Author: Roy Eassa
Date: 11:23:04 11/18/02
Go up one level in this thread
On November 18, 2002 at 14:21:09, Roy Eassa wrote:
>On November 17, 2002 at 14:30:38, Alastair Scott wrote:
>
>>On November 17, 2002 at 13:25:30, Jose Gonzalbez wrote:
>>
>>> Because my CD of Rebel9 doesnt work in my Pentium 4 i finally decided to
>>>buy the last Rebel version, but what can i do with other "historical" programs
>>>like the MChess of Marty Hirsch?. MChess only displays a security error "This
>>>program is not authorized on this disk". Obviously, I changed my PC since I
>>>originally installed MChess a lot of years ago... Is there a way to reinstalled
>>>the program in my new computer?
>>> Other programs that doesnt work in my system (sigh...): Powerchess
>>>(Kittinger's WChess), Rex, Mirage...
>>
>>I have a few old chess programs kicking around; as some of these programs used,
>>in retrospect, highly dubious and fragile copy-protection mechanisms - special
>>sectors written to the hard disk, 'key files' on floppy disk not visible to
>>normal installations of DOS and so on - it's quite possible they will not work
>>on modern machines and OSes. (I can't test as I moved to Linux).
>>
>>Anyway, things move on. I was amused by this post
>>
>>http://www.seanet.com/~brucemo/nolot/nolot1.txt
>>
>>No '... weeks or months ...' now!
>>
>>Alastair
>
(Sorry, added the diagram this time.)
I don't think even today's programs/computers will play Nxh6 and see that White
is winning in a reasonable amount of time.
[d] r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1
I have checked the analysis with Fritz and Shredder, and it is sound:
1.Nxh6! c3!
[1...Rxh6 2.Nxd6! Qh5
(2...Qxe1+ 3.Qxe1 Rxd6 4.Qe4! Rh6 5.Bc1! Rh5 6.Rg5! Rh6 7.Rf5! +-)
3.Rg5 Qxd1 4.Nf7+ Kg8 5.Nxh6+ Kh8 6.Rxd1 c3 7.Nf7+ Kg8 8.Bg6! Nf4
9.Bxc3 Nxg6 10.Bxb4 Kxf7 11.Rd7+ Kf6 12.Rxg6+ Kxg6 13.Rxb7 +-]
2.Nf5! cxb2 3.Qg4! Rf6
[3...Bc8 4.Qh4+ Rh6 5.Nxh6 gxh6 6.Kh2! Qe7
(6...Qe5 7.Ng5 +-)
7.Ng5 Qf6 8.Re8 +-]
[3...g6 4.Kh2! Qd7 5.Nh4 Bc6 6.Nc5 Nf6
(6...dxc5 7.Rxe6 +-)
7.Nxg6+ Kg8 8.Qg5 +-]
[3...Qd7 4.Kh2! Rh6
(4...Kg8 5.Nh6+ Kh8 6.Ng5 gxh6 7.Rxe6 hxg5
(7...Nf6 8.Nf7+ Qxf7 9.Rxf6 forces mate)
8.Qh5+ Kg8 9.Rxg5+ Bg7 10.Bh7+ Kf8 11.Rf5+ Nf6 12.Rfxf6+ Bxf6
13.Qh6+ Bg7 14.Qf4+ and mates)
5.Nxh6 Qxg4 6.Nf7+ Kg8 7.Rxg4 Be7 8.Nfxd6 +-]
4.Qh4+ Rh6 5.Nxh6 gxh6 6.Kh2 Qd7 7.Ng5 Nf6
[7...Bg7 8.Re6 +-]
8.Ne6 Qf7 9.Nxf8 Qxf8 10.Rg6 Nbd5 11.Rxh6+ Kg8 12.Qg5+ Qg7 13.Rg6 +-
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