Is this study correct ?

Kasparián G.
2 ième prix Schachmaty v SSSR 1948
White wins

Position :

White :
King b3
Knight b7
Bishop g2
Pawns a2,c5

Black :
King c8
Knight d7
Bishop h4
Pawns a7,a6 and c7


1.c6 Nb6 2.Bh3+ Kb8 3.Nc5 Bg3 4.Nxa6+ Ka8 5.a4 Bf4 6.a5 Bg3 7.axb6 axb6 I
do'nt see how to win neither Fritz !

JMR wrote:

Is this study correct ?
[...]

1.c6 Nb6 2.Bh3+ Kb8 3.Nc5 Bg3 4.Nxa6+ Ka8 5.a4 Bf4 6.a5 Bg3 7.axb6 axb6

According to Roycroft's Kasparyan collection, the last move specified
in this line is 6. a5.

--
Anders Thulin http://www.algonet.se/~ath

Is this study correct ?
Kasparián G.
2 ième prix Schachmaty v SSSR 1948
2k5/pNpn4/p7/2P5/7b/1K6/P5B1/8 w - - 0 1
1.c6 Nb6 2.Bh3+ Kb8 3.Nc5 Bg3 4.Nxa6+ Ka8 5.a4 Bf4 6.a5 Bg3 7.axb6 axb6 I
I afraid not, after 1 ... Ne5 there's a draw.

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Kasparián"]
[Black "2 ième prix Schachmaty v SSSR"]
[Result "1-0"]
[Annotator "JMRW,JMR"]
[SetUp "1"]
[FEN "2k5/pNpn4/p7/2P5/7b/1K6/P5B1/8 w - - 0 1"]
[PlyCount "35"]
[SourceDate "2003.06.14"]

{2ieme prix Schachmaty v SSSR
Kasparian
Gain Blanc
} 1. c6 Ne5 (1... Nb6 2.
Bh3+ Kb8 3. Nc5 Bg3 4. Nxa6+ Ka8 5. a4 Bf4 6. a5 {La s'arretent les
commentaires de Kasparian. Mais pour un joeur moyen de meme que pour Fritz,
ce
n'est pas evident a gagner. } Bg3 (6... Nd5 7. Bc8 Ne3 8. Bb7#) 7. axb6
axb6
8. Bf1 b5 (8... Ka7 9. Bb5 Be5 10. Kc4 Bf4 11. Kd5 Bg3 12. Ke6 Bf4 13. Kd7
Bg3
14. Nxc7 $18) 9. Kb4 Ka7 10. Kxb5 Bf4 11. Kc5 {
Le Roi se dirige vers la meilleure place c8
} Bd6+ 12. Kd5 Kb6 13. Nb8 Bf4 14.
Nd7+ Ka7 15. Ke6 Bg5 16. Nf8 Bf4 17. Kd7 Bd6 18. Ne6 Kb8 19. Bg2 Bh2 20. Nc5
Ka7 21. Kc8 Bg3 22. Nd7 Bh2 23. Bh3 Ka6 24. Nf6 Kb6 25. Bd7 Be5 26. Nd5+ Kc5
27. Nxc7 $18) 2. Bh3+ Kb8 3. Nc5 Nxc6 (3... Bd8 $143 4. Nxa6+ Ka8 5. Be6
Nxc6 (
5... Bh4 6. Nxc7+ Kb8 7. Na6+ Ka8 8. Bd5 Bf6 9. c7+ Nc6 10. c8=Q#) 6. Bd5
Kb7
7. Nb4 Kb6 8. Nxc6 $18) 4. Nd7+ Kb7 5. Bg2 Bg3 6. Kc4 $1 {Pour capturer le
Cavalier noir cloue il faut placer le Roi blanc en d7. Il faut pour cela
d'abord transferer le cavalier blanc de d7 en a4, ou il aura le meme pouvoir
qu'actuellement. Mais la manoeuvre directe 6.Cc5+ Rb6 7.Ca4+ est contree par
7.
....Rb5! C'est pour empecher ce coup qu'on joue auparavant Rc4 } a5 7. Nc5+
Kb6 8. Na4+ Kb7 9. Kd3 Bf2 10. Ke2 Bg1 11. Bd5 a6 12. Kf3 Bd4 13. Kf4 Ba7
14.
Ke4 Bg1 15. Kf5 Ba7 16. Ke6 Bb8 17. Kd7 Ba7 18. Bxc6+ $18 1-0

"Brice Allenbrand" a écrit dans le message de
...
Is this study correct ?
Kasparián G.
2 ième prix Schachmaty v SSSR 1948
2k5/pNpn4/p7/2P5/7b/1K6/P5B1/8 w - - 0 1
1.c6 Nb6 2.Bh3+ Kb8 3.Nc5 Bg3 4.Nxa6+ Ka8 5.a4 Bf4 6.a5 Bg3 7.axb6 axb6
I
I afraid not, after 1 ... Ne5 there's a draw.

Brice Allenbrand wrote:

I afraid not, after 1 ... Ne5 there's a draw.

A bit unspecific. 1. ... Ne5 is the main line of this endgame study. According to
van der Heijden's endgame database:

1.c6! Ne5! 2.Bh3+ Kb8 3.Nc5! Nxc6 4.Nd7+ Kb7 5.Bg2 Bg3 6.Kc4 a5! 7.Nc5+ Kb6 8.Na4+ Kb7 9.Kd3! Bf2 10.Ke2!!
Bg1 11.Bd5! a6 12.Kf3 Bd4 13.Kf4!! Ba7 14.Ke4!! Bb8 15.Nc5+ Kb6 16.Nd7+ Kb5 17.a4+ Kxa4 18.Bxc6+ Kb3 19.Nxb8 1-0

Where is the draw?

Anyway, the original question was about another line, but at a point which
appeared to be beyond what the author had gone.

--
Anders Thulin http://www.algonet.se/~ath