november 8 2016

The faithful listeners were present to hear the good word of the Master.

There were few technical incidents, except for the noise of the pipes and a crash of the Master's computer.

The end was cut off abruptly with the time limit of the conference depriving the listeners of the usual greetings and thanks.

Below is the report.


Master's words


From an author considered "very serious" I was reading at the end of 2015: in a pawn endgame where a bKg4 has to capture doubled wPs on h4 & h5 to free a bPg7 (while a wPa runs to Queen), he writes ...Kxh4 then ...Kxh5 and gives the win to White (in the end Qh8+ then Qg8+ winning the Qg1). Whereas ...Kxh5 first, then ...Kxh4 draws, since Qh8+ Kg3! Qg7+ Kh2! But when I say that all these authors, whatever their nationality (some writing -- that is probably better -- only articles) do not do a good job, sometimes even are clowns, some come to grumble, without ever answering on the substance, that I probably have, how do they say, ah yes! an oversized ego (sic) to dare to hold such a speech. They have picked up this expression I don't know where, and bring it out at every opportunity.

Kaminer

It is a strange phenomenon. At our time when the questioning of civilization principles goes far beyond the reasonable, we would have to accept the establishment of new sacred cows. To limit ourselves to the world of chess, certain players, authors, referees, journalists, federal officials... would become untouchable, the criticism of all these people unwelcome, not to say forbidden. But, as Vitaly Halberstadt said, "here, my thoughts capture such a heretical turn that I shudder and put down my pen".

Two mats and a pat as an aperitif. Then a study given recently in a solutions competition, but human: a rarity.

One can be ranked 2600 while ignoring an essential principle of the Bishop vs Pawn struggle: always attack the opponent's pawns to weaken them. And when I say "ignore", it is not "forget" in the fire of a game, but well and truly in the analysis. To be compared with Knight against pawns, examined in the course of last June 7, where the same principle applies.

Geller

A missed opportunity in an old attacking game between two... attackers. The saving move was made by a casual spectator!

A month ago, the "game of the day" was reduced to an extract, including a collection of analyses. Today, the game is certainly complete, but it is still the analysis that interests us. On several levels: that of the winner (who was to become world champion 13 years later), that of the best German player of the late 20th century, and finally the refinements of the cybernetic monster. One could say that the result was not very brilliant for the so-called "future world champion". However, he was largely beaten, 70 years later.

Guess by whom.

Botvinnik chekhover

Among the numerous nice moves of this long analysis, one will appreciate that the Black Bishop b4 (in focal position) inspires at the same time two sacrifices, that of the White Bishop in a3 and, in echo, that of the White Rook in e1! A precision: the Black conductor is the editor of the "Knight's endgame" section of the opus signed by Averbach.

HassbergOreshin

The fairy tunes strive to show a wide variety of genres and pieces. Training: a few 2# gleaned by loitering once again on Marjan's site, two classical 3#, a curious synthesis of two 5# themes, a little marvel in 6 moves from "King Artur", who brings out 4 model mates from his hat. helpmate 2-moves: Forsberg-type Alsatian quadruplets (we change the nature of the piece on a given square) like the Köko fairy triplets, two 3# helpmates with two solutions, a funny long helpmate. Finally a nice selfmate to look for.

This class was originally scheduled to take place in a week. Being by nature rather anti-crastinator, I don't regret its advancement. On the other hand, I'll have a hard time giving a date for the next one. In a month, two, three?

