#111
29.12.2025, 09:13
#112
29.12.2025, 09:16
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Re: Dedicated Chess Computer Tourney
MMIV Turbo 18MHz next....
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#113
29.12.2025, 09:33
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Re: Dedicated Chess Computer Tourney
A real tussle here. The MMIV put up a spirited defence and gains a little advantage over the Amsterdam. It is all going well until move 37. The resulting exchanges and Amsterdams placing of the Knight on d4 are just beyond MMIVs horizon.
Overall the MMIV played well but the Amsterdam still managed to get the point.
[Event "CB-Emu"]
[Site "?"] [Date "2025.12.28"] [Round "?"] [White "Mephisto Amsterdam Phoenix SE"] [Black "Mephisto MMIV Turbo 18MHz"] [Result "1-0"] [ECO "C43"] [WhiteElo "2000"] [BlackElo "2042"] [Annotator "Clive"] [PlyCount "167"] {[%evp 12,166,38,20,38,19,22,25,68,71,72,64,74,83,116,69,74,34,56,12,19,13,10,-8,-1,0,35,-25,0,-86,0,-142,-141,-123,-41,-250,-220,-226,-67,-110,-105,-103,-65,-66,0,0,0,0,0,0,0,0,0,0,7,0,93,44,58,23,40,22,25,8,329,319,316,314,328,330,321,326,322,320,349,340,506,491,507,506,493,481,472,437,499,496,521,499,545,543,536,510,561,564,545,521,635,627,677,604,8053,3981,1039,868,854,838,753,668,8053,8053,8033,8053,4835,891,8053,8053,19960,19962,19958,19966,19967,19968,19966,19961,19962,19964,19964,19961,1196,1142,19982,19983,19994,19986,29984,29985,29985,29986,29988,29989,29989,29990,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27998,27999,27999,27999,29999]} 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. O-O O-O 7. Nd2 {MMIV out of book.} (7. c4 $5 {[%cal Rc4d5]}) 7... f5 {Amsterdam out of book.} 8. c3 Nd7 9. Ndf3 Nb6 {White has an edge.} 10. Re1 Be6 11. Bf4 Qe7 12. Qc1 Nd7 13. a3 Ndf6 14. h3 Rae8 15. Qe3 {It is almost as if both machines are trying to see how many peices they can put in the centre!} a6 16. Rad1 c5 17. dxc5 Bxc5 18. Nd4 Nd7 {[%cal Bf6d7,Bd7b6,Bb6c4][%mdl 32]} 19. Nef3 {Inhibits g5.} ({Much worse is} 19. Bxe4 fxe4 20. Nxd7 Bxd7 $15) 19... Qf6 20. Bc2 Bf7 {Both programs are trying to gain some sort of advantage.} 21. Ba4 {[#]} b5 $1 22. Bb3 Nb6 {Threatens to win with ...Nc4.} 23. Bc7 $2 ({White should play} 23. Bg5 $15 Qd6 24. Bf4) 23... Nc4 $19 24. Bxc4 dxc4 (24... bxc4 $19 25. Qf4 Bh5) 25. Qf4 g5 26. Qh2 f4 27. Be5 Qg6 28. h4 $1 {[%cal Oh4h5]} g4 29. h5 $1 Qxh5 30. Rxe4 {[%cal Oh2f4]} gxf3 31. Nxf3 Qxh2+ 32. Nxh2 Bg6 33. Ree1 {[#] Ng4 is the strong threat.} Bd3 34. Nf3 Rf5 35. b4 (35. Bd4 $5 {[%cal Re1e8]} Rxe1+ 36. Rxe1 $11) 35... Bf8 36. Ra1 Rf7 37. a4 Bg7 $2 {[%mdl 8192]} (37... a5 $11) 38. Bxg7 $18 Rxe1+ 39. Rxe1 Kxg7 40. axb5 axb5 {[%mdl 4096] Endgame KRB-KRN} 41. Nd4 Rb7 42. f3 Rb6 43. Ne6+ Kg6 (43... Kf7 {was necessary.}) 44. Nxf4+ Kf5 45. Nxd3 cxd3 {KR-KR} 46. Rd1 Rd6 47. Kf2 Rd7 48. g3 ({Less strong is} 48. Ke3 Ke6 49. Rxd3 Rc7 $18) 48... d2 49. Ke3 {Prevents Rd3+.} Rc7 50. Kxd2 Rg7 51. Ke3 Re7+ 52. Kf2 Rc7 53. Rd5+ Ke6 54. Rxb5 Rxc3 55. Rh5 Rb3 56. b5 (56. g4 $142 Rxb4 57. Rxh7) 56... Rb2+ 57. Kg1 {Strongly threatening g4.} Kf6 58. g4 Kg6 59. Kf1 {Black must now prevent Ke1.} Kg7 60. Ke1 Kg6 61. Rf5 Kg7 62. Kd1 {And now Kc1 would win.} Kh6 63. Kc1 Rb4 64. f4 Kg6 65. Kc2 Kg7 66. Kc3 Rb1 67. Rg5+ Kh6 68. Rd5 Kg6 69. Rd6+ Kf7 70. b6 {aiming for Kc4.} Kg8 71. f5 Kf8 72. g5 Rc1+ 73. Kb2 {White mates.} Rc5 74. Rd3 Rxf5 75. b7 Rb5+ 76. Rb3 Rxb7 77. Rxb7 {KR-KP} Kg8 78. Kc3 Kh8 79. Kd4 Kg8 80. Ke5 h5 81. g6 Kf8 82. Kf6 Ke8 83. g7 h4 84. g8=Q# {Weighted Error Value: White=0.26 (precise) /Black=0.50} 1-0 MMIV has the White pieces next.
