Mephisto Explorer - Stefan 0 - 1
-------------------------------
The Explorer made a bad move (24 Rd3 ??) but black for sure had nothing to fear and could
still go for the win in a comfortable position. What I was surprised about in the game was that
the Explorer assessed 24. Rd3 as +0.7 but when I responded with Bb5
it took him 2 of his 3 minutes
to realise the move was not +0.7 but -1.4 !!! The same goes for my Rook sacrifice (35 ...Rxe4) in the endgame,
a move the Explorer did not see at all , from an even score before my move he realised only later that his position was
-7,2 (or worse). I entered the same position after removing the batteries on the Explorer just as I entered the game for the GK2000, also here, 24 Rd3 was played in both cases.
Ok we have to accept this, as much as I have to face my own bad moves now & then , like in my game against the
Turbo Advanced trainer.
Sometimes the Explorers games please me because he has good strategical ideas in many positions . Other programs start playing planless moves at least when the minimax calculation of the position score stays the same (note minimax calculation is a zero sum calculation where the best move from white is met by the the best move from black). Strategical plans is the oldies worst part, as there is far too less space to program complex concepts (like central occupation, pawnstorms and piece sacrifices)
[Event "U1950"]
[Round "8"]
[White "Mephisto Explorer"]
[Black "Stefan"]
[Result "0-1"]
[PlyCount "75"]
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 {The Taimanov, my type of
Sicilian Play} 6. Ndb5 {The Explorer already runs out of opening book options.
This variation is not in particular good and allows black to equalize rapidly.}
Qb8 (6... Qb6 $4 7. Bf4) (6... Qe5 7. f4 $16) 7. Bc4 {This move also will
sooner or later come at a loss of tempo.} a6 8. Nd4 b5 9. Bb3 {Aimed against
blacks potential d5} Nf6 {Threatens b4 & Nxe4} 10. Nxc6 dxc6 11. Bg5 Be7 12.
Qe2 {Compared to Qf3, this move prepares for the e5 advance.} (12. Qf3 a5 13.
a3 b4 14. axb4 axb4 15. Rxa8 Qxa8 16. Na4 $15) 12... O-O $6 {The move is
dubious, I overlooked the Bishop recapture in my calculations... but I managed
well with the bishop pair afterwards. So yes it might have been bad , but no
its not a real error neither.} (12... c5 13. a3 c4 14. Ba2 Bb7 $11) 13. e5 Nd5
14. Bxd5 $1 (14. Nxd5 Bxg5 15. h4 Bd8 $19) (14. Bxe7 Nxe7 15. O-O $11) 14...
Bxg5 15. Bxc6 Ra7 $14 {Bf4 is a constant threat to regain the pawn} 16. O-O {
This move allows Re1 ! but also is quite handy for playing f4 !} Rc7 17. Be4 (
17. Ne4 Bf4 18. Nf6+ gxf6 19. Qg4+ Bg5 20. exf6 h6 21. h4 $17) 17... b4 $1 (
17... Rc5 18. f4 $16) (17... Bf4 18. Bxh7+ (18. g3 Bxe5 19. Bxh7+ Kxh7 20. Qxe5
$14) 18... Kxh7 19. Qe4+ Kg8 20. Qxf4 Rc4 $18) 18. Nd1 Rd8 19. f4 Be7 (19...