Good luck though

PGN Reader

Master's diagrams

[Event "?"] [Site "?"] [Date "1925.??.??"] [Round "?"] [White "Botvinnik, M & Kaminer S"] [Black "+4043.21a1h5"] [Result "1-0"] [SetUp "1"] [FEN "8/6q1/6b1/4p2k/8/3n1P2/Q2B2P1/K7 w - - 0 1"] [PlyCount "9"] [EventDate "1925.??.??"] [Source "ChessBase"] [SourceDate "2000.10.30"] {A mate in 5 moves? You don't think so ?} 1. g4+ $8 Kh4 2. Bh6 $3 {[#]Attack the Queen and... the King.} Qxh6 (2... e4+ 3. Bxg7 {: obviously, no mate in 5 in this case !}) 3. Qh2+ $8 Kg5 4. Qd2+ $8 Nf4 (4... Kf6 5. Qxh6) 5. Qd8# $1 { Model mat .} 1-0 [Event "?"] [Site "?"] [Date "1985.??.??"] [Round "?"] [White "Grechishinikov, N."] [Black "+4001.01f1f3"] [Result "1-0"] [SetUp "1"] [FEN "8/8/5NQ1/8/5q2/5k1p/8/5K2 w - - 0 1"] [PlyCount "15"] [EventDate "1985.??.??"] [SourceDate "2000.07.25"] {Mat in 8 or Queen's win.} 1. Qd3+ $8 Qe3 2. Qf5+ $8 {Foreground} (2. Qd1+ $2 {( plan)} Kg3 $8 3. Qg4+ (3. Nh5+ Kh4 $8 $11) 3... Kh2 4. Qe4 Qc1+ $1 ( 4... Qxe4 $2 5. Nxe4 Kh1 6. Kf2 Kh2 7. Nd2 Kh1 8. Nf1 h2 9. Ng3#) 5. Ke2 Qb2+) 2... Qf4 (2... Kg3 3. Qg6+ $8 Kh2 (3... Kf4 4. Nd5+ $1) (3... Kf3 4. Qg4#) 4. Ng4+ $8) 3. Qxh3+ $8 Qg3 4. Qf5+ $8 Qf4 (4... Ke3 5. Qc5+ $1 (5. Qe6+ $1 Kd4 6. Qd5+) 5... Kf3 (5... Kd3 6. Qa3+ $8) 6. Qc3+ $1 Kf4 7. Nh5+) 5. Qd3+ $8 Qe3 6. Qd1+ $3 {[#]Now that h3 pawn disapeared.} Kg3 7. Qg4+ $8 Kh2 8. Qg2# 1-0 [Event "?"] [Site "?"] [Date "1956.??.??"] [Round "?"] [White "Bent, M."] [Black "=0373.20h8a7"] [Result "1/2-1/2"] [SetUp "1"] [FEN "7K/k5Bn/6PP/7b/8/4r3/7b/8 w - - 0 1"] [PlyCount "14"] [EventDate "1956.??.??"] [SourceDate "2000.07.25"] {With 3 figures less, can we draw ?} 1. Bd4+ $8 (1. Bb2 $2 Bxg6 $19) 1... Kb7 2. g7 $8 (2. Bxe3 $2 Bxg6 $8 $19) (2. gxh7 $2 Re4 $1 3. Kg8 (3. Bc3 Rg4 $1 4. Bb2 Bf4) 3... Rxd4 $8 4. h8=Q Rd8+ $8 5. Kh7 Bg6+) (2. Kxh7 $2 Re6 $1 3. g7 Bf7 $8 $19) 2... Re8+ (2... Bf7 3. Bxe3 Nf6 (3... Be5 $2 4. Kxh7) 4. Bd4 Ng8 5. h7 $11) (2... Nf6 3. Bxe3 $11) (2... Rg3 3. g8=Q {text}) 3. g8=Q $8 Rxg8+ 4. Kxg8 $8 Bg6 {Black has neutralised the pawn and is threatening ...Bf4, followed by the approach of his king.} (4... Ng5 5. h7 Bf7+ 6. Kg7 $11) 5. Be5 $3 {[#]} Bg1 (5... Bxe5 $1 {stalemate}) (5... Bf7+ 6. Kxh7 $8 Bxe5 $1 {stalemate}) 6. Bd4 $3 {[#]} Bf7+ ( 6... Bxd4 {stalemate}) 7. Kxh7 $8 (7. Kxf7 $2 Bxd4 $8 8. Kg6 Nf6 $1 9. h7 Nd5 10. Kf7 Kc6 11. Kg8 Ne7+ $1 12. Kf7 Kd7 $19) 7... Bxd4 $1 {Stalemate.} 1/2-1/2 [Event "?"] [Site "?"] [Date "2016.??.??"] [Round "?"] [White "Minski, M."] [Black "0041.11"] [Result "1/2-1/2"] [SetUp "1"] [FEN "6k1/4KN2/8/2BP4/8/8/p7/b7 w - - 0 1"] [PlyCount "12"] [EventDate "2016.??.??"] [SourceDate "2000.07.25"] 1. d6 $8 (1. Nh6+ $2 Kh7 $1 2. Nf5 (2. d6 Be5) 2... Be5 $19) 1... Kg7 (1... Bf6+ 2. Kxf6 $8 a1=Q+ 3. Ne5 $8) 2. Ne5 $3 {[#]} (2. d7 $2 Bf6+ $8 3. Ke8 a1=Q $8 4. d8=Q Bxd8 $8 5. Nxd8 Kf6 (5... Qe5+ 6. Kd7 Qd5+ 7. Bd6 Kf6 $19) 6. Be7+ Ke5 7. Nc6+ Kd5 8. Nd8 Qg7 9. Kd7 Qg8 $19) 2... Bxe5 3. d7 $8 Bf6+ (3... a1=Q 4. d8=Q $8 Bf6+ 5. Ke8 $8 {idem}) 4. Ke8 $8 a1=Q 5. d8=Q $8 Bxd8 (5... Qe5+ 6. Be7 $8) 6. Bd4+ $3 {[#]} Qxd4 $1 {Stalemat. Presented at the Swiss Championship 2016.} 1/2-1/2 [Event "?"] [Site "?"] [Date "2002.??.??"] [Round "?"] [White "Neverov, Gyimesi"] [Black "0040.45"] [Result "1/2-1/2"] [SetUp "1"] [FEN "6k1/p2b2pp/1p3p2/8/7P/P4P2/5BP1/6K1 w - - 0 30"] [PlyCount "63"] [EventDate "2002.??.??"] [SourceDate "2000.07.25"] {85/F4} 30. Kf1 Kf7 31. Ke2 Ke6 32. g4 Kd5 33. h5 Kc4 34. Bg3 Kb3 35. Bd6 f5 $1 36. gxf5 (36. g5 f4 37. Bf8 Be8 38. h6 gxh6 39. gxh6 Bc6 40. Bd6 a5 41. Be7 $6 (41. Bxf4 Kxa3 42. Bc7 $1 {(attacks pawns)} a4 {(..b5 Bxa5 followed by Kd2-c1 as below)} 43. Bxb6 Kb3 44. f4 a3 45. f5 a2 46. Bd4 Kc2 47. f6 Bd5 48. Ke3 Bg8 49. Ke4 {(it is Blacks who must be vigilant about the threat Ke7 and f7)} Bb3 {(...Kb1? lost but also possible ...Kb3 Ke5 ...Kc4! Ba1 ...Kc5!)} 50. Ke5 Kd3 $8 51. Ba1 Ke3 $8 52. Kd6 Kf4 $8 53. Ke7 Kg5 $8 54. f7 Bxf7 55. Kxf7 Kxh6 56. Kf6 Kh5 57. Kf5 $11) 41... b5 42. Bd6 b4 43. axb4 $8 axb4 44. Bxf4 (44. Kd2 $1 Bxf3 45. Kc1 $8) 44... Kc2 45. Be5 $3 {[#](not considered by ZG)} (45. Ke3 $2 {(decisive waste of time)} b3 $8 46. Be5 b2 $8 47. Bxb2 Kxb2 48. f4 Kc3 $8 $19 {ZG}) 45... b3 46. f4 $8 Be4 (46... b2 47. Bxb2 $8 Kxb2 48. Kd3 $8) 47. Ke3 Bf5 48. Ba1 Kb1 (48... b2 49. Bxb2 $8 Kxb2 50. Kd4 $8) 49. Bc3 Bg6 50. Kd4 $11) 36... Bxf5 37. Ke3 Bd7 38. Kf4 Be8 39. Kg4 h6 40. f4 {Consider f5 and then Be5 with... white advantage.} g6 $1 41. hxg6 Bxg6 42. f5 Be8 43. Kf4 $3 {[#]Preserving the passage through f6.