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#114
29.12.2025, 09:50
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AW: Re: Dedicated Chess Computer Tourney
 Zitat von Major Chaos
Like the first game the Mach III plays well and holds the Amsterdam for a while. But the Amsterdam keeps turning the screw and applying the pressure until the Mach III pops!
... [/PGN] Hello Clive, A typical game for the Mephisto Amsterdam's style of play. Best Egbert
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| Folgender Benutzer sagt Danke zu Egbert für den nützlichen Beitrag: | ||
Major Chaos (29.12.2025) | ||
#115
29.12.2025, 18:30
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Re: Dedicated Chess Computer Tourney
I think this was the toughest game the Amsterdam Phoenix has played so far. The MMIV had the advantage for quite some time but somehow lost its way to the Amsterdams Karpovian play.
[Event "CB-Emu"]
[Site "?"] [Date "2025.12.29"] [Round "?"] [White "Mephisto MMIV Turbo 18MHz"] [Black "Mephisto Amsterdam Phoenix SE"] [Result "0-1"] [ECO "C09"] [WhiteElo "2080"] [BlackElo "2000"] [Annotator "Clive"] [PlyCount "162"] {[%evp 18,161,41,17,23,-9,0,-3,48,42,97,100,119,72,72,78,64,66,69,67,138,140,148,95,149,127,154,166,175,140,184,184,175,111,191,17,12,16,13,0,0,-33,-36,-36,-41,-74,-75,-372,-257,-302,-30,-185,-59,-168,-169,-175,-173,-183,-182,-173,-174,-175,-175,-179,-177,-177,-178,-191,-191,-184,-157,-165,-128,-124,-143,-188,-177,-259,-191,-249,-246,-342,-248,-401,-324,-479,-476,-758,-466,-917,-920,-19957,-29967,-19969,-19974,-29964,-29970,-19977,-29969,-29971,-29969,-19976,-29975,-29975,-29976,-29974,-29977,-29977,-29978,-29977,-29978,-29978,-29980,-29980,-29981,-29982,-29984,-29985,-29986,-29986,-29987,-29987,-29987,-29990,-29990,-29990,-29991,-29995,-29994,-29994,-29992,-29993,-27999,-27999,-27999,-27999,-27999,-27999,-27999,-27999,-27999,-27999,-27999,-27999,-27999,-29999]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. O-O Nge7 {MMIV out of book.} 8. dxc5 Bxc5 9. Nb3 Bb6 10. Bg5 {Amsterdam out of book.} O-O 11. Nfd4 {And now Nxc6 would win.} f6 12. Be3 Nxd4 {The position is equal.