X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=whats_new%2Frules%2FShatranj.html;h=592a9bff2356e88db0642a4a2983a9124dc0bb22;hb=df72269570b1c8a4bdd34319739006d7eebfb5d0;hp=82d02c85ba496fa2ab9071c3b92b49f2c57370fd;hpb=be72e93f24deb4914ca08c698b6c0b536c2961ee;p=xboard.git diff --git a/whats_new/rules/Shatranj.html b/whats_new/rules/Shatranj.html index 82d02c8..592a9bf 100644 --- a/whats_new/rules/Shatranj.html +++ b/whats_new/rules/Shatranj.html @@ -1,364 +1,435 @@ - -

-Shatranj - - -

- -

Shatranj (ancient Arabic/Persian Chess)

- -	- Initial setup - -d1, d8: King - -e1, e8: Ferz (General) - -a1, a8, h1, h8: Rook - -c1, c8, f1, f8: Alfil (Elephant) - -b1, b8, g1, g8: Knight - -a2-h2, a7-h7: Pawns - -

+ + Shatranj + + + + + -

Moves at a Glance

Shatranj (ancient Arabic/Persian Chess)

Click on a piece below to see its moves

+ + + -

+ +

Initial setup

d1, d8: King
+ e1, e8: Ferz (General)
+ a1, a8, h1, h8: Rook
+ c1, c8, f1, f8: Alfil (Elephant)
+ b1, b8, g1, g8: Knight
+ a2-h2, a7-h7: Pawns

- +

Moves at a Glance

- +

Click on a piece below to see its moves

- + + + - - - - - - - - - - - + - + - - - - - - - - - + - + - - - - - - - - - - - + - + - - - - - - - - - - - + - + - - - - - - - - - - - + - + - - - - - - - - - + - + - - - - - - - - - + - + - - - - - - - - - + - + -

Sliding capture or non-capture,
can be blocked on any square along the ray

Sliding capture or non-capture,
+ can be blocked on any square along the ray

-Unblockable leap (capture or non-capture) -

Unblockable leap (capture or non-capture)

-Non-capture only -

-Capture only -

Non-capture only

Capture only

- -

+ -

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:
:
:

- -

-Piece -	-ID -	-value -	-Moves (Betza notation) -	-Remarks -
-King -	-K -	-- -	-K -	-No castling of any kind -
-Ferz -	-Q -	-2 -	-F -	- -
-Rook -	-R -	-8 -	-R -	- -
-Alfil -	-B -	-1 -	-A -	-Bound to 8 squares! -
-Knight -	-N -	-4 -	-N -	- -
-Pawn -	-P -	-1 -	-mfWcfF -	-Promotes to Ferz on reaching last rank -

Pawn peculiarities

Pawns capture differently from how they move (straight move, diagonal capture).
There is no initial double-push, and thus no en-passant capture.
Pawns promote to Ferz when they reach last rank; there is no choice.

General rules

It is not allowed to expose your King to check.
The game is won by checkmating the opponent's King.
Stalemate (no legal moves, but not in check) also counts as a loss for the stalemated side.
If your opponent only has a King at the beginning of your turn, and your king is not yet bare, you win. -This means that after you capture the last piece, the opponent gets one equalizing turn to recapture yours, -in which case it would be a draw.

Differences with FIDE

-The Ferz and Alfil replace the Queen and Bishop. -The Pawn have no double move. -No castling. -The King starts on the e-file. -

Strategy issues

-Because of the baring rule a win is possible with any material other than a bare King. -

-Alfils are not only color bound, but also skip over half the files and ranks. -So they can only reach 8 squares, making them next to worthless. -

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

:
+ :
+ :
+ :

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Piece	ID	value	Moves (Betza notation)	Remarks
King	K	-	K	No castling of any kind
Ferz	Q	2	F
Rook	R	8	R
Alfil	B	1	A	Bound to 8 squares!
Knight	N	4	N
Pawn	P	1	mfWcfF	Promotes to Ferz on reaching last rank

+ +

Pawn peculiarities

+ +

Pawns capture differently from how they move (straight + move, diagonal capture).
There is no initial double-push, and thus no en-passant + capture.
Pawns promote to Ferz when they reach last rank; there is + no choice.

+ +

General rules

+ +

It is not allowed to expose your King to check.
The game is won by checkmating the opponent's King.
Stalemate (no legal moves, but not in check) also counts as + a loss for the stalemated side.
If your opponent only has a King at the beginning of your + turn, and your king is not yet bare, you win. This means that + after you capture the last piece, the opponent gets one + equalizing turn to recapture yours, in which case it would be a + draw.

+ +

Differences with FIDE

+ +

The Ferz and Alfil replace the Queen and Bishop. The Pawn have + no double move. No castling. The King starts on the e-file.

+ +

Strategy issues

+ +

Because of the baring rule a win is possible with any material + other than a bare King.

+ +

Alfils are not only color bound, but also skip over half the + files and ranks. So they can only reach 8 squares, making them + next to worthless.

+ +