} (43. f6 $2 b5 44. Kf5 Bf7 { (barrage against wK)} 45. Bf8 a5 46. Ke5 h5 47. Kd4 (47. Kf5 $6 Kc4 48. Kg5 b4 49. axb4 axb4 50. Bd6 b3 51. Be5 Kd3 52. Kh6 h4 {0-1 Neverov-Gyimesi}) 47... b4 48. axb4 axb4 49. Kd3 Ka4 50. Bd6 b3 51. Kd2 h4 52. Kc1 h3 53. Kb2 Kb5 54. Kc3 Kc6 55. Bg3 {(Be5 ...Kd5)} Bd5 56. Bh2 Kd7 $19 {and the King runs to g2}) 43... b5 (43... h5 44. Ke5 b5 45. Kf6 {idem}) 44. Ke5 $1 a5 (44... h5 45. Ke6 h4 46. Ke5 $1 {(the plan Ke7 and f6-f7 now fails by one tempo, facing the two hares "b" & "h")} h3 47. Ke4 h2 (47... Bc6+ 48. Ke3 a5 49. f6 Bd5 50. Kf2 $1) 48. Bxh2 Kxa3 49. Kd3 b4 (49... a5 50. Bc7 $3 {(draw even without "f" pawn)} a4 51. Kc2 b4 52. Bd6 $1 $11) 50. Bd6 $8 a5 51. Kc4 $3 {[#](here however, the "f" pawn is indispensable)} Ka4 52. f6 $1 Bf7+ 53. Kc5 $8 b3 ( 53... Kb3 54. Kb5 $8) 54. Be5 $8 Ka3 55. Kb5 a4 56. Bd4 Be8+ 57. Ka5 $8 Ka2 58. f7 $8 $11) (44... Bf7 45. Kf6 $3 Bc4 46. Kg7 h5 47. f6 a5 48. f7 Bxf7 $8 49. Kxf7 b4 50. axb4 $8 axb4 51. Kg6 $11 {just in time}) 45. Kf6 $1 h5 (45... b4 46. axb4 axb4 47. Ke7 Bh5 (47... Bb5 48. f6 {as already seen}) 48. f6 Kc4 49. Kf8 $1 {and the h6 pawn falls}) (45... Bc6 46. Kg6 $11) 46. Ke7 Bc6 $8 47. f6 Bd5 $8 48. f7 Bxf7 49. Kxf7 h4 (49... b4 50. axb4 axb4 51. Kg6 $11) 50. Ke6 h3 51. Kf5 (51. Kd5 a4 52. Ke4 $8 b4 53. axb4 $8 a3 54. Kf3 $11) 51... h2 52. Bxh2 $8 Kxa3 53. Bc7 $3 {[#]The main principle: attack the opponent's pawns to weaken them.} ({ZG only considers} 53. Ke4 $2 b4 $8 54. Bd6 (54. Kd3 Ka2 55. Be5 b3 56. Kc4 a4 $8) 54... Ka2 $1 55. Kd3 b3 $8 $19) (53. Be5 $2 b4 $8 54. Ke4 Ka2 $19) 53... Kb4 (53... a4 54. Ke4 b4 (54... Ka2 55. Bd6 $1 a3 56. Kd5) 55. Bd6 $8 $11) 54. Ke4 a4 55. Kd3 Kb3 56. Kd2 (56. Bd8 b4 57. Be7 $1 {(or Ba5!) followed by Bxb4!}) 56... Kb2 (56... b4 57. Bd6 $1) 57. Bd6 a3 58. Kd3 $1 (58. Be7 $1 a2 59. Bf6+ Kb1 60. Kd3 $8) 58... a2 59. Be5+ Kb1 60. Bf6 b4 61. Kc4 $8 1/2-1/2 [Event "URS-ch19"] [Site "Moscow"] [Date "1951.??.??"] [Round "8"] [White "Taimanov, M."] [Black "Geller, E."] [Result "0-1"] [ECO "D04"] [PlyCount "86"] [EventDate "1951.??.??"] [EventType "tourn"] [EventRounds "17"] [EventCountry "URS"] [Source "ChessBase"] 1. d4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 O-O 5. e3 d5 6. Be2 Ne4 7. O-O c5 8. Qc1 cxd4 9. Bxd4 Bxd4 10. exd4 (10. Nxd4 e5 11. Nf3 Qf6 12. Qb2 Nc6 13. Rd1 Be6 { Lilienthal}) 10... Nc6 11. Qe3 (11. Qh6 Bg4 12. Nbd2 Bxf3 (12... f6) 13. Nxf3 e6 14. Bd3 Qf6 (14... f5 15. Bb5) 15. Bxe4 dxe4 16. Ng5 Qg7 17. Qxg7+ Kxg7 18. c3 $1 (18. Nxe4 Nxd4 19. c4 {AL})) 11... Bg4 12. Nbd2 Nxd2 13. Qxd2 e6 14. Rfd1 Qf6 15. Ne5 Bxe2 16. Qxe2 Rfc8 {The given move in the databases is ... Rac8? which runs into a nasty fork.} 17. Ng4 Qf4 18. c3 (18. g3 $2 Nxd4 {AL}) 18... h5 (18... Rc7 19. g3 Qd6 20. c4 dxc4 21. d5 exd5 $8 (21... Na5 $2 22. b4 $1 Qxb4 23. Qe5 $18 {AL}) (21... Ne7 $2 22. Nf6+ $1 {(rather than bxc4 AL)} Kf8 23. Ne4 Qd8 24. d6 $18) (21... Nb4 22. bxc4 exd5 23. Qb2) 22. Rxd5 Qb4 (22... Qe6 23. Qxc4 {AL}) 23. bxc4 Re7) 19. Ne3 Rc7 20. g3 (20. c4 Nxd4 21. Qd3 {AL} Nf5 22. Nxf5 gxf5 23. cxd5 Rd8) 20... Qf6 21. Rd3 Rac8 22. Re1 b5 23. Nc2 Ne7 {Both players usually cultivate the initiative, but here Black is clearly winning.} 24. Rf3 (24. Qd2) 24... Nf5 25. Qd2 Qg7 (25... a5 $1 26. Ne3 Qg5 $1 (26... Rxc3 $2 27. Nxd5 {AL})) 26. Rd3 (26. Nb4 Nd6 (26... a5) 27. Na6 Ne4 {AL} 28. Rxe4 dxe4 29. Re3 Rd7 30. Rxe4 e5 $17) 26... a5 27. Ne3 Nd6 28. f3 {Seems to forbid ...Ne4, but it is not the case. } Qf6 $6 (28... Ne4 $1 {(still)} 29. fxe4 dxe4 30. c4 exd3 31. Qxd3 bxc4 32. bxc4 Rb7 $1 (32... Rd8 33. d5 {AL} Qb2) 33. a3 Rb2 $17) 29. Kg2 Nf5 30. Re2 Qg5 31. a3 (31. Nxf5 Qxd2 32. Rexd2 gxf5 33. Rc2 b4 {AL} 34. Kf2 bxc3 35. Ke2) 31... h4 32. f4 Qh5 33. Nxf5 gxf5 34. gxh4 (34. Rf2 h3+ 35. Kg1 b4 36. axb4 axb4 37. Qc1 (37. cxb4 $2 Rc1+ 38. Rf1 R1c2 39. Qd1 Rg2+ 40. Kh1 Rcc2 {AL}) 37... Rxc3 38. Rxc3 Rxc3 39. Qb1 (39. Rc2 Qf3) 39... Qg4 $19) 34... Rxc3 35. Rg3+ (35. Rxc3 Rxc3 36. Qxc3 (36. Re3 Rxe3 37. Qxe3 Qd1) 36... Qxe2+ 37. Kg1 Qe4 $1 (37... Qg4+ $2 38. Qg3 Kh7 {AL}) 38. b4 (38. h3 Qxf4) 38... axb4 39. axb4 Kh7 $1 (39... Qxf4 40. Qg3+) 40. Qd2 Qf3) 35... Kh7 $1 36. Rf2 $2 (36. Rxc3 Rxc3 37. Re3 Rxe3 38. Qxe3 Qg4+ 39. Qg3 Qd1) 36... b4 $1 37. axb4 axb4 38. Qe1 Qxh4 39. Qe5 Rg8 40. Rff3 (40. Rxg8 Kxg8 $8 $19 (40... Qh3+ $4 41. Kh1 $8)) 40... Rc2+ 41. Kf1 {The Rh3 threat is an illusion, but there is another defensive idea in the position, if not in White's mind} Rxh2 $2 {In Black's mind either, but did he only know that control had passed? ?} (41... Rg4 $3 42. Qe3 (42. Rh3 Rc1+ $1 43. Ke2 Rg2+ $1 {(AL indicates ...Re1+)} 44. Kd3 Rc3#) (42. Rxg4 fxg4) 42... Rxh2 $1 (42... Rc3 43. Qf2) (42... Ra2 $1) 43. Rh3 (43. Rxg4 fxg4) 43... Rh1+ $8 44. Rxh1 (44. Ke2 Rg2+ 45. Kd3 Rd1+) 44... Qxh1+ 45. Ke2 Rh4 $1 (45... Qb1 $1) 46. Rf2 Qb1 $1 ) (41... f6 $2 42. Qd6 $1 Rc1+ 43. Kg2 $8 Rxg3+ 44. Rxg3 $8 Rc2+ 45. Kf1 $8 Rc1+ 46. Kg2 $11) (41... Rc1+ 42. Kg2 Qh5 $1 {(rethreatens ...Rc2+)} 43. Rxg8 Rc2+ 44. Rf2 Rxf2+ 45. Kxf2 Kxg8 46. Kg2 Qg4+ 47. Kf2 Qh3 48. Qb8+ Kg7 49. Qxb4 Qxh2+ 50. Kf3 Qh3+ 51. Kf2 Qh4+) (41... Rxg3 $2 42. Rxg3 $11) (41... Rg6 42. Rxg6 fxg6 43. h3 $8 Rc1+ 44. Kg2 Qe1 $1 45. Qxe1 Rxe1 46. Rd3 Re4 47. Kg3 g5 48. fxg5 Kg6 49. Rd1 (49. h4 Rg4+ 50. Kh3 Kh5) 49... Kxg5) 42. Qe3 $2 (42. Rxg8 $8 Kxg8 $8 (42... Rh1+ 43. Rg1) 43. Rg3+ $3 {[#]} Qxg3 44. Qb8+ $8 (44. Qg7+ $2 Qxg7 $8) (44. Qh8+ $2 Rxh8 $8) 44... Kh7 (44... Kg7 45. Qg8+) 45. Qh8+ $3 Kxh8 $8 { pat}) 42... Ra8 $1 43. Rg7+ Kh6 0-1 [Event "Moscow"] [Site "Moscow"] [Date "1935.??.??"] [Round "16"] [White "Botvinnik, M."] [Black "Chekhover, V."] [Result "1/2-1/2"] [ECO "A13"] [PlyCount "86"] [EventDate "1935.02.15"] [EventType "tourn"] [EventCountry "RUS"] [SourceDate "2000.07.25"] {It is more than a game (given on the 25th move), a mega-analysis by a champion of this exercise, the German GM and world championship candidate Robert Hübner. At a time when, of course, analysis engines were a dream. So sometimes he gets it wrong, but strangely enough, not when he pins the idol of the years 30-60 !} 1. Nf3 d5 2. c4 e6 3. b3 Nf6 4. Bb2 Be7 5. e3 O-O 6. Be2 c6 7. O-O Nbd7 8. Nc3 (8. Qc2 b6 (8... Bd6 9. d3 Qe7 10. Nbd2 Ba3 {Andersson,U (2535)-Szabo,L (2555)/Sochi 1973}) (8... Re8 9. d4 Bd6 10. Nc3 dxc4 11. Bxc4 Qe7 12. Rfd1 {Comas Fabrego,L (2475)-Gil Capape,J (2440)/Ponferrada 1997}) 9. Nc3 Bb7 10. d4 Rc8 11. e4 c5 12. exd5 exd5 13. dxc5 dxc4 14. b4 a5 {Sokolsky,A-Budo,A/Leningrad 1938}) (8. d4 b6 9. Nc3 Bb7 10. Rc1 Rc8 11. cxd5 cxd5 12. Bd3 Ne4 13. Nd2 Nxc3 14. Bxc3 Rc7 {Radjabov,T (2395) -Volokitin,A (2285)/Baku 1999}) 8... a6 (8... Re8) (8... b6) 9. Nd4 {[#]For f2-f4.} (9. Qc2) (9. d4 b5 10. Qc2 Bb7 11. e4 b4 12. e5 bxc3 13. exf6 Nxf6 14. Qxc3 a5 15. Ne5 a4 16. bxa4 Rxa4 17. Bd1 Ra7 18. Bb3 Qa8 19. Rfd1 dxc4 20. Qxc4 Rc8 $2 (20... c5) 21. Nxf7 $1 {(echo of Botvinnik ?) Gouret,T (2215) -Trabattoni,F (2340)/Cannes 1992}) 9... dxc4 $6 (9... c5 10. Nc2 Qc7) 10. bxc4 Nc5 (10... c5) 11. f4 Qc7 12. Nf3 Rd8 (12... b5) 13. Qc2 Ncd7 14. d4 c5 $6 ( 14... b5 $1) 15. Ne5 (15. d5 $1) 15... b6 (15... cxd4 16. exd4 b5 17. cxb5 axb5 18. Bxb5 Bb7 19. Qe2 Qb6 $44) 16. Bd3 cxd4 17. exd4 Bb7 18. Qe2 Nf8 19. Nd1 $1 {[#] Aiming for f7! This original plan will disconcert Black, who has already sinned by passivity.} Ra7 $6 (19... Rac8) (19... Ng6 {(forbids the plan because of .. .Nxf4)} 20. Ne3 Be4) 20. Nf2 Qb8 $6 (20... Ng6 $6 21. Nh3 Nd7 22. Nxf7 $1) ( 20... N8d7 21. Nh3 h6) 21. Nh3 $1 {The situation is already almost untenable.} h6 (21... N6d7 22. Qh5 g6 (22... Nxe5 23. fxe5 Ng6 24. Rxf7 $1) 23. Qh6 $1 (23. Qe2 b5) 23... Ba8 (23... f6 24. Bxg6 $1) (23... b5 24. d5 $1) 24. d5) (21... Ba8 22. Ng5 Bd6) 22. Ng5 $1 {[#]} (22. f5 $1) 22... hxg5 23. fxg5 N8d7 $2 {Gives the opportunity to... no less than three wins !} (23... N6h7 $1 {(less evil ?) } 24. Nxf7 Nxg5 25. Qh5 Bf3 26. Rxf3 Nxf3+ 27. Qxf3 Rdd7 28. Ne5 Bd6 29. Nxd7 Bxh2+ 30. Kh1 Rxd7 31. Rf1 $16) 24. Nxf7 $1 {The move played in the game and generally praised, is as good as the other two candidate moves, but with a completely different idea than the one of White's player.} (24. Nxd7 $1 Nxd7 ( 24... Rxd7 25. gxf6 Bxf6 26. Rxf6 gxf6 27. Qg4+ $1 Kf8 28. Ba3+) 25. Rxf7 $3 {[#]} Kxf7 (25... Ne5 26. Rxe7) 26. Qh5+ Kg8 27. Qh7+ Kf8 28. Qh8+ Kf7 29. g6+ Kf6 30. Qh4#) (24. gxf6 $1 Nxf6 (24... Bxf6 25. Nxd7 Rxd7 26. Rxf6) 25. Nxf7 $3 ( 25. Rf4) 25... Kxf7 26. Qh5+ {: see below}) (24. g6 Nxe5 25. dxe5 Bc5+ 26. Kh1 Bxg2+ $1 (26... Ng4 $1) 27. Kxg2 Ng4 $1 28. Rxf7 Rxf7 29. gxf7+ Kxf7 30. Rf1+ Kg8 31. Qxg4 Rxd3 32. Qxe6+ Kh8 $8) 24... Kxf7 25. g6+ $2 {Supposed to be the final straw, but on the contrary, spoils everything. Let us note that with the pawn a2 in a3, there would be no more win !} (25. gxf6 $1 Nxf6 (25... Bxf6 26. Qh5+) 26. Qh5+ $8 Kg8 27. Rxf6 $3 Bxf6 28. Bg6 $1 (28. Rf1 $1) 28... Bc6 29. Rf1 $1 ( 29. Qh7+ $1) 29... Be8 30. Qh7+ $8 Kf8 31. Ba3+ {: the necessary tip}) (25. Qh5+ $1 Kg8 26. gxf6 {idem}) 25... Kf8 $8 (25... Ke8 $2 26. Qxe6 $8 Nf8 27. Qf7+ $8 Kd7 28. Bf5+ $1 (28. Ba3 $1 Re8 29. Rxf6 gxf6 30. g7 $18 {Pachman}) 28... Kc7 29. Qxe7+ N8d7 30. d5 $18) ({In the game, Black played} 25... Kg8 $2 26. Qxe6+ Kh8 27. Qh3+ $8 (27. Qxe7 $2 Re8 $1 28. Qb4 Bxg2 $1 29. Kxg2 Ng4 $1 30. Kh3 {(Rh1? Qf4!)} Ndf6 $19) (27. Rxf6 $2 Nxf6 $11) 27... Kg8 28. Bf5 $3 Nf8 29. Be6+ $8 Nxe6 30. Qxe6+ $8 Kh8 31. Qh3+ $1 (31. Rxf6 $1) 31... Kg8 32. Rxf6 $3 Bxf6 33. Qh7+ $1 Kf8 34. Re1 $8 Be5 35. Qh8+ $1 (35. d5 $1) 35... Ke7 36. Qxg7+ Kd6 (36... Ke6 37. Qf7+) 37. Qxe5+ Kd7 38. Qf5+ Kc6 ( 38... Kd6 39. Ba3+) 39. d5+ Kc5 40. Ba3+ Kxc4 41. Qe4+ Kc3 42. Bb4+ Kb2 43. Qb1# {1-0 Botvinnik-Chekhover}) 26. Qxe6 Ne5 $3 {[#]} 27. Rxf6+ $1 {Given in a analysis by Botvinnik. Neither more nor less good than Qh3, in any case only leads to a draw.