From: Sylvain Ferrieres <ferriere <at> CLIPPER <dot> ENS <dot> FR>
Date: 8 oct 2002
Subject: 2 piece joseki problem..

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Hello everybody,

I'm a kyu player and I try to learn the 2 piece handicap joseki, clearly
explained by L. Kaufmann (thank you !), on Eric Cheymol's page:
http://echeymol.free.fr

I have questions on the third variation :

1.  ...  S6b      11. Rx3d P'3c
2.  P7f  P5d      12. R3f  K6c
3.  P4f  S5c      13. N3g  G7c
4.  P4e  G3b      14. G7h  P6e
5.  S4h  K5b      15. K6i  G6d
6.  S4g  G6b      16. G5h  N7c
7.  P3f  P7d      17. S6h  P8d
8.  P3e  S2b      18. P9f  P9d
9.  R3h  P6d      19. S4f  P8e
10. P3d  Px3d     20. P5f  L1b
        21. S3e

And this variation goes..

21. ...  S4b
22. R4f  S23a
23. P4d  Px4d
24. Bx4d K7b
25. N4e  P'4c
26. B5c+ Sx5c
27. Nx5c+

And now, L.Kaufmann gives 27. .. B'7a as this pins the promoted knight and
attack it, so after 28. S'6b Bx6b
                    29. +Nx6b  Kx6b
                    30. B'8b      the king looks safer and the mate seems
very long to reach. I agree and this seems to be an effective defense. But
why do white have to render the bishop ?

What about 27. ... B'2h ? attacking the rook with sente (black cannot keep
attacking only with the promoted knight and the silver in hand) and aiming
to retreat as a horse on 6d, even at the cost of a gold against the
promoted knight: the silver on 3b and the horse on 6d are guarding all the
promoted area of the rook, keeping in mind a horse is worth 3 generals..!

So I'll try to propose some "convincing" variations (I mean convincing for
me):

First I think the rook should retreat in 4i, because on 4h the bishop
would go on 3g attacking the rook again..

28. R4i   G6c
29. +Nx4c B6d+
30. +Nx3b Sx3b

As if 30. S'4a  G4b  and 30. +N5b S4b and this will take time to break in.

31. S'4a  N'4c (or 31. G'4b)

Because 31. S'4c  Sx4c
        32. Rx4c+ S'4b and the dragon has to come back or enferming itself
on 3b.

32. Sx3b=  Nx3e

On 32. S4d   Sx4a
   33. Sx4c+ S'5b and the exchanges may favor the defender..

So the rook can enter the 4th file's promoting area but white has perhapps
a counter-attack on 4g and a good defender as the horse... not so easy to
win.. isn't it ?

Sylvain Ferrieres.

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