Search found 17956 matches

by hgm
Thu Nov 14, 2019 12:04 pm
Forum: Computer Chess Club: General Topics
Topic: Winboard and chess variant
Replies: 15
Views: 767

Re: Winboard and chess variant

Problem could be that it also triggers a promotion procedure (popup or detour under-promotion) when it reaches the last rank, which could be undesirable. (Detour under-promotion can be 'disguised', though, by having the engine send a 'choice' command in response to the 'lift' that only allows the La...
by hgm
Wed Nov 13, 2019 9:59 pm
Forum: Computer Chess Club: General Topics
Topic: Winboard and chess variant
Replies: 15
Views: 767

Re: Winboard and chess variant

I uploaded a new version of WinBoard-AA again. This implements the 'e' modifier in non-final legs as described above, so that it can now both used to generate e.p. rights as well as for cashing them. For now there is a restriction that there can only be a single e.p. square. (That is all WinBoard ke...
by hgm
Wed Nov 13, 2019 10:02 am
Forum: Computer Chess Club: General Topics
Topic: Winboard and chess variant
Replies: 15
Views: 767

Re: Winboard and chess variant

The Lance is also treated as a Pawn-like piece, in the sense that it promotes on last rank, resets the ply counter and generates e.p. rights when advancing more than one rank. At least in most variants. (In Spartan Chess it the generation of e.p. rights is suppressed, as this variant has no e.p. cap...
by hgm
Tue Nov 12, 2019 4:42 pm
Forum: Computer Chess Club: General Topics
Topic: Winboard and chess variant
Replies: 15
Views: 767

Re: Winboard and chess variant

Yeah, the highlight protocol is quite versatile in guiding the GUI what to do; it gives the engine complete control over what moves it wants to allow and which not, no matter how complex the rules. There are also colors for forcing a promotion popup (magenta) or an unconditional promotion (blue). Ma...
by hgm
Tue Nov 12, 2019 2:11 pm
Forum: Computer Chess Club: General Topics
Topic: Winboard and chess variant
Replies: 15
Views: 767

Re: Winboard and chess variant

So far so good. And then you press d6 (red) to complete the move. This should then perform the 2-leg move e5xc5-d6. WinBoard does not have 'auto-complete' that executes a move when only a single target square is left for the currently selected piece.
by hgm
Tue Nov 12, 2019 10:10 am
Forum: Computer Chess Club: General Topics
Topic: 50 move counter in FEN and GUIs
Replies: 2
Views: 322

Re: 50 move counter in FEN and GUIs

In WinBoard it matters. E.g. pasting a FEN = "4k3/8/8/8/8/8/8/R3K3 w Q - 90 1" with Stockfish-Variant as analysis engine gives 20 0.00 217877 0:00.14 1. Ra7 Kd8 2. Kf2 Ke8 3. Kg3 Kd8 4. Ra3 Kd7 5. Ra1 Ke6 19 0.00 199181 0:00.13 1. Ra7 Kd8 2. Kf2 Ke8 3. Kg3 Kd8 4. Ra3 Kd7 5. Ra1 Ke6 18 0.00 184347 0:...
by hgm
Mon Nov 11, 2019 5:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: XBoard GTK
Replies: 14
Views: 926

Re: XBoard GTK

Not sure about this sharedlib stuff. If you can execute it it seems to me it is by definition an executable, and the identification of MIME types on your system is somehow messed up. Executables normally do not have icons associated with them in Linux. You are not normally expected to see them; no o...
by hgm
Mon Nov 11, 2019 5:07 pm
Forum: Computer Chess Club: General Topics
Topic: Winboard and chess variant
Replies: 15
Views: 767

Re: Winboard and chess variant

Turns out that the WinBoard beta version (unlike 4.8) at least already always removed the correct Pawn (the one that last moved). I now uploaded (to http://hgm.nubati.net/WinBoard-AA.zip ) a version that calculates the e.p. square after a Pawn multi-push in a more sensible way (so that for a move to...
by hgm
Sun Nov 10, 2019 4:45 pm
Forum: Computer Chess Club: General Topics
Topic: Winboard and chess variant
Replies: 15
Views: 767

Re: Winboard and chess variant

I just tried ifmnN in a piece command, but it does not have the desired effect. For one, it always assigns the left-most intermediate square as e.p. square (so c6 after c7-d5, but b6 after c7-b5), and highlights that when you select a suitable Pawn (b5 or c5, respectively) as capture on the next mov...
by hgm
Sun Nov 10, 2019 4:26 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney November
Replies: 29
Views: 1302

Re: On-line engine blitz tourney November

I am not sure they were logged on.