ncd5 cxd4 20. Rxd4 Nxb6 21. Nxf6+ Bxf6 {[#]} 22. c5 $1 {Discovered Attack} Bxd4 23. exd4 Nd7 24. Bxa6 (24. Rxb7 Rc6 $18) 24... bxa6 25. Rb7 (25. cxd6 Nf6 $16) 25... dxc5 26. Nh5 Qc8 $2 {[#]} (26... Qe7 27. Qc3 Rc8 28. dxc5 (28. Qxa3 Kh7 $11) 28... f6) 27. Rxd7 $1 {Remove Defender} Bxd7 28. d5 {Dodges Qc8-c6} (28. Qxc5 $2 {loses.} Qxc5 29. Nf6+ Kh8 30. dxc5 Rd8 $19) (28. Nf6+ Kg7 29. Nxe8+ Qxe8 $11) 28... f5 $2 (28... Qd8 29. Qc3 (29. Qxc5 f6 $14) 29... f6 30. Nxf6+ (30. Qxf6 Qxf6 31. Nxf6+ Kg7 $16) 30... Kf7) 29. Qc3 $18 {White is clearly winning.} Re7 {Wards off Qc3-g7+} 30. Bd6 (30. Qxa3 Be8 31. Nf6+ Kf7 $11) 30... Be8 31. Nf6+ Kf7 32. Bxe7 (32. Bxc5 Rb7 (32... Rc7 $2 33. Nxe8 Qxe8 34. d6 $17) 33. Nh5 Kg6 (33... Rb1+ 34. Kh2 $15) 34. Nf4+ Kh7 $11) 32... Kxe7 {Endgame KQB-KQN. Black is two pawns up.} 33. Qe5+ Kf8 34. d6 Qd8 {Against Qe5-e7+} 35. Qxf5 Bf7 36. Nxe4 (36. Nxg4 Qxd6 37. Ne5 Qe6 $11) 36... a5 37. Qf4 ({And not} 37. Nxc5 Qxd6 38. Ne4 Qd4 $11) 37... Kg7 {Weighted Error Value: White=0.08 (flawless) /Black=0.42} 38. Qe5+ Kg6 {2} 39. h5+ {1} Kh7 {2} 40. Nf6+ {1} Kg7 {1} 41. Nxg4+ {1} Kf8 {2} 42. Nxh6 {1} Bg8 {2} 43. Nxg8 {1} Qe8 {1} 44. Qf6+ {1} Qf7 {3} 45. Qxf7+ {2} Kxf7 {0} 46. d7 {0 the pawn queens and then it's mate in 8} 1-0
[/pgn]

Strong positional-attacking play by Rebel-Ex.

[jefk]

game nr 27

with the awesome Devin gambit
https://en.wikipedia.org/wiki/Devin_Gambit

[pgn]
[Event "Computer Chess Game"]
[Site "DESKTOP-G2238OJ"]
[Date "2025.09.14"]
[Round "13"]
[White "Rebel-Extreme-1.1"]
[Black "Rodin v8.00"]
[Result "1-0"]
[Annotator "EAS-Tool: 3 PawnUnits Sacrifice found in this"]
[ECO "A50"]
[PlyCount "45"]
[GameId "2222640425973024"]
[EventDate "2025.??.??"]
[TimeControl "240+2"]

{A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6)} 1. d4 Nf6 2. c4 e6 3. g4 $146 {Devin gambit} d5 4. Nf3 dxc4 5. g5 Ne4 {[#]} 6. Bg2 $146 ({Predecessor:} 6. Qc2 Bb4+ 7. Nc3 Bxc3+ (7... Nd6 $15) 8. bxc3 $14 Nd6 9. e4 (9. Bg2 $11) 9... b5 $15 {White must now prevent ...Bc8-b7.} 10. e5 $2 ({White should play} 10. Rg1 $15) 10... Nf5 11. Ba3 (11. Qe4 $142 Qd5 12. Qxd5 exd5 13. Rb1) 11... Bb7 $19 12. Bg2 h6 13. h4 Nd7 14. O-O-O {and d4-d5! should not be overlooked} Nb6 15. gxh6 Rxh6 16. Rhg1 {0-1 (35) Luong,P (2160)-Ismayil,M (2165) Swiss Queens Wed #20 FIDE Online Arena INT blitz 2024 (1)}) 6... Bb4+ (6... Nc6 {simplifies} 7. O-O Bd7 8. Nc3 Nxc3 9. bxc3 Bd6) 7. Nbd2 c3 8. bxc3 {The position is equal.} Bxc3 {[#]} 9. Qc2 $1 Bxa1 $2 (9... O-O $11 {and Black is okay.}) (9... Nc6 10. Rb1) 10. Nxe4 $18 Bxd4 11. Nxd4 Qxd4 {[#]} 12. Bb2 $1 Qb4+ 13. Bc3 {This pair of bishops is nice.} Qc4 {[#]} 14. Qb2 $1 Nd7 $2 (14... e5) 15. Bxg7 Rg8 16. O-O Qa4 17. Qc3 {White is clearly winning.} c5 18. Nf6+ (18. Nxc5 $2 Nxc5 (18... Qxa2 19. Nxd7 Bxd7 20. Bf6 $18) 19. Bh6 Nd7 $19) 18... Nxf6 19. Bxf6 c4 20. Qd2 Qd7 21. Qc2 Qb5 22. Qxh7 Rf8 {Black got outplayed after the opening. Weighted Error Value: White=0.00 (flawless) /Black=0.56} 23. Be4 {preparing the pawn advance g6 with a later pawn promotion 1-0}
[/pgn]

