Search found 149 matches

by marste
Fri Mar 30, 2018 10:27 pm
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

Stefano let me be the first to say all your work on this is fantastic. :ugeek: One thing to bare in mind is that humans make illogical moves unlike computers so the results of ZX81 v ZX80 are not really fair. When up against a human opponent the results are far different to the cold logic of anothe...
by marste
Fri Mar 30, 2018 10:24 pm
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

For the record here also the Superchess game
by marste
Fri Mar 30, 2018 9:58 pm
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

I was trying to follow the first game moves and make a pgn but I found some illegal ones and even "interpreting" what the move could be at the end probably I did something wrong and the result is not complete... So I decided to do a test myself (before seeing the 9 move shame game! :( ). Spectrum Ch...
by marste
Thu Mar 29, 2018 4:06 pm
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

"This program is winner of the Second European Microcomputer Chess Championship. The 48K side has more sophisticated options such as altering the colours of board and pieces, printouts and game saving. Cursor keys movement allows you to analyse a move or take the piece back. Illegal moves are buzzed...
by marste
Thu Mar 29, 2018 3:32 pm
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

Good! :) Even with the "not mirrored" version try to play black (meaning the color at the bottom of the screen) with ZX80 against a Spectrum playing white. As said even without initial logic might play a bit better (moving pawns instead of wasting moves with the tower until something interesting hap...
by marste
Thu Mar 29, 2018 9:52 am
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

Yes I mirrored not rotate, sorry!! :(

Good you can rotate the Spectrum at least (the changes for rotation are not difficult but spread in various part of the code and so not a quick upgrade)!
by marste
Wed Mar 28, 2018 7:37 pm
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

I also saw the final mate move refusal behaviour and I've to investigate in it. 72 moves was not an easy win, but with such time disparity I was hoping better. Seems I should probably do something to improve pawn promotion evaluation... Did you spot other "strange" moves? Can you post the log in the...
by marste
Wed Mar 28, 2018 1:15 pm
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

Try to make the thinking time between the two engines similar if possible! :)
(30sec move as a mean should be good on ZX80/81)

Really curious to see the next game! :)

Thank you!!
_Stefano
by marste
Wed Mar 28, 2018 1:08 am
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

PS: if the opponent engine make use of a movebook, in order to level the playing field you can manually setup the starting position to the end of some known opening, and let play both engines once as black and onche as white! here some examples: http://www.mark-weeks.com/aboutcom/aa05l17.htm https:/...
by marste
Wed Mar 28, 2018 12:37 am
Forum: Development
Topic: 1K Real Chess for ZX80
Replies: 92
Views: 21990

Re: 1K Real Chess for ZX80

Yes, I think that the problem was about the strange ROM, since I never saw such behaviour. Regarding the board orientation is not an easy thing since various logic about pawn and castling etc, but I'll put in the todo list. What anyway I can do now is providing a version in which the black is starti...