} 13. Bxd4 Rf7 14. Re1 Bf5 15. Bd3 Bxd3 16. Qxd3 Bxd4 17. Nxd4 Qb6 18. b3 Rc8 19. Re6 Qb4 20. Nb5 {Against Qc3} Rc6 21. Re3 a6 22. Nd4 Rc8 23. Rae1 Qd6 24. Re6 Qc5 25. Qh3 {[%cal Oe6e7] Strongly threatening Rxe7!} Rc7 26. Nf5 ({Better is} 26. Qg4 $18) 26... Qxc2 $11 27. Nd6 ({But not} 27. Nxe7+ {[#]} Rcxe7 $1 28. Qe3 Rxe6 29. Qxe6 g6 $15) (27. Rxe7 $2 Rfxe7 28. Nxe7+ Rxe7 $1 $19 {[%mdl 512]}) 27... Rf8 28. Qg4 {[%mdl 1024] White has compensation.} h6 29. R6e2 Qc5 30. Re6 Nc6 {[%cal Be7c6,Bc6d4,Bd4c2][%mdl 32]} 31. Ne8 Rcf7 {...Ne5 is the strong threat.} 32. R6e2 {[%mdl 8192]} (32. h4 $17) 32... Kh8 33. h3 a5 $2 (33... Ne5 $19 34. Qe6 Nd3) 34. Kh2 $2 (34. Re6 $11 {and White has nothing to worry.}) 34... b6 35. f4 Nd4 36. Rd2 Nc2 37. Re6 Ne3 38. Qf3 d4 {White must now prevent ...Qc8.} 39. Nd6 {Inhibits Qc8.} Rd7 40. Nc4 Nxc4 41. bxc4 Qxc4 42. Rxb6 d3 43. Rc6 Qd4 44. Re6 {Against Re8} Rc8 {[%cal Bf8c8,Bc8c3,Bc3c4,Bc4e4,Be4e1][%mdl 32]} 45. Re3 {[%cal Re3d3]} Rc3 46. Re8+ Kh7 47. Qg3 Qd5 ({Worse is} 47... Rc1 48. Re3 $17) 48. Qe3 Rc4 49. Rb8 Re4 50. Qf3 (50. Qg3 {is the only way for White.}) 50... a4 {[%cal Oe4e2] aiming for ...Re2!} 51. Rb5 (51. Qg3 {is a better defense.}) 51... Qd4 $19 ({Inferior is} 51... Qxb5 52. Qxe4+ f5 53. Qe6 $17) 52. g3 (52. Rb1 $142 Rxf4 53. Qg3) 52... Re1 {[%csl Ge1][%cal Rd4g1]} 53. Qg2 {Against Qg1+} (53. h4 $142) 53... Qc3 {[%cal Oc3d2] ( -> ...Qxd2!)} 54. Rb8 {[#]} Qxd2 $3 {[%mdl 512]} 55. Qxd2 Re2+ 56. Qxe2 dxe2 {KR-KR} 57. Re8 Rd2 58. Kg1 Rxa2 59. Kf2 a3 60. Re3 {Black mates.} e1=Q+ 61. Kxe1 Ra1+ 62. Ke2 a2 63. Ra3 Rh1 64. h4 a1=Q 65. Rxa1 Rxa1 {KR-K3P} 66. Ke3 Kg6 67. g4 f5 68. h5+ Kf6 69. gxf5 Kxf5 {KR-KPP} 70. Kf3 Ra3+ 71. Ke2 Kxf4 {KR-KP} 72. Ke1 Ra2 73. Kd1 Kg5 {The Amsterdam fails to spot the mate in 6.} 74. Ke1 Kxh5 {KR-K} 75. Kf1 g5 76. Ke1 g4 77. Kf1 Kh4 78. Kg1 g3 79. Kf1 Kh3 80. Ke1 g2 81. Kd1 g1=Q# {Weighted Error Value: White=0.80/Black=0.33} 0-1
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#116
29.12.2025, 18:42
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Re: Dedicated Chess Computer Tourney
The Mach IV tries hard to gain an advantage, but in the end the Amsterdam is too strong.
[Event "?"]