} (27. dxe5 $2 Bc5+ 28. Kh1 Bxg2+ 29. Kxg2 Rxd3 {(/\ Qa8)} 30. Rxf6+ {(= according to Vukovic)} gxf6 31. Qxf6+ Kg8 32. Rf1 Qe8 $19) (27. Rae1 $6 Bc8 $1 {VV} (27... Qd6 28. Rxe5 Qxe6 29. Rxe6 $11) 28. Qxe5 Qxe5 29. Rxe5 (29. dxe5 Rxd3) 29... Bd6 30. Ree1 Re7 31. Rxe7 Kxe7 $15) (27. Qh3 $1 Nf3+ $3 {VV[#]} (27... Nf7 $2 28. gxf7 $8 Bc8 29. Qh8+ Kxf7 30. Qh5+ $1 (30. Qh7 $1) 30... Kg8 31. Rxf6 Bxf6 (31... gxf6 32. Qg6+ Kf8 33. Bc1 $1 $18) 32. Bh7+ Kf8 33. Ba3+ Re7 ( 33... Rd6 34. Qd5 $1) 34. Bg6 Be6 35. Qh8+ (35. Re1 {VV}) 35... Bg8 36. Rf1 $1 Rd6 37. Bh7 $1 $18) 28. Rxf3 Bxf3 29. Rf1 (29. Qh8+ Ng8 30. Rf1 Bf6 31. Rxf3 Qd6 32. d5 Re8 33. g4 Re5 34. Bxe5) 29... Ke8 30. Rxf3 Qd6 $1 (30... Bf8 $6 31. g4 Qc8 32. Rf5) 31. Bf5 (31. Re3 Qf4) 31... Bf8 (31... Rdd7 32. Qh8+ Bf8 33. Bxd7+ Rxd7 $11) 32. Re3+ Re7 33. Be6 (33. Ba3 Qxd4 34. Bxe7 Qd1+ 35. Kf2 Rd2+ 36. Kg3 Re2 $1 37. Rxe2 Qxe2 38. Bxf6 gxf6 39. Qg4 Bd6+ {and the two extra pawns have no great significance}) 33... Ra8 $1 (33... Rb8 34. d5 Rbb7 35. Be5) 34. d5 Kd8 {(removal of the royal bedding)} 35. Qf3 Raa7 (35... Re8) 36. Ba3 $1 (36. Be5 Qc5) (36. Bxf6 $2 gxf6 37. Qxf6 $6 Bg7) 36... Qb8 $8 37. Bb2 (37. d6 Red7) 37... Qd6 (37... Qc7) 38. Be5 Qc5 $1 $11) (27. Rad1 $6 Bc8 28. Qxe5 Qxe5 29. dxe5 Bc5+ 30. Kh1 Bg4 {Hübner}) 27... gxf6 (27... Bxf6 $2 28. Ba3+) 28. Qh3 $1 (28. g7+ $6 Kxg7 29. Qxe7+ Nf7 {RH} 30. Rf1 Qd6 31. Qe3 $1 Rh8 32. Rf4) 28... Bb4 $2 {MB wants to justify his Rxf6+, but he does not see the right defence.} (28... Ke8 $2 29. g7 $1 (29. Bf5 {RH} Bc8 30. Qh8+ Bf8 31. Ba3 Bxf5 32. Qxf8+ Kd7 33. Qxf6 Nf3+ 34. gxf3) 29... Kf7 30. Qh7 $3 Rg8 31. dxe5 $8 Bc5+ 32. Kf1 $8 Bxg2+ 33. Ke2 $8 Rxg7 34. Bg6+ $8 Ke6 35. Bf5+ $8 Kf7 36. e6+ $8 Ke8 37. Bg6+) (28... Bc5 $3 {(brilliant rescue)} 29. Rf1 (29. dxc5 Bxg2 $1 (29... Bc8 30. Qh4) 30. Kxg2 (30. Qh8+ $2 Ke7 31. Qh7+ Ke6 32. Bf5+ Kxf5 33. g7+ Ke6 $19 {RH}) (30. Qh6+ Kg8 31. Bf5 Re8 32. Kxg2 bxc5 33. Rb1 $1 Qa8+ 34. Kg1 Qf3 35. Rf1 Qe2 {RH}) 30... Qa8+ 31. Kg1 Rxd3 32. Qh8+ Ke7 33. g7 Nf3+ ( 33... Rd8 34. Qh7 Rg8 35. Bxe5 fxe5 36. cxb6 Rd7 $1 {RH} 37. Rf1 Rd4) (33... Rd2 34. g8=Q Nf3+ 35. Kf1 $11 {RH}) 34. Kf2 $8 (34. Kf1 $2 Kf7 $1 {(RH only examines ...Nxh2+)} 35. c6 Qg8 $1) 34... Kf7 (34... Rd2+ 35. Ke3 $8 Kf7 { RH} 36. Bxf6 $1) 35. cxb6 Rd2+ 36. Kg3 Rg2+ $3 {[#]} 37. Kf4 $8 (37. Kxg2 $2 Ne1+ $3 {(not ...Nh4+? Kg3=)} 38. Kf2 Qf3+ 39. Kxe1 Re7+ $8) 37... Ne5 (37... Rxg7 38. Qh5+ {ou Qxa8}) 38. Bxe5 Rf2+ 39. Kg4 $11) (29. Qh4 $6 Bxd4+ $1 (29... Bxg2 30. Qxf6+ $8 {(Kxg2? Nxd3 RH)} Kg8 $1 {(neither ...Nf7? dxc5 RH nor ...Ke8? Re1 RH nor even ...Rf7?! gxf7 Qd6 Qh8+ and Qh4+)} 31. dxc5 Nf3+ $3 {[#]} 32. Kf2 {RH} Nd4 $8 { (threatens ...Rf8)} 33. Kxg2 bxc5 34. Bxd4 Rxd4 {(...cxd4? c5!)} 35. Rb1 Qa8+ 36. Kg1 Rg4+ 37. Kf2 Qg2+ 38. Ke3 Qh3+ $8 39. Kd2 $8 Qxh2+ 40. Kc3 $8 Qf4 $1 41. Qe6+ Kg7 42. Rh1 Qf6+ 43. Qxf6+ Kxf6 44. Rf1+ Kg7 $11) (29... Qd6 30. dxc5 Qxc5+ 31. Kh1 Bxg2+ $1 {(or ...Ke8! or ...Rxd3 Qxf6+ Ke8 Bxe5 RH Qc6 Qxc6+ and g7 ; but not ...Qc6? Be4! RH Qd6 Ba3)} 32. Kxg2 Nxd3 {(or ...Kg8)} 33. Bxf6 $8 Qc6+ 34. Kg3 $11 Qd6+ {RH}) (29... Rxd4 30. Bxd4 Qd6 {(even better ... Bxd4+ then ...Bc6)} 31. Bxc5 Qxc5+ 32. Kh1 Nxd3 33. Qxf6+ Ke8 34. g7 Nf2+ 35. Qxf2 Qxf2 36. g8=Q+ Ke7 37. Rd1 $10 {RH}) 30. Bxd4 Qd6 31. Bc3 (31. Be3 Ba8 $1) 31... Nxd3 $6 ({better} 31... Ba8 $1) 32. Bb4 $3 {[#](not considered by RH)} ( 32. Qh8+ $2 Ke7 33. Qg7+ Ke6 {RH}) (32. Rf1 $2 Qc5+ $8 33. Kh1 Nf2+ {RH}) (32. Bxf6 $2 Qc5+ 33. Kf1 Qf5+ 34. Kg1 Qxg6 $19 {RH}) 32... Nc5 (32... Nxb4 33. Qh8+ $8 {(Re1? Qd4+)} Ke7 34. Qh7+ Ke6 35. Re1+ Qe5 $11) 33. Qh8+ $8 Ke7 34. Qh7+ Ke6 35. Qf7+ (35. Re1+ $2 Be4 36. Rxe4+ Nxe4 37. Qh3+ f5 38. Bxd6 Rxd6 $17) 35... Ke5 36. Bc3+ $8 Ke4 37. g7 $8 {(threatens Qg6+)} Qd1+ (37... Ke3 38. Re1+ Kd3 39. Rd1+) (37... Bd5 38. Qg6+ f5 $8 39. g8=Q Bxg8 40. Re1+ $8 Kd3 $8 41. Rd1+ $8) (37... Nd3 38. Qg6+ $8 Ke3 39. Bxf6 $1 {(or Rf1!)} Qc5 40. Qg5+ $8 Qxg5 {(or ...Ke4+ for 42...Bd5!)} 41. Bxg5+ Nf4 $8 42. Bxd8 {(Re1+)} Ne2+ $8 43. Kf1 Bxg2+ $8 44. Kxg2 Rxg7+) 38. Rxd1 Rxd1+ 39. Kf2 Kd3 $3 {[#](threatens ... Ne4+ then Rf1+ & Bc8+)} 40. Be1 (40. Kg3 Rg1 $8 41. Kh4 Rxg2 $8 42. Bxf6 Rxh2+ 43. Kg3 $11) 40... Ne4+ 41. Kf1 Nd2+ 42. Kf2 $11) (29. Qh8+ Ke7 30. Qh7+ $8 ( 30. Qg7+ $2 Ke6 31. Bf5+ Kxf5 32. Rf1+ Bf3 $19 {RH}) 30... Ke6 31. Qh3+ $8 Ke7 $1 $11 (31... Kd6 $2 32. dxc5+ {RH} bxc5 33. Rf1)) (29. Bf5 $2 Rxd4 $3 (29... Bc8 $6 30. Qh8+ Ke7 31. Qg7+ Ke8 32. Qg8+ Bf8 $6 {(Ke7=)} 33. Ba3 $1 Bxf5 { (Rd6? dxe5 RH)} 34. Qxf8+ {(g7 RH Ng6!)} Kd7 35. Qxf6 Nf3+ 36. gxf3 Qf4 37. Re1 $16) (29... Qd6 $6 30. Qh8+ {(dxc5 Qxc5+ then Bxg2+! Qxg2 Kg7 RH)} Ke7 31. Qh7+ Ke8 $10 {RH}) (29... Bxg2 $2 30. Qh6+ $1 Ke7 31. dxc5 $16) (29... Bxd4+ $2 30. Bxd4 Qd6 31. Rd1 Bc8 32. Bxc8 Nxg6 33. Be6 $16) 30. Qh8+ (30. Bxd4 $2 Bxd4+ 31. Kh1 Bxg2+ {RH} 32. Kxg2 Qa8+) 30... Ke7 31. Qg7+ (31. Qxb8 $2 Rd1#) 31... Kd6 32. Qxf6+ Kc7 33. Qxe5+ {RH} Kc6 $3 {[#]} (33... Rd6+ $2 34. Kh1 Qg8 35. Rd1 Bc8 36. Bxc8 Qxc8 37. g7 $11) 34. Bxd4 (34. Be4+ Rxe4+) (34. Qxb8 Rd1#) 34... Qxe5 $19) 29... Qd6 $1 (29... Nxd3 $2 30. Rxf6+ Ke8 31. Qe6+ Be7 32. Rf8+ Kxf8 33. Qf7# { RH}) (29... Bf3 $2 30. dxc5 Nxd3 31. Qh8+ Ke7 32. Bxf6+ {RH} Kd7 33. Qxd8+) ( 29... Rxd4 {(not considered by RH)} 30. Qh8+ $8 {(Rxf6+? Kg7)} Ke7 31. Qxf6+ $8 Kd7 32. Bxd4 $8 Bxd4+ 33. Kh1 Qe8 {(Qd6 g7 Ra8 QxQ and Rf8+/-)} 34. g7 Ra8 35. Bh7 Nc6 36. Qf5+ Qe6 $8 37. Qxe6+ Kxe6 38. g8=Q+ Rxg8 39. Bxg8+ Kd6 40. h4 Ne5 41. Bd5 $1 Bc8 42. Rf6+ Ke7 43. Rf4 $14) 30. dxc5 (30. Qh8+ Ke7 31. Qh7+ Ke8 32. g7 Bxd4+ $8 33. Bxd4 $8 Qxd4+ $8 34. Rf2 $8 Bd5 $8 35. cxd5 $8 Rxg7 $8 {RH} 36. Qh8+ $8 Kf7 37. Qxd8 Nxd3 38. Qd7+ Kg6 39. Qf5+ Kf7 $11) 30... Qxc5+ $8 31. Kh1 $8 (31. Rf2 $2 Rxd3 $1 32. Qh8+ Ke7 33. Qxf6+ Kd7 34. Qf5+ Kd8 35. Qf6+ {RH } Ke8 $1 36. Qh8+ Kd7 $8 37. Qg7+ Kc6 $19) 31... Bxg2+ $1 32. Kxg2 $8 (32. Qxg2 $2 Rxd3 $8 33. Rxf6+ Kg8 $19 {RH}) 32... Qc6+ $8 33. Kg1 $8 Rxd3 34. Qh8+ $8 Ke7 35. g7 $1 (35. Qg7+ Kd8 {RH} 36. Qh8+ Kd7 37. Bxe5 Qc5+ 38. Kh1 Qxe5 39. Qh7+ $8 Kc6 40. Qxa7 Qe4+ 41. Kg1 Qxg6+ 42. Kh1 $11) 35... Nf3+ (35... Ra8 36. Bxe5 $11) 36. Rxf3 $8 Qxf3 {RH} 37. Bxf6+ $3 {[#]} Kd7 $1 (37... Kxf6 $2 38. g8=Q+) ( 37... Qxf6 $2 38. g8=N+ $3 {picture ![#]}) 38. Qd8+ $8 Kc6 $8 39. Qc8+ Rc7 40. Qa8+ $8 Rb7 $11) 29. Re1 $4 {MB makes White lose, while he has the win !} (29. dxe5 $4 Bc5+ $8 30. Kh1 Bxg2+ $8 31. Kxg2 (31. Qxg2 Rxd3 32. exf6 Rad7 $19) 31... Qa8+ $8 32. Kf1 Rxd3 $8 33. Qh8+ (33. Qxd3 Rd7 $3 {(not considered by RH; also ...Qh1+ for Qh2xb2)} 34. Qxd7 Qf3+ $8 35. Ke1 Bb4+ $8) 33... Ke7 34. exf6+ (34. Qxf6+ Ke8 $19) 34... Kd6 $1 (34... Kd7 $1) 35. Qxa8 Rxa8 36. f7 (36. Re1 Rf3+ {/\ Rf2+}) 36... Ke7 $1 (36... Ke6 37. Re1+ Re3 38. Rxe3+ Bxe3 39. Bg7 Bc5 {(menace ...Rf5)} 40. h4 Bf8 $1 {RH}) (36... Rd2 $1 37. Ke1 Rf2 $1 38. Rd1+ Ke7 39. Rd2 Rf4) 37. Bg7 Rd6 $1 38. Re1+ Kd7 $19) ( 29. Rf1 $3 Nf3+ (29... Bf3 30. dxe5 $3 (30. Qh8+ $2 Ke7) (30. Bf5 $1) 30... Bc5+ 31. Kh1 Bxg2+ (31... Rxd3 32. Qh8+ {/\ Qxb8 +-}) 32. Kxg2 $8 Qa8+ 33. Rf3 $8 (33. Qf3 Rxd3 $19) 33... Rxd3 34. Qh8+ $8 Ke7 35. exf6+ $8 Kd7 (35... Kd6 36. Qd8+ $3 {[#](of course, Qxa8 also wins, but it is more spicy)} Qxd8 37. Rxd3+) 36. Qxa8 $8 {(this time essential)} (36. Qh3+ $2 Kd8 37. g7 {RH} Rd2+ $8 38. Kf1 Rd1+ $8 39. Ke2 Qe4+ $8) 36... Rd2+ 37. Kf1 $8 (37. Kh3 $2 Rxa8 38. f7 Bd6 $1) 37... Rxa8 38. g7 (38. f7 Bf8 39. g7) 38... Rxh2 39. f7 $8 Rh1+ 40. Ke2 $8 Rg1 41. Kd3 $1 Rxg7 42. Bxg7 Bf8 43. Bd4 (43. Bxf8 Rxf8 44. Kd4 $1 ( 44. Rf6 $2 Ke7 45. Rxb6 Kxf7 46. Rxa6 Ke7 $8 $11) 44... Ke6 45. c5 $18) 43... Rb8 (43... b5 44. c5) 44. Ke4 $18) (29... Qd6 30. Qh8+ $1 Ke7 31. Qh7+ $8 (31. Qg7+ $2 Ke8 32. Rxf6 Qe7) 31... Ke8 32. g7 $8 Bd5 33. cxd5 (33. dxe5) 33... Rxg7 34. Qxg7 Nxd3 35. Qg6+ {RH} Kd7 36. Qxd3 $18) (29... Bxg2 30. Qh8+ $8 (30. Kxg2 $2 Nxd3 31. Rxf6+ Kg8 {RH}) 30... Ke7 31. Qxf6+ Ke8 (31... Kd7 32. Bf5+ Kc7 33. Qxe5+ Bd6 34. Qg7+ Kc6 35. d5+ {RH}) 32. Kxg2 $8 (32. g7 $4 Rxg7 33. Qxg7 Bxf1 $19) (32. Qh8+ $2 Kd7 33. Bf5+ $2 Kc6 34. d5+ Kc5 $1 $19) 32... Nxd3 (32... Qb7+ 33. d5 $8) 33. Qc6+ $3 {(seems to be "forgotten" by RH)} Rad7 34. g7 $8 $18) (29... Bc8 30. Qh8+ $8 Ke7 31. Qxf6+ $8 Kd7 32. dxe5 $18) 30. gxf3 $8 Qf4 31. Re1 $3 {[#]} (31. Bf5 $2 Ke7 32. d5 Qxc4 {RH}) (31. Qe6 $4 Bxf3 $19) ({also good} 31. d5 $1 Bc8 {(on ...Ba8 follows the quiet Kh1! Ra7 clashing with ...Bc5+ then ...Rh8!)} 32. Qh8+ $8 Ke7 33. Qg7+ $1 {(Re1+? Kd7)} Kd6 34. Qxa7 $8 Bc5+ 35. Kh1 $8 Bh3 {(...Rh8, says RH, without seeing Qb8+ : in this, the bB is worse on c8 than on a8 !)} 36. Qb7 $18) 31... Bxe1 (31... Bd5 32. Qh8+ $8 Bg8 33. Bc1 $3 Qxd4+ 34. Be3) 32. Qh8+ $8 {(not considered by RH)} (32. Ba3+ $2 Rd6 {RH}) 32... Ke7 33. Qg7+ Kd6 34. Ba3+ Kc6 35. d5+ Rxd5 36. cxd5+ Kxd5 37. Qd7+ $8 Ke5 38. Qd6#) (29. Bf5 $6 Bc8 $3 {(this defence has been underestimated, even by RH)} (29... Bxg2 $6 30. Qh6+ $1 (30. Qh8+ $1 Ke7 31. Qg7+ {RH} Ke8 32. Qg8+ Bf8 33. dxe5 b5 34. Bc3 $1 {(Ba3?! b4 Re1 Qb6+)} fxe5 35. Bb4 Qb6+ 36. Kxg2 Qf6 37. Rf1 Rg7 38. Bd7+ $1 Kxd7 $8 39. Qd5+ $8 Kc8 40. Qa8+ $1 Kc7 41. Qa7+ Kc8 42. Rxf6 Rxa7 43. Bxf8 $18) 30... Ke8 (30... Ke7 31. dxe5 $3 fxe5 32. Qh4+ $1 Ke8 33. Re1 $3 {[#]} Bxe1 34. Qh8+ Ke7 35. Ba3+) 31. g7 $3 Rxg7 (31... Nf3+ 32. Kxg2 Rxg7+ 33. Kxf3 {(Qxg7 too)} Qb7+ 34. d5 $8) 32. Qxg7 Qb7 33. Qg8+ $8 Ke7 34. Qe6+ $8 Kf8 35. Qxf6+ $8 Nf7 36. d5 $3 Bxd5 37. Qg7+ $8 Ke8 38. Ba3 $3 {[#]} Bxa3 39. Re1+ Be7 40. Qg8#) (29... Nf3+ $2 30. gxf3 Qf4 31. Qh8+ $1 (31. d5 {RH} Ke7 32. Re1+ Kd6) 31... Ke7 32. Re1+ $1 Bxe1 33. Ba3+) (29... Nxg6 $2 30. Qh6+ $1 (30. Bxg6 $2 Bxg2 $1 31. Kxg2 {(Qh8+ Ke7 then Kd6)} Qf4 32. Qh8+ Ke7 33. Qg7+ Kd6 34. Qxa7 Qg4+ 35. Kf2 Qf4+ 36. Ke2 Re8+ 37. Bxe8 Qe4+ 38. Kf2 Qf4+ $10 {RH}) 30... Ke7 31. Re1+ Kd6 32. Qxg6 Kc6 33. Re6+ Rd6 34. Re8 $18) (29... Nxc4 $2 30. Qh8+) 30. dxe5 {(RH stop there)} Bxf5 31. Qxf5 Rad7 $1 (31... Rd2 32. exf6 $1 Rxb2 33. Qh5 $8 Bc5+ 34. Kh1 Kg8 35. Rf1 $1 Rf2 36. Rxf2 Bxf2 37. f7+ Rxf7 38. gxf7+ Kg7 39. Qg5+ Kxf7 40. Qf5+) (31... Qc8 32. Qxf6+ Ke8 33. Rf1 Re7 34. g7 Kd7 35. Qf8 $1) 32. Qh5 $1 Qc7 $8 (32... Qc8 $2 33. Qh8+ Ke7 34. Qg7+ Ke8 35. Qg8+ Bf8 36. Re1 Rd1 37. Qf7#) 33. a3 $1 (33. Qh8+ Ke7 34. exf6+ Kd6) 33... Qc5+ $3 {[#]} (33... Bc5+ $2 34. Kh1 $8 {(White is winning, despite