[Event "Leningrad-ch26"]
[Site "Leningrad"]
[Date "1953.??.??"]
[Round "?"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Cherepkov, Alexander V"]
[Result "1-0"]
[ECO "A34"]
[Annotator "Reeh, Oliver"]
[PlyCount "57"]
[EventDate "1953.??.??"]
[EventType "tourn"]
[EventCountry "URS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Leningrad"]
[BlackTeam "Moscow"]
[WhiteTeamCountry "URS"]
[BlackTeamCountry "URS"]
{[%evp 0,57,24,6,11,0,16,23,77,87,87,72,96,36,7,-6,70,68,74,55,55,55,76,12,12,
22,102,78,78,76,76,317,412,378,396,445,184,656,641,659,375,49,0,0,0,0,0,0,0,38,
51,-17,189,500,500,505,449,538,1282,1301]} 1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4.
cxd5 Nxd5 5. d4 g6 6. Nxd5 Qxd5 {START QQ} 7. Qc2 {[%CAl Ge2e4] VK's novelty!
VK's Neuerung!} Nc6 (7... Bf5 $5 8. Qxc5 Qxc5 9. dxc5 Bg7 $44 {[%csl Ga1,Gb2,
Gc1,Gc5,Rf5,Rg7][%CAl Gb8a6]}) (7... cxd4 $4 8. Qxc8+ $18) {[%tqu "En","","",
"","e2e4","",10,"c2c5","",0,"d4c5","",0]} 8. e4 $1 (8. Qxc5 Qxc5 9. dxc5 Nb4
$11) (8. dxc5 Bf5) 8... Nxd4 9. Nxd4 (9. exd5 Nxc2+ $19) 9... Qxd4 {[%tqu "En",
"","","","c1d2","",10] QQ} 10. Bd2 $1 {[%CAl Ga1d1,Rd1d8,Gd2c3,Rc3h8]} Qd6 11.
Bc3 f6 12. Qb3 {[%CAl Gb3b7,Gb3g8]} (12. Bb5+ $5) (12. Rd1) 12... e5 13. Rd1
$32 Qb6 {QQ Which check? Welches Schach?} 14. Qa4+ $1 (14. Bb5+ Ke7 15. O-O (
15. f4)) 14... Kf7 (14... Ke7 {is followed by the same. zieht Gleiches nach
sich.}) (14... Bd7 $4 15. Qxd7#) {[%tqu "En","","","","c3a5","",10,"f1c4","",0]
QQ} 15. Ba5 $1 (15. Bc4+ Be6 16. Qd7+ (16. Rd7+ Be7) 16... Be7 $11 {[%csl Rd8]
[%CAl Ga8d8,Gh8d8]}) 15... Qxb2 (15... Qc6 {[%tqu "En","","","","f1b5","",10,
"f1c4","",0]} 16. Bb5 $18 {[%csl Gc6][%CAl Gc6e6,Gb5c4,Rc4f7]} (16. Bc4+ $2 Kg7
)) 16. Bc4+ {Now! Jetzt!} Kg7 (16... Be6 17. Qd7+ $18 {[%CAl Rd7e6,Rc4e6,Gf7e6]
}) {[%tqu "En","","","","a4e8","",10,"d1d7","",0] QQ} 17. Qe8 $18 {[%CAl Ge8f7]
} (17. Rd7+ Kh6 $1 (17... Bxd7 18. Qxd7+ Kh6 19. Bd2+ g5)) 17... Bg4 18. Qf7+
Kh6 19. Bd2+ Kh5 20. Qxf6 (20. f3) 20... Bh6 21. f3 Bxd2+ 22. Rxd2 Qc1+ 23. Rd1
Qc3+ 24. Kf2 Qxc4 25. fxg4+ Kh6 26. Qh4+ Kg7 27. Rd7+ Kg8 28. Qf6 {[%CAl Gf6g7]
} Qc2+ 29. Kg3 1-0
[Event "Xtracon Open 2018"]
[Site "Helsingor"]
[Date "2018.07.25"]
[Round "6"]
[White "Salles, Louis"]
[Black "Ni, Shiqun"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2227"]
[BlackElo "2435"]
[Annotator "Reeh,Oliver"]
[PlyCount "63"]
[EventDate "2018.??.??"]