[Site "?"] [Date "2025.12.29"] [Round "?"] [White "Mephisto Amsterdam Phoenix SE"] [Black "Fidelity Designer Mach IV"] [Result "1-0"] [ECO "B22"] [WhiteElo "2000"] [BlackElo "2071"] [Annotator "Clive"] [PlyCount "91"] {[%evp 10,90,20,14,15,16,12,12,20,-1,16,13,54,48,55,51,120,121,116,51,113,107,112,122,233,125,266,167,355,351,348,335,328,118,121,67,65,72,61,53,150,73,71,78,366,367,587,586,588,584,645,630,636,626,736,729,776,764,995,990,957,924,1305,29967,29967,1146,29970,29971,29992,29993,29993,29994,29994,29995,29995,29996,29996,29997,29997,29998,29998,29999,29999]} 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nc6 {Amsterdam out of book.} 6. Be3 {Mach IV out of book.} cxd4 7. cxd4 Bb4+ 8. Nc3 Qa5 {The position is equal.} 9. Qc2 Nf6 10. Bc4 Nd5 {[%cal Rd5c3]} 11. Bd2 O-O 12. O-O Nb6 13. Bd3 ({Don't play} 13. Ng5 $6 g6 14. Bb3 Rd8 $11) 13... Qh5 14. h3 {a3 is the strong threat.} Rd8 15. a3 Be7 16. Ne2 {aiming for b4.} Bd6 17. Rac1 Nd5 18. Rfe1 Bd7 $2 (18... Nf6 19. Bg5 h6 20. Bxf6 gxf6) 19. Ng3 $18 Bxg3 20. fxg3 Nf6 21. Qb1 $2 (21. g4 $18 {and White stays clearly on top.} Qd5 22. g5) 21... Qd5 $16 22. Rc5 Qd6 23. Bf4 Qe7 {[%cal Oc6d4] [#] Threatens to win with ...Nxd4!} 24. Qc2 {[%cal Od4d5] Strongly threatening d5!} Rdc8 {[%cal Oc6d4]} 25. b4 {[%cal Od4d5] And now d5! would win.} b6 26. Rc4 $36 {[%cal Od4d5][%mdl 2048] Black must now prevent d5! White is really pushing.} g6 $2 {[%mdl 8192]} (26... h6 $16 {was called for.}) 27. Bg5 $18 Nd8 (27... h6 $142) 28. Ne5 Rxc4 29. Qxc4 Rc8 30. Bxf6 Qd6 31. Qa6 Qxd4+ 32. Kh2 Nc6 33. Rc1 Re8 34. Rxc6 Bxc6 35. Qxa7 {[%csl Ge5][%cal Ra7f7]} Bd7 36. Nxd7 Qd6 37. Bb5 {Threatening mate with Be5.} e5 38. Bc4 {White mates.} b5 {[#]} 39. Qe3 $1 Re6 (39... Qxf6 40. Nxf6+) 40. Bxe6 fxe6 41. Qa7 e4 42. Bg5 e5 43. Nf6+ Qxf6 44. Bxf6 {[%csl Gf6][%cal Ra7g7]} Kf8 45. Qe7+ Kg8 46. Qg7# {Weighted Error Value: White=0.20 (precise) /Black=0.77} 1-0
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#117
29.12.2025, 18:50
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Re: Dedicated Chess Computer Tourney
This time the Mach IV is well ahead but again makes a couple of poor moves which the Amsterdam takes full advantage of.
[Event "CB-Emu"] [Site "?"] [Date "2025.12.29"] [Round "?"] [White "Fidelity Designer Mach IV"] [Black "Mephisto Amsterdam Phoenix SE"] [Result "0-1"] [ECO "D16"] [WhiteElo "2071"] [BlackElo "2000"] [Annotator "Clive"] [PlyCount "146"] {[%evp 15,145,78,82,90,91,82,124,107,110,99,150,138,203,127,162,122,210,143,197,195,182,141,161,161,206,111,258,214,357,154,210,81,82,26,43,-20,55,-27,-33,-80,-77,-91,-75,-82,16,20,20,-383,-379,-381,-298,-352,-275,-280,-205,-227,0,-125,-37,-99,-91,-190,-164,-211,-224,-197,-62,-288,-184,-321,-313,-311,-323,-370,-374,-412,-400,-433,-435,-540,-533,-552,-549,-546,-550,-549,-530,-540,-527,-563,-560,-574,-566,-580,-588,-578,-579,-573,-575,-578,-575,-589,-587,-586,-581,-585,-583,-585,-556,-579,-559,-663,-663,-662,-651,-791,-784,-29972,-1407,-29991,-29992,-29992,-29991,-29995,-29996,-29996,-29997,-29997,-29998,-29998,-29999,-29999]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 6. e4 Bg4 {Mach III out of book.} 7. Bxc4 e6 8. Be3 {Amsterdam out of book.} Bb4 9. Qd3 Bxf3 10. gxf3 Nc7 11. Rg1 {White is better.