Bh6 20. Ne3 (20. Qh5 Bb7 $1) 20... Rcd7 $16) 20. Ne3 (20. Qh5 h6 21. g4 $6 Bb7
$15) 20... Qb6 (20... Bb7 21. Bxb7 Qxb7 22. Rad1 (22. f5 Qe4 $15) 22... Rcd7
23. Rxd7 Rxd7 $11) 21. Rad1 (21. Rad1) (21. f5 exf5 (21... Qd4 $1 $19 22. Bd3 (
22. f6 $2 Bc5 $19) 22... Bc5 23. Rae1 $17) 22. Bxf5 Bc5 23. Rae1 Bxf5 24. Rxf5
Bxe3+ 25. Qxe3 Qxe3+ 26. Rxe3 Rxc2 $17) 21... Rcd7 22. Rxd7 Bxd7 23. Rd1 Bc5
24. Rd3 $4 {I couldn't believe my eyes, I even replaced the batteries and took
the moves back, the Explorer kept on playing this move.} (24. Kf2 Bb5 25. Bd3
$11) 24... Bb5 $19 25. Kf2 (25. Qg4) (25. Rxd8+ $2 Qxd8 26. Bd3 Bxd3 27. cxd3
Qd4 28. Kf2 Qxf4+ 29. Qf3 Bxe3+ 30. Ke2 $19) 25... Bxd3 26. cxd3 (26. Bxd3 Bd4
27. c3 bxc3 28. bxc3 Bxc3 $19) 26... Rc8 27. Kf3 Bxe3 28. Qxe3 Qxe3+ 29. Kxe3
Rc2 30. a3 Rxb2 31. axb4 Rxb4 32. f5 a5 33. fxe6 fxe6 34. d4 a4 35. d5 Rxe4+
36. Kxe4 a3 37. d6 Kf7 38. Kd3
Europa - Constellation 2 Mhz 1 - 0
---------------------------------
The Conny played once again in Superconny style and sacrificed its (K)night on f2,
accepting the Knight was poison, hereby the Conny won the quality,
but the question was, is the Knight on h1 able to get out of its trapped position ?
The answer was not clear, and it really took the Europa some time to capitalise on this trapped
Knight. We then ended up in an endgame where the Europa had 2 bishops & the Conny a rook.
nice game for replaying in all phases of the game !
[Event "P107 U1950 09-12/2010"]
[Round "8"]
[White "Mephisto, Europa"]
[Black "Constellation, 7."]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "1709"]
[BlackElo "1692"]
[PlyCount "107"]
1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. e3 Bb4 5. Qc2
O-O 6. d3 (6. Nd5 Re8 7. Qf5 d6 8. Nxf6+ Qxf6 9. Qxf6 gxf6 10. a3 Bc5 11. b4
Bb6 12. Bb2 $15) 6... d5 $5 {Conny played this move but it was clear that it
was based on his strong feeling of centreplay} 7. cxd5 Qxd5 {Better was Nxd5}
8. Bd2 Qc5 9. a3 Bxc3 10. Bxc3 Re8 11. Be2 Bf5 12. Rc1 e4 $5 $11 {It is clear
that black has free play and white must ******* with its strong harvest} 13.
dxe4 Nxe4 14. Nh4 Nxf2 {I can't say its excellent (!) nor say its bad (?) but
its a typical move you'll see with the Dave Kittinger machines... also very
SuperConny alike... lets face it it opens the game, and in particular facing
humans this is not a bad idea at all !} 15. Nxf5 (15. Kxf2 $4 Qxe3+ 16. Ke1
Bxc2 17. Rxc2) (15. Qxf5 {Probably the best and refutation of the sacrifice}
Qxf5 (15... Qxe3 16. O-O (16. Qxf2 $4 Qxc1#) 16... Ne4+ 17. Kh1 Nd6 $16) 16.
Nxf5 Nxh1 17. Bf3 $14) 15... Nxh1 {Now the only remaining question is , wil
the Horse on h1 be able to evacuate in time ?} 16. Bxg7 Qxc2 17. Rxc2 Ne7 18.