[SourceVersionDate "2021.09.11"]
{[%evp 0,63,30,20,20,-3,16,22,-3,-13,-10,-10,24,-46,-56,-46,-27,-38,-37,-10,
-10,-18,9,-7,-23,-46,-49,-49,-53,-54,-56,-53,-36,-38,19,-200,158,180,231,156,
163,112,113,32,32,40,40,-73,-53,-63,-61,0,0,0,59,128,470,549,548,583,29995,
29996,29997,29998,29999,-30000]} 1. Nf3 d5 2. c4 d4 3. b4 f6 4. e3 e5 5. c5 a5
6. Qa4+ Bd7 7. b5 dxe3 8. fxe3 Bxc5 9. Bc4 Nh6 10. Nc3 Bf5 11. Nd5 Nd7 12. O-O
Nb6 13. Nxb6 Bxb6 14. Ba3 Qd7 15. Qb3 Bg6 16. d4 Bf7 17. Nxe5 Bxc4 18. Nxc4 Nf5
19. Rac1 Ne7 20. Rf4 a4 21. Qb4 Nd5 22. Re4+ Kf7 {[%tqu "En","~/=?1/
2?_|??=BQ?,"","","c4e5","Ripping open the f-file - after 23...fxe5 24.Rf1+
Black's king must go to g6 . Why does (24...Kf8 fail?",1,"De","Das
Springeropfer 23.Ne5+! fxe5 24.Rf1+ gibt Wei?starken Angriff. ?erlegen Sie
in Ruhe, wie es nach 24..Kg8 und vor allem 24...Kg6 weitergehen soll. Wenn
Sie soweit sind, f?ren Sie bitte 23.Ne5+! aus.","","","c4e5","Rei? die
f-Linie auf - nach 23...fxe5 24.Rf1+ muss der schwarze K?ig nach g6 . Woran
scheitert(24...Kf8?",1]} 23. Ne5+ $1 {[%CAl Re5d7,Re5f7]} fxe5 24. Rf1+ {
[%CAl Gf7g6,Gf7e6,Gf7g8,Gd5f6,Gf7e8]} Kg6 {[%csl Rg4][%CAl Gd7g4]} (24... Kg8 {
[%tqu "En","Just checking - why couldn't Black's king retreat to g8?","","",
"b4f8","... followed by 25...Rxf8 26.Rxf8++.",1,"f1f8","... followed by 25...
Rxf8 26.Qxf8++.",1,"De","Nur zur Kontrolle - warum durfte der schwarze K?ig
nicht zur?k nach g8?","","","b4f8","... nebst 25...Rxf8 26.Rxf8++.",1,"f1f8",
"... nebst 25...Rxf8 26.Qxf8++.",1]} 25. Qf8+ {[%csl Gf8,Rg8][%CAl Gf1f8,Ga3f8,
Ya8f8]} (25. Rf8+ {????} Rxf8 26. Qxf8#) 25... Rxf8 26. Rxf8#) (24...
Nf6 25. dxe5 $18 {[%csl Rf6][%CAl Re5f6,Rf1f7]}) (24... Ke6 25. Rxe5#) (24...
Ke8 {[%CAl Gb4f8,Gf1f8]} 25. Qf8+ (25. Rf8+ Rxf8 26. Qxf8#) 25... Rxf8 26.