Seeing such games i'm a bit surprised Rebel Extr. isn't rated higher (P5 seems to have about
hundred elo points higher ?!?! But against FM (roughly 2300) rated Rodin Rebel Ex seems
to perform just as well)

[chrisw]

game nr 27

with the awesome Devin gambit
https://en.wikipedia.org/wiki/Devin_Gambit

[pgn]
[Event "Computer Chess Game"]
[Site "DESKTOP-G2238OJ"]
[Date "2025.09.14"]
[Round "13"]
[White "Rebel-Extreme-1.1"]
[Black "Rodin v8.00"]
[Result "1-0"]
[Annotator "EAS-Tool: 3 PawnUnits Sacrifice found in this"]
[ECO "A50"]
[PlyCount "45"]
[GameId "2222640425973024"]
[EventDate "2025.??.??"]
[TimeControl "240+2"]

{A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6)} 1. d4 Nf6 2. c4 e6 3. g4 $146 {Devin gambit} d5 4. Nf3 dxc4 5. g5 Ne4 {[#]} 6. Bg2 $146 ({Predecessor:} 6. Qc2 Bb4+ 7. Nc3 Bxc3+ (7... Nd6 $15) 8. bxc3 $14 Nd6 9. e4 (9. Bg2 $11) 9... b5 $15 {White must now prevent ...Bc8-b7.} 10. e5 $2 ({White should play} 10. Rg1 $15) 10... Nf5 11. Ba3 (11. Qe4 $142 Qd5 12. Qxd5 exd5 13. Rb1) 11... Bb7 $19 12. Bg2 h6 13. h4 Nd7 14. O-O-O {and d4-d5! should not be overlooked} Nb6 15. gxh6 Rxh6 16. Rhg1 {0-1 (35) Luong,P (2160)-Ismayil,M (2165) Swiss Queens Wed #20 FIDE Online Arena INT blitz 2024 (1)}) 6... Bb4+ (6... Nc6 {simplifies} 7. O-O Bd7 8. Nc3 Nxc3 9. bxc3 Bd6) 7. Nbd2 c3 8. bxc3 {The position is equal.} Bxc3 {[#]} 9. Qc2 $1 Bxa1 $2 (9... O-O $11 {and Black is okay.}) (9... Nc6 10. Rb1) 10. Nxe4 $18 Bxd4 11. Nxd4 Qxd4 {[#]} 12. Bb2 $1 Qb4+ 13. Bc3 {This pair of bishops is nice.} Qc4 {[#]} 14. Qb2 $1 Nd7 $2 (14... e5) 15. Bxg7 Rg8 16. O-O Qa4 17. Qc3 {White is clearly winning.} c5 18. Nf6+ (18. Nxc5 $2 Nxc5 (18... Qxa2 19. Nxd7 Bxd7 20. Bf6 $18) 19. Bh6 Nd7 $19) 18... Nxf6 19. Bxf6 c4 20. Qd2 Qd7 21. Qc2 Qb5 22. Qxh7 Rf8 {Black got outplayed after the opening. Weighted Error Value: White=0.00 (flawless) /Black=0.56} 23. Be4 {preparing the pawn advance g6 with a later pawn promotion 1-0}
[/pgn]

Seeing such games i'm a bit surprised Rebel Extr. isn't rated higher (P5 seems to have about
hundred elo points higher ?!?! But against FM (roughly 2300) rated Rodin Rebel Ex seems
to perform just as well)

Survivor bias in the game collections

[jefk]

CW 'survivor bias' well sure there's a bias because those games were selected
with the Pohl tool, finding (very) interesting wins (as i wrote earlier).

So ok, P5 is stronger, next batch of games will be mostly P5 again.