} O-O 12. O-O-O Nce8 13. Kb1 Be7 14. Rg2 a6 15. Ba2 Nd7 16. Rdg1 Ne5 17. Qe2 Ng6 18. Qc2 Rc8 19. f4 Qd7 20. f3 Nd6 21. a5 Bd8 22. Qa4 (22. Na4 $18) 22... Qc7 23. Qb4 {[%cal Oh2h4]} Qxa5 24. Qb3 (24. Qxd6 $6 Be7 25. Qd7 Rc7 26. Qxc7 Qxc7 $11) 24... Qh5 25. Qd1 {[%cal Oh2h4][%mdl 1024] White has compensation.} Be7 26. Na4 {[%cal Bc3a4,Ba4b6,Bb6c4][%mdl 32]} (26. h4 $5) 26... Nb5 27. Nb6 Rcd8 28. Rd2 Bd6 29. Rg4 Qh3 30. Nc4 Bc7 {[%cal Oc6c5]} 31. Rdg2 $2 {[%mdl 8192] [#]} (31. Ne5 $11) 31... Nxd4 $1 $19 32. R4g3 (32. Bxd4 c5 33. Ne5 (33. Rxg6 $2 hxg6 34. Qe2 Rxd4 $19) 33... Rxd4 $19) 32... Qh4 {[%cal Oc7f4]} 33. Rg4 Qf6 34. e5 Qf5+ 35. Ka1 {[#]} Nb5 $2 (35... Qh5 $1 $19 {Hoping for ...Nf5.} 36. Bxd4 (36. Bb1 c5) 36... c5) 36. Qe1 Qh5 37. Bc5 Rfe8 38. Qf1 Rd7 39. Nb6 Bxb6 40. Bxb6 Qh6 {White must now prevent ...Nd4.} 41. Kb1 $2 (41. Bb1 $15) 41... Nc7 ({Weaker is} 41... Nxf4 42. Be3 g6 43. Bxf4 $16 (43. Rxf4 Red8 $11)) 42. Qg1 Nd5 43. Bxd5 Rxd5 ({Not} 43... cxd5 $2 44. Qd4 $19) 44. Qc1 Re7 45. Be3 {[%cal Of4f5]} Qh3 46. R4g3 Qf5+ 47. Rc2 Red7 {Threatens to win with ...Rd1.} 48. Rg5 Qh3 49. Rg3 Qh5 50. Rg1 Qxf3 {...Rd1 is the strong threat.} 51. Bd2 Qh5 52. Qe1 {[#]} Nxf4 $1 53. Qg3 {[%csl Gg1][%cal Rg3g7]} (53. Qf2 Nh3) 53... Ng6 54. Bc3 Rd1+ 55. Rc1 Qf5+ 56. Ka2 Rxc1 57. Rxc1 Rd3 58. Qg1 Qf4 59. Kb1 Qe4 60. Ka1 Qa4+ 61. Kb1 Qb5 62. Qa7 Rd8 63. Re1 c5 64. Rc1 h6 65. h3 Nf4 {( -> ...Ne2)} 66. Re1 Ne2 67. Ba5 Qxa5 {Black mates.} 68. Rxe2 {KQR-KQR} Qb5 69. Re1 Rd2 {[%csl Gd2][%cal Rb5b2]} 70. Qb8+ Kh7 {[%csl Gd2][%cal Rb5b2]} 71. Qxb7 Qxb7 {[%csl Gd2][%cal Rb7b2]} 72. b3 Qxb3+ 73. Ka1 Ra2# {Weighted Error Value: White=0.63/Black=0.39} 0-1 Next up is the Mephisto Montreal. I will try and find some matchsticks so I can keep my eyes open! 
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| Folgende 3 Benutzer sagen Danke zu Major Chaos für den nützlichen Beitrag: | ||
#118
29.12.2025, 18:52
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AW: Dedicated Chess Computer Tourney
Hello Clive,
Yes, Mephisto Amsterdam was already in a very bad position, but despite its 18 MHz, the MM IV Turbo still lacks a decent punch. In the end, Amsterdam prevails again in the style of Karpov, albeit at a much lower level , of course. Both opponents lack a little tactical strength. Nevertheless, it's a very interesting comparison.Best regards, Egbert
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| Folgender Benutzer sagt Danke zu Egbert für den nützlichen Beitrag: | ||
Major Chaos (29.12.2025) | ||
#119
29.12.2025, 19:00
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AW: Re: Dedicated Chess Computer Tourney
Zitat von Major Chaos
The Mach IV tries hard to gain an advantage, but in the end the Amsterdam is too strong.
... [/PGN] Best Egbert
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#120
29.12.2025, 19:10
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Re: AW: Re: Dedicated Chess Computer Tourney
[QUOTE=Egbert;136931]Mephisto Amsterdam seems to hypnotise his opponents. In this case, the Fidelity Designer Mach IV was his weapon of choice. /QUOTE]
LOL. It is like a black mamba v a mouse! Best Clive
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| Folgender Benutzer sagt Danke zu Major Chaos für den nützlichen Beitrag: | ||
Egbert (29.12.2025) | ||
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Linear-Darstellung
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