Rxf8#) {[%tqu "En","Black's king has gone to g6. What now?","","","b4b1","The
key move! White's queen retreats to the back rank, targeting the black king
on the diagonal b1-g6.",2,"De","Der schwarze K?ig ist nach g6 gegangen. Was
nun?","","","b4b1","Der Schl?selzug! Die wei? Dame zieht auf die Grundreihe
zur?k und nimmt den schwarzen K?ig auf der Diagonalen b1-g6 aufs Korn.",2]}
25. Qb1 $1 {[%csl Rb1][%CAl Ge4g4,Rg4g6,Rb1g6]} Nc3 {[%CAl Gc3b1,Gc3e4]} (25...
Rae8 26. Rg4+ {[%CAl Gg4g6,Gb1g6]} (26. Rxe5+ $2 Kh6 $17) 26... Kh6 27. Rh4+
Kg5 28. Rxh7 $18 {[%CAl Gh2h4]} {Stockfish dev-20230128-e4e61cd9:} e4 {[%csl
Re4] ????} ({Stockfish dev-20230128-e4e61cd9:} 28... Rxh7 29. Qxh7 Qe6
{[%tqu "En","","","","h2h4","",1]} 30. h4+ Kg4 31. Qxg7+ Kxh4 32. Rf3 {[%CAl
Gf3h3]} Rg8 33. Rh3+ Qxh3 34. Qh6+ Kg4 35. Qxh3+ Kg5 36. Qg3+ Kf6 37. Qxe5+ Kg6
38. Qxd5 $18) 29. h4+ Kg6 30. Rxh8 Nf6 (30... Rxh8 $6 {Stockfish
dev-20230128-e4e61cd9:} 31. Qxe4+ Kh6 32. Bf8 {[%CAl Gf1f6,Rf8h6]} Ba5 33. Rf5
{[%CAl Rf5d5]} Qxf5 34. Qxf5 Rxf8 35. Qxf8 Nf6 36. Qc8 b6 37. Qxc7 $18) 31.
Rxe8 Qxe8 32. Qe1 $18) {[%tqu "En","Which continuation leads to victory for
White? A) 26.Qc2 Nxe4 27.Qxe4+ Kh6 28.Qh4+ Kg6 B) 26.Rg4+ Kh5 27.Rf5+ Kh6
Take your time to think and then play the move of your choice: 26.Qc2 or 26.
Rg4+","","","b1c2","Calculation, intuition, or both? Anyway, you are
absolutely right!",5,"e4g4","This (very attractive!) double check only leads
to a perpetual. See variation.",0,"b1d3","",0,"De","Welche Fortsetzung f?rt
zum Gewinn f? Wei? A) 26.Qc2 Nxe4 27.Qxe4+ Kh6 28.Qh4+ Kg6 B) 26.Rg4+ Kh5
27.Rf5+ Kh6 ?erlegen Sie in Ruhe, und spielen Sie dann den Zug Ihrer Wahl:
26.Qc2 oder 26.Rg4+","","","b1c2","Berechnung, Intuition, oder beides? Auf
jeden Fall goldrichtig!",5,"e4g4","Dieses (sehr attraktive!) Doppelschach
f?rt letztlich nur zum Dauerschach. Siehe Variante.",0,"b1d3","",0]} 26. Qc2
$3 (26. Rg4+ $2 {[%CAl Gg6h6,Gg6h5,Rg4g6,Rb1g6] could lead to a typical
computer perpetual: könnte zum einem typischen Computer-Dauerschach führen:}
Kh5 $1 (26... Kh6 $2 27. Rh4+ Kg5 {[%tqu "En","How can White force checkmate?",
"White's queen needs a square to give check.","","a3e7","Protecting the Rh4
from behind and deflecting Black's queen.",2,"De","Wie erzwingt Wei?das
Matt?","Wie erzwingt Wei?das Matt?","","a3e7","Deckt den Rh4 von hinten und
lenkt die schwarze Dame ab.",2]} 28. Be7+ {[%csl Ge7][%CAl Ge7h4,Yd7e7,Gd7f5,
Rb1f5]
?????,????h4?,???????f5????!?
???????????????4??????????????5??????????
??????????????h4??????????????5??????????
????,????h4?,???????f5????!??
?????????????h4??????????????5???????????
?????????????4??????????????5????????????
???,????h4?,???????f5????!???
????????????4??????????????5?????????????
???????????h4??????????????5?????????????
??,????h4?,???????f5????!????
??????????h4??????????????5??????????????
??????????4??????????????5???????????????
?,????h4?,???????f5????!?????
?????????4??????????????5????????????????
????????h4??????????????5????????????????
,????h4?,???????f5????!??????
???????h4??????????????5?????????????????
???????4??????????????5??????????????????
????h4?,???????f5????!???????
??????4??????????????5??????????????????f
?????h4??????????????5??????????????????f5
???h4?,???????f5????!???????f5?
????h4??????????????5??????????????????f5?
????4??????????????5??????????????????f5??
??h4?,???????f5????!???????f5??
???4??????????????5??????????????????f5???
??h4??????????????5??????????????????f5???
?h4?,???????f5????!???????f5???
?h4??????????????5??????????????????f5????
?4??????????????5??????????????????f5?????
h4?,???????f5????!???????f5????
4?,???????f5????!???????f5????
?,???????f5????!???????f5???!