one less rook and mate threats from the corridor)} f5 35. Re1 $1) 34. Kh1 Kg8 $8 {(e5 pawn is pinned)} 35. axb4 Qf2 $1 (35... Qxb4 36. Bd4 $1 Qd2) 36. Bc3 $1 Qe3 $8 37. g7 $1 Rxg7 $8 38. exf6 Qxc3 $8 39. Rf1 Rgd7 40. Qg6+ (40. f7+ $2 Kf8 $8) 40... Kf8 $8 (40... Kh8 $2 41. f7) 41. Qh6+ Kf7 42. Qh5+ Ke6 43. Qf5+ Kf7 $1 $11) (29. Qh8+ $1 Ke7 30. Qh7+ Kd6 (30... Ke8 $6 31. g7 Bd5 32. cxd5 Rxg7 33. Qxg7 {RH} Nxd3 34. Qg8+ Bf8 35. Ba3) (30... Ke6 31. Qh3+ Ke7 {(Kd6 dxe5+ then Rf1)} 32. dxe5 {RH} fxe5 33. Qh4+ Ke8 34. Qh8+ $8 Kd7 35. Qg7+ $8 Kc6 36. Bxe5 $8 Rd7 37. Be4+ Kc5 38. Qf6 $3 {threatens Qf2+}) 31. dxe5+ fxe5 (31... Kc5 32. Qe7+) (31... Kc6 32. Rf1 $1) 32. Qh4 $1 (32. g7 $4 Bc5+ $8 33. Kh1 Bxg2+ $8 34. Kxg2 Qb7+ $8 35. Be4 Qxg7+ {RH}) 32... Bc6 (32... Ke6 33. Bf5+ $3 {[#](stronger than Qg4+ of RH)} Kxf5 34. Rf1+ Ke6 35. Rf6+ $8 Ke7 36. Rf7+ $8 Kd6 37. Bxe5+ $3 {[#](chameleon-echo)} Kxe5 38. Qf4+ $8 Ke6 39. Qf6#) ( 32... Bc5+ 33. Kh1 $8 {RH} Re8 34. Rd1 $18) (32... Rf8 33. Rd1 $1 {(even better than Qg3 RH Bc5+ then Bxg2+ & Qb7)} Qe8 {(for ...Kc7)} 34. Qg3 $3 { (or Qg5 Bc6 g7!)} Bc6 35. Bxe5+ $3 Qxe5 36. Bf5+ $8) 33. Qf6+ Kc7 34. Bxe5+ Bd6 $8 35. Qe7+ $8 Kc8 $8 36. Bf5+ $8 Bd7 $8 37. Bxd6 $8 Bxf5 $8 38. Qxd8+ $8 Kxd8 39. Bxb8 $8 $16) 29... Bc8 $2 {Logic: MB doesn't see the refutation.} (29... Bxg2 $3 30. Kxg2 (30. Qh6+ Kg8 $8 31. dxe5 Rxd3 $19 {RH}) (30. Qh8+ Ke7 31. Qh7+ Ke6 $1 32. Qh5 Rxd4 $1 $19) 30... Bxe1 $8 31. Qh8+ (31. dxe5 Qa8+ $3 {[#]} 32. Kg1 Bb4 33. Qh8+ Ke7 34. exf6+ Kd6 {(the bR is defended, which would not have been been the case after 31...Qb7+?)} 35. Qh4 Qf3 $1 $19) (31. Ba3+ $2 Kg8) 31... Ke7 32. Ba3+ Kd7 $8 33. Bf5+ (33. Qh3+ Kc7 $8 34. dxe5 Qb7+ 35. Kg1 fxe5 $19 {RH}) (33. Qg7+ $2 Kc8) 33... Kc7 $8 34. Qg7+ (34. Qxf6 Qb7+ 35. d5 Rxd5 $1 36. cxd5 Qxd5+ {RH}) 34... Nd7 $8 35. Qe7 Kc8 $8 36. Bd6 (36. g7 Qf4 $8 37. Qxd8+ Kxd8 38. g8=Q+ Kc7 39. Qd5 Qf2+ 40. Kh3 Qf1+ $1 41. Kg4 Ne5+ 42. dxe5 Qe2+ 43. Kf4 { (Kh3 Qe3+)} Qxh2+ 44. Ke3 Qxe5+) 36... Bb4 $3 {[#](pin !)} 37. Bxb4 Qf4 $8 38. Qe6 (38. Qxf6 Kc7) 38... Rc7 $3 39. g7 (39. Bd6 Qd2+) 39... Kb7 $1 (39... Qg5+ $1 40. Kf3 Qxg7) 40. Bd6 Ne5 $3 {[#](self-pin !)} 41. Bxc7 Qf3+ 42. Kg1 Qd1+ $8 43. Kg2 (43. Kf2 Qxd4+ $8) 43... Qe2+ $8 44. Kg3 Qf3+ $8 45. Kh4 Rxd4+ { suivi du mat en deux}) (29... Bxe1 $2 30. Ba3+ $1 (30. Qh8+ $4 Ke7 {RH}) 30... Ke8 31. Qe6#) 30. Qh6+ $8 Ke8 (30... Kg8 31. dxe5 $8 Re8 (31... Bf8 32. Qh4 Rxd3 33. exf6 $18 {RH}) 32. Re4 $1 {RH} (32. exf6 $2 Rxe1+ 33. Kf2 Qd6 $8 34. f7+ Rxf7+ 35. gxf7+ Kxf7 {RH}) (32. Qh5 $1 Re6 33. Re4) (32. Be4 $1) 32... Bf8 (32... Bc5+ 33. Kh1) 33. exf6 $3 {[#]} Bxh6 (33... Rxe4 34. f7+ Rxf7 35. gxf7+) 34. Rxe8+ Bf8 35. Be4 $1 (35. Ba3 $1) 35... Qd6 36. Bd5+ $8 Be6 37. Bxe6+ Qxe6 38. Rxe6 $18) (30... Ke7 31. dxe5 $8 (31. g7 $2 Be6 $1 32. dxe5 Bxe1) 31... Be6 32. exf6+ Kd7 33. Be5 Qc8 34. Qg7+ Kc6 35. Be4+ Kc5 36. Qxa7 Bxe1 37. Bc7 $3 Kxc4 38. Bxd8 $8 Qxd8 39. Qxa6+ Kc5 40. f7 $18) 31. dxe5 $2 (31. Qh8+ $2 Kd7 32. Qg7+ Ke8 (32... Ke6 $2 33. d5+ $1 Rxd5 34. cxd5+ Kxd5 35. Qg8+ {RH}) 33. Qg8+ Kd7 $11) (31. g7 $3 {(not considered by RH)} Rxg7 (31... Kd7 32. dxe5) (31... Be6 32. Rxe5) 32. Qxg7 Bxe1 33. Ba3 $8 Qb7 (33... Rd6 34. dxe5) 34. Qf8+ {and mat in 3}) 31... Bxe1 $2 (31... Rxd3 $2 32. g7 Rxg7 33. exf6+ Bxe1 34. fxg7 $18 {RH}) (31... Be6 $8 {(not considered by RH)} 32. Rd1 Kd7 $3 {[#](the bK places itself under the fire of a battery, a la Trifunovic)} 33. Be4+ (33. Bf5+ Kc7 $1) 33... Kc8 (33... Kc7 34. Qh7+ Kc8 35. Rxd8+ Kxd8 36. g7 {idem}) 34. Rxd8+ Kxd8 35. Qh8+ Kc7 $8 36. Qh7+ Kc8 37. g7 Bc5+ 38. Kh1 Rd7 39. Bd5 $1 Kc7 40. exf6 Qg8 41. Be5+ Kc8 42. Qe4 Rxd5 $1 (42... Bxd5 $2 43. cxd5 Rxd5 44. h4) 43. cxd5 Bxd5 44. Qf5+ Be6 {and Black holds}) 32. Qh8+ $8 Kd7 33. Qg7+ $2 {MB is on its his 4th -- at least -- analytical error, not to mention his "live" error of the 25th move. RH, tired, does not comment here.} (33. Qxf6 $1 Kc7 34. e6 $1 $18) ( 33. g7 $1 b5 34. Bf5+ Kc7 35. Qxd8+ Kxd8 36. g8=Q+ Kc7 37. Qf7+ Kb6 38. Bd4+ $8 Ka5 39. Bxa7 $18) (33. e6+ $1 Kc7 (33... Kxe6 34. Qxf6+) 34. Qxf6 $8 Rd6 (34... Rxd3 35. Qf4+ Kb7 36. Qe4+ Kc7 37. Be5+ Rd6 38. Bxd6+ Kxd6 39. Qf4+) (34... Bb4 35. Be5+ $8) 35. Ba3 $3 {[#]} (35. Be5 $2 Bc3 $3 {(curious counter-pin)} 36. Bxc3 Bxe6 $8) (35. Qf7+ $1 Kc6 36. Be4+ $1 Kc5 37. Qf5+ $8) 35... Rxe6 36. Qf4+ $8 Kd8 37. Qxb8 $18) 33... Kc6 $8 34. Qxf6+ Be6 $3 {[#]RH, again becoming more beast.