Nxe7+ Rxe7 19. Bd4 b6 {The idea is that whenever the King goes down the first
line, c5 comes, e3 falls and pressure will be put on the e-file} 20. Rc6 (20.
b4 Rae8 $16) 20... Kf8 (20... Re6 21. Rxc7 Rh6 22. Be5 Re8 23. Bf4 $18 {
and black didn't succeed in freeing up the N on h1}) 21. Rh6 Kg8 22. Rc6 Kf8
23. Rh6 f5 $2 {The conny being in kind of bad position refuses to play 3 fold
repetition of moves. Stuborn as he is ! Lets see how he handles all this
lateron.} (23... c5 $4 24. Bf6 Re6 25. Rxh7 Rxf6 26. Rh8+ Kg7 27. Rxa8 $16) 24.
Rh5 f4 25. Rf5+ Rf7 26. Rxf7+ Kxf7 27. Bc4+ Kg6 28. exf4 c5 29. Be5 Rd8 $18 {
Black faces Be2, g3 & Bf3 what is going to stop the Europa from doing ?} 30. g3
h5 31. Be2 c4 (31... h4 {Too late for help....} 32. gxh4 (32. Bf3 $2 Nxg3 33.
hxg3 hxg3 $11) 32... Kf5 33. Bf3 Rg8 34. Kf1 $18) 32. Bf3 Nxg3 33. hxg3 Rd7 34.
Bc6 {With the idea Bb5and approaching with the King} Rd8 35. Bb5 Rc8 36. Ba6
Rc6 37. Kf2 (37. Kd2 Kf5 38. Kc3 Rc5 39. Kd4 {Loosing the c-pawn}) 37... Kh7
38. Kf3 Kg6 39. g4 $5 {At first I thought the Europa was centralising his king,
but no, he played the king to move g4 all along. However the idea is not so
bad as it seems. As the g pawn was subject to an rook attack and/or black King
approachso get rid of it and push the free f-pawn thereafter to spread the
battlefield a bit.} hxg4+ 40. Kxg4 Kf7 41. Kf5 Rc5 42. Ke4 c3 {
The hope for this pawn is lost.} 43. Bxc3 Rh5 44. f5 Rh4+ 45. Ke5 Ke7 46. f6+
Kf8 47. Ke6 Rf4 48. Be5 Re4 49. Bc4 a5 50. f7 Re3 51. b3 {The Europa surely
doesn't know whats going on here.... he has no plan in his near futur to
promote the pawn to whatever expense. He might need to drop his score to win
much easier.. will he go for the underneath listed variation ?} (51. Kd6 Rf3
52. Kd7 b5 53. Bd6+ Kg7 54. f8=Q+ Rxf8 55. Bxf8+ Kxf8 56. Bxb5 {1-0}) 51... b5
$2 (51... Re1 $4 52. Kf6 {and now Rf1+ can't be played)}) 52. Bxb5 Re1 53. Bc4
Re3 54. b4 1-0
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1 Stefan 5,5 / 8
2. Mephisto Super Mondial B * & Saitek Turbo Advanced Trainer 5 / 7 *
4. Mephisto Explorer 4 / 8
5. Mephisto Europa 3 / 8
6. Constellation 0,5 / 8
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* One game Less
TPR Stefan = 2x1692+2x1974+1x1876+2x1897+1x1709= 1839 durchschnitt
5,5/8 = 68,75% (-50) = 18,75 * 8 = +150 Also TPR = 1839+150 = 1989 ELO
TPR Mephisto Explorer = 2x1899+2x1876+1x1897+1x1709+2x1692= 1818 durchschnitt
4/8 = 50% (-50) = 0 * 8 = +0 Also TPR = 1818 + 0 = 1818 ELO
TPR Mephisto Europa = 1899 + 2x1876 + 2x 1897 + 1974 + 2x 1692 = 1850 durchschnitt
3 / 8 = 37,5% - 50% = - 12,5% x 8 = -100 Also TPR = 1850 - 100 = 1750 ELO
TPR Conny = 2x1899 + 2x1709 + 1876 + 1897 + 2x 1974 = 1867 durchschnitt
0.5 / 8 = 6,25 - 50 = -43,75 * 8 = -350 Also 1867 - 350 = 1517 ELO