} Qxe7 {[%tqu "En","Continuation?","","","b1f5","This square is not controlled
by Black's queen anymore!",1,"De","Fortsetzung?","","","b1f5","Dieses Feld
wird ja nicht mehr von der schwarzen Dame kontrolliert!",1]} 29. Qf5+ Kxh4 {
[%tqu "En","Finale!","","","g2g3","Checkmate!",1,"De","Finale!","","","g2g3",
"Schachmatt!",1]} 30. g3# {[%csl Gg3,Rh4][%CAl Gg3h4,Gf5h5,Gf5h3]}) 27. Rf5+
Kh6 $1 (27... Kxg4 28. h3+ Kg3 29. Qe1#) 28. Rh4+ Kg6 {[%CAl Gc3b1,Gd7f5]} 29.
Rg4+ Kh6 $11) 26... Nxe4 27. Qxe4+ {[%csl Ga3,Ge4,Gf1][%CAl Ge4g6]} Kh6 (27...
Kg5 28. Qxe5+ Kh6 29. Be7 $18 {Stockfish dev-20230128-e4e61cd9:} Qxe7 (29...
Qg4 {Stockfish dev-20230128-e4e61cd9:} 30. h3 Qh5 31. Rf5 g5 32. Bxg5+ Qxg5 33.
Rxg5 Bxd4 34. exd4 Rag8 35. h4 a3 36. Qf6+ Rg6 37. Rxg6+ hxg6 38. Qxh8# {
[%eval 32750,24]}) 30. Qxe7 Raf8 31. Rxf8 Rxf8 32. Qxf8 Bc5 33. dxc5 Kg5 34.
Qf4+ Kh5 35. Qf5+ Kh6 36. g4 g6 37. Qf6 a3 38. h4 c6 39. Qf8# {[%eval 32748,
100]}) 28. Qh4+ Kg6 {[%tqu "En","This is the position to be foreseen three
moves ago. White to play and win.","","","a3e7","Correct! White threatens 30.
Qg5++, so Black must clear escape squares for the king with 29...h5.",3,"De",
"Dies ist die Stellung, die es drei Z?e zuvor zu berechnen galt. Wei?zieht
und gewinnt.","","","a3e7","Richtig! Wei?droht 30.Qg5++, daher muss Schwarz
mit 29...h5 R?kzugsfelder f? den K?ig freimachen.",3]} 29. Be7 $1 {[%csl
Gg5,Rg6][%CAl Gh4g5]} h5 (29... h6 30. Qe4+ {[%CAl Re4h7]} Kh5 31. Rf5+ g5 32.
g4+ Kh4 (32... Kg6 33. Rf6+ Kg7 34. Qg6#) 33. Qf3 $18 {[%csl Rh4][%CAl Gf3g3]})
{[%tqu "En","Best check for White?","","","h4g5","Yep - this leads to mate in
3!",2,"De","Bestes Schach f? Wei?","","","h4g5","Genau - dies f?rt zu Matt
in 3!",2]} 30. Qg5+ (30. Rf6+ gxf6 31. Qxf6+ Kh7 32. Qf7+ Kh6 {is not enough.
reicht nicht aus.}) 30... Kh7 {[%tqu "En","Which continuation forces checkmate
on the next move?","","","f1f7","Threatening 31.Rxg7++ or 31.Qxg7++ , and 30...
Rhg8 is followed by 31.Qxh5++. Black resigned!",1,"De","Nach welcher
Fortsetzung wird Schwarz im n?hsten Zug schachmatt?","","","f1f7","Droht 31.
Rxg7++ oder 31.Qxg7++ - und nach 30...Rhg8 folgt 31.Qxh5++. Schwarz gab auf!",
1]} 31. Rf7 {[%csl Gg7][%CAl Gf7g7,Gg5g7] and Black resigned in view of und
Schwarz gab auf angesichts von} Qg4 (31... Rag8 32. Qxh5# {[%csl Rh7][%CAl
Gh5h7]}) (31... Rhg8 32. Qxh5#) 32. Rxg7# {[%csl Gg7,Rh7]} 1-0
[Event "Tata Steel Challengers"]
[Site "Wijk aan Zee NED"]
[Date "2023.01.17"]
[Round "4.2"]
[White "Ivic, Velimir"]
[Black "Vaishali, Rameshbabu"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2585"]
[BlackElo "2425"]
[Annotator "3700"]
[SetUp "1"]
[FEN "1r6/3p4/1r1Pp3/p1p1PpPk/2P2P1p/PP3K2/1R6/1R6 w - - 0 35"]
[PlyCount "25"]
[EventDate "2023.01.14"]
[SourceVersionDate "2021.09.11"]
{[%tqu "En","3/4?=??1/2?=/+???/-?_|_-/+<>_|?1/
2>=B>>~~>