} (34... Kc5 $2 35. Qxd8 Rd7 36. Qf8+ Kc6 37. Be4+ Kc7 38. e6 {RH}) (34... Kc7 $2 {(another mistake)} 35. e6 $1 {Here the analysis of MB ends; we have transposed into 33 e6+ above}) 35. Qxe6+ Kc5 $8 (35... Kc7 $2 36. Ba3 $1) 36. Qf5 (36. Qh3 Rad7) 36... b5 {AH, ruthless -- with good reason -- against MB to the end! MB's performance, the record for the number of errors, would be pulverised, 80 years later, by a certain GK, despite the help of a computer. } 37. e6+ $1 Kb6 38. Ba3 (38. c5+ Ka5 $8 39. g7 Rg8) 38... Rxd3 (38... b4 39. Bc1 Bc3 $8 40. c5+ Ka5 $8 41. Bf4 Bd4+ 42. Kf1 Qc8 43. Bd6 {and Bishop + 4P seem to compensate for the 2 Rooks}) 39. Qxd3 Qf4 $8 40. g3 Qf2+ 41. Kh1 bxc4 ( 41... Rc7 42. Bc1 Kb7 $8 43. Qd5+ Ka7 44. Qd3 $1 Kb7 $1 $11) 42. Qd6+ Ka5 ( 42... Kb7 43. Qd7+ Kb6 $8) 43. Qd5+ Kb6 $8 1/2-1/2 [Event "2#"] [Site "?"] [Date "1898.??.??"] [Round "?"] [White "Slater, G J."] [Black "4478.33"] [Result "1-0"] [SetUp "1"] [FEN "8/1nn4p/2Q2PqP/b5p1/r2kP1N1/2R3N1/1B2p3/3bK3 w - - 0 1"] [PlyCount "1"] [EventDate "1898.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "2#"] [Site "?"] [Date "1955.??.??"] [Round "?"] [White "Tucakov, J."] [Black "0554.25"] [Result "1-0"] [SetUp "1"] [FEN "8/3R4/3pN3/bPpk1K1R/3pnB2/3P2pp/6r1/7B w - - 0 1"] [PlyCount "1"] [EventDate "1955.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "2#"] [Site "?"] [Date "1992.??.??"] [Round "?"] [White "Valuska, J."] [Black "4286.35"] [Result "1-0"] [SetUp "1"] [FEN "5b1q/K2pp3/Q3p3/7p/pP1k1BR1/3P4/Bn1Pb3/4R1n1 w - - 0 1"] [PlyCount "1"] [EventDate "1992.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "2#"] [Site "?"] [Date "1950.??.??"] [Round "?"] [White "Hassberg, E."] [Black "4558.32"] [Result "1-0"] [SetUp "1"] [FEN "b1R3B1/3p4/2q1rn2/RN3Q2/1PkB1n2/Pp6/1P4N1/7K w - - 0 1"] [PlyCount "1"] [EventDate "1950.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "2#"] [Site "?"] [Date "2010.??.??"] [Round "?"] [White "Kupper, J."] [Black "1887.03"] [Result "1-0"] [SetUp "1"] [FEN "8/5R2/3bp1n1/rQ4R1/r3kNp1/4p3/2b5/B1NB1K2 w - - 0 1"] [PlyCount "1"] [EventDate "2010.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "2#"] [Site "?"] [Date "1960.??.??"] [Round "?"] [White "Haring, J."] [Black "1505.03"] [Result "1-0"] [SetUp "1"] [FEN "8/5Q2/R5Nn/4r1p1/3pk3/8/5p2/3R1N1K w - - 0 1"] [PlyCount "1"] [EventDate "1960.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "2#"] [Site "?"] [Date "1933.??.??"] [Round "?"] [White "Van Dijk, J."] [Black "1455.26"] [Result "1-0"] [SetUp "1"] [FEN "2N4K/8/3R2p1/4knQp/2b3pP/1pPp1rp1/1B1N2B1/8 w - - 0 1"] [PlyCount "1"] [EventDate "1933.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "2#"] [Site "?"] [Date "1996.??.??"] [Round "?"] [White "Supp, W."] [Black "4275.34"] [Result "1-0"] [SetUp "1"] [FEN "1Q6/P2pR3/1PpN4/K2kp1nR/Np6/b2BP3/b6q/8 w - - 0 1"] [PlyCount "1"] [EventDate "1996.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "3#"] [Site "?"] [Date "1950.??.??"] [Round "?"] [White "Madsen, A."] [Black "0244.35"] [Result "1-0"] [SetUp "1"] [FEN "2RK3n/5p1p/1BR2P2/3kp3/1P1p4/2p5/4PN2/1b6 w - - 0 1"] [PlyCount "1"] [EventDate "1950.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "3#"] [Site "?"] [Date "1948.??.??"] [Round "?"] [White "Oreshin, A & Ponomarev R"] [Black "1552.33"] [Result "1-0"] [SetUp "1"] [FEN "5Bb1/5B2/8/5pK1/p1PP1RQ1/p1k1r1N1/P6R/2N5 w - - 0 1"] [PlyCount "1"] [EventDate "1948.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "5#"] [Site "?"] [Date "1916.??.??"] [Round "?"] [White "Pauly, W."] [Black "0011.42"] [Result "1-0"] [SetUp "1"] [FEN "8/3N4/1p6/8/1P1kBP2/P1p2K2/2P5/8 w - - 0 1"] [PlyCount "1"] [EventDate "1916.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "6#"] [Site "?"] [Date "1956.??.??"] [Round "?"] [White "Mandler, A."] [Black "0011.13"] [Result "1-0"] [SetUp "1"] [FEN "k7/2pN4/2K5/p2P4/1p6/4B3/8/8 w - - 0 1"] [PlyCount "1"] [EventDate "1956.??.??"] [SourceDate "2000.07.25"] 1. -- 1-0 [Event "h#2 b) bRh6 c) bB d) bN"] [Site "?"] [Date "1956.??.??"] [Round "?"] [White "Wermelinger, C."] [Black "3022.21"] [Result "1-0"] [SetUp "1"] [FEN "8/8/7q/K2BPp2/5P2/1N2k1B1/8/2N5 b - - 0 1"] [PlyCount "1"] [EventDate "1956.??.??"] [SourceDate "2000.07.25"] 1... -- 1-0 [Event "h#3 2 sol"] [Site "?"] [Date "2008.??.??"] [Round "?"] [White "Mladenovic, M."] [Black "3338.02"] [Result "1-0"] [SetUp "1"] [FEN "8/6n1/4p3/3N3N/6kp/4nq1b/6r1/7K b - - 0 1"] [PlyCount "1"] [EventDate "2008.??.??"] [SourceDate "2000.07.25"] 1... -- 1-0 [Event "h#3 2 sol"] [Site "?"] [Date "2013.??.??"] [Round "?"] [White "Kolesnik, M & Semenenko A & V"] [Black "3418.52"] [Result "1-0"] [SetUp "1"] [FEN "8/K4nq1/4PR2/1PP5/p3P1B1/Nk3P2/Np5r/7n b - - 0 1"] [PlyCount "1"] [EventDate "2013.??.??"] [SourceDate "2000.07.25"] 1... -- 1-0 [Event "h#8"] [Site "?"] [Date "2016.??.??"] [Round "?"] [White "Tanner, H."] [Black "0306.15"] [Result "1-0"] [SetUp "1"] [FEN "8/8/2p5/3k1p2/p1n5/P1p5/Kp6/n1r5 b - - 0 1"] [PlyCount "1"] [EventDate "2016.??.??"] [SourceDate "2000.07.25"] 1... -- 1-0 [Event "s#3"] [Site "?"] [Date "2001.??.??"] [Round "?"] [White "Iwanow, E."] [Black "4556.24"] [Result "0-1"] [SetUp "1"] [FEN "2b5/4n2p/1BR1p2P/3Ppk1K/1q2r2Q/4pn2/2B5/5R2 w - - 0 1"] [PlyCount "1"] [EventDate "2001.??.??"] [SourceDate "2000.07.25"] 1. -- 0-1




"non-CB support" diagrams (lanimated fairy)




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