So now another awesome game, nr 28
with a Bird opening, transposing to a delayed Sturm gambit (declined) with the move 3.c4!
Rodin declines the gambit (normal move order(*) 1.f4 d5 2.c4!?)
https://www.chess.com/blog/LimeLime1/th ... rms-gambit
but then gets outplayed anyway:

[pgn]
[Event "Computer Chess Game"]
[Date "2025.09.15"]
[White "Rebel-Extreme-1.1"]
[Black "Rodin v8.00"]
[Result "1-0"]
[Annotator "EAS-Tool: 5+ PawnUnits Sacrifice"]
[ECO "A03"]
[PlyCount "69"]
[EventDate "2025.??.??"]
[TimeControl "240+2"]

{A03: Bird's Opening with 1...d5} 1. f4 d5 2. Nf3 g6 (2... c5 3. g3 Nc6 4. Bg2 g6 5. O-O Bg7 6. d3 Nf6 7. c3 O-O 8. Qe1 b6 9. e4 dxe4 {½-½ Burke,M (1893)-Jameson,D (2054) BCF-chT2 1011 (4NCL) England 2010 (8.67)}) 3. c4! Nf6 ({Relevant:} 3... c6 4. e3 Bg7 5. Nc3 Nf6 6. Be2 O-O 7. O-O a5 8. d4 dxc4 9. Bxc4 b5 10. Bd3 b4 {1-0 (32) Rapport,R (2764)-Tari,A (2672) FTX Road to Miami Prelim chess24.com INT 2022 (8)}) (3... d4 {3} 4. e4 {2} c5 {1} 5. d3 {1}) (3... dxc4 4. Nc3 {1} a6 {1} 5. e4 {1} b5 {1} 6. d3 {1} Bb7 {1} 7. dxc4 {2}) 4. d4 Bg7 5. cxd5 O-O 6. Nc3 Nxd5 7. e4 Nxc3 8. bxc3 {[#] Black is slightly better.} c5 $1 9. h3 Nc6 10. Be3 Qa5 11. Kf2 $5 {[#]} Rd8 $146 ({Predecessor:} 11... e6 12. Be2 Rd8 13. e5 Ne7 14. Bd2 Bd7 15. Qb3 Bc6 16. Rhd1 Rac8 17. c4 Qc7 18. dxc5 Nf5 19. Qa3 Bf8 {and ...b7-b6 should not be overlooked} 20. Ba5 $2 (20. Bb4 $15) 20... b6 $19 21. Bb4 (21. cxb6 $142 axb6 22. Bb4) 21... Rxd1 {0-1 (27) Sturt,R (2459)-Alekseenko,K (2679) Titled Tuesday intern op 06th Aug Early Chess.com INT blitz 2024 (5)}) (11... Qxc3 12. Rc1 Qa3 13. Rxc5) 12. d5 e6 13. d6 (13. c4 $5) 13... Bxc3 (13... Qxc3 14. Rc1 Qb2+ 15. Qe2 $15) 14. Rc1 Qxa2+ (14... Bd4 $11 {remains equal.}) 15. Be2 $16 Bb4 (15... Bd4 $16) 16. Rc2 $18 {White has strong compensation.} Qa5 17. e5 Bd7 18. h4 {This move loses the game for Black.} h5 $2 {[#]} (18... Nd4 $16) 19. g4 $1 hxg4 {[#]} 20. h5 $1 {h5xg6! would now be deadly.} gxf3 21. hxg6 Be1+ (21... fxg6 22. Bd3 $11) 22. Kg1 (22. Kxf3 Nxe5+ 23. fxe5 Bc6+ 24. Kf4 Bxh1 $19) 22... Nd4 (22... fxe2 23. Qxe2 $16) (22... fxg6 23. Bxf3 Nd4 24. Bxd4 Bg3 (24... cxd4 25. Qd3 $11) 25. Rxc5 Qb4) 23. gxf7+ (23. Bxf3 $142 {Intending g6xf7+ and mate.} Nf5 (23... fxg6 24. Bxd4 Bg3 25. Rxc5 $18) 24. Rch2 (24. Bxc5 $2 {too greedy.} fxg6 25. Bxb7 Bg3 $19) (24. gxf7+ Kxf7 25. Rh7+ Kf8 $16) 24... fxg6 (24... Nxe3 25. Rh8+ Kg7 26. R1h7+ Kxg6 27. Qd3+ f5 28. Bh5#) 25. Rh8+ Kf7 26. R8h7+ (26. R1h7+ Ng7 $17) 26... Kg8 27. Be4 (27. Rh8+ Kf7 $11)) 23... Kxf7 $2 {[#]} (23... Kg7 {was necessary.} 24. Bxd4 fxe2 25. Rxe2 Rh8) 24. Rh7+ $1 Kg8 25. Bxf3 Kxh7 26. Be4+ {White mates.} Kg8 27. Qg4+ Kf8 {[#]} 28. Bh7 $1 Nf3+ 29. Kg2 Qd2+ 30. Bxd2 Ng5 31. Qxg5 Bc6+ 32. Kh3 Rxd6 33. exd6 Bg2+ 34. Kxg2 Bxd2 {Weighted Error Value: White=0.08 (flawless) /Black=0.69} 35. Qg8# 1-0
[/pgn]

(*) for human chess players

in QGA style btw