Author: Dan Ellwein
Date: 00:08:52 03/03/00
was reading through the posts ( as my usual habit of late) and in one of the
posts someone made the comment about the sheer complexity of chess...
that got me thinking (can be dangerous, i know... :)) about the subtle
interaction of the movement of the pieces...
i came up with a list of 32 distinct movements in chess...
wanted to bounce this off of the group and see if this (if only somewhat)
reflected some of that complexity there is in chess...
Movement Moves
(One Side)
1 a1 [K] = 420
2 b1 [B1] = 98
3 b1 [B2] = 98
4 c1 [QR] = 644 (Q:420 R:224)
5 f1 [P] = 40
6 g1 [P] = 56
7 h1 [P] = 14
8 i1 [P] = 22
9 b2 [B1] = 72
10 b2 [B2] = 72
11 c2 [QR] = 528 (Q:336 R:192)
12 c2 [N] = 336
13 d2 [K] = 1
14 d2 [R2] = 0
15 e2 [K] = 1
16 f2 [P] = 8
17 b3 [B1] = 50
18 b3 [B2] = 50
19 c3 [QR] = 420 (Q:260 R:160)
20 e3 [R1] = 0
21 b4 [B1] = 32
22 b4 [B2] = 32
23 c4 [QR] = 320 (Q:192 R:128)
24 b5 [B1] = 18
25 b5 [B2] = 18
26 c5 [QR] = 228 (Q:132 R:96)
27 b6 [B1] = 8
28 b6 [B2] = 8
29 c6 [QR] = 144 (Q:80 R:64)
30 b7 [B1] = 2
31 b7 [B2] = 2
32 c7 [QR] = 68 (Q:36 R:32)
Moves: 3,810
Explanation of Code
Column 1: number of movements in chess - 32
Column 2: a1 - c7
a b c are noncapture/capture movements (K,Q,R,B,N)
d e f are noncapture only movements (Castle and P)
g h are capture only movements (P - includes en-passant)
i is a noncapture only/capture only movement (P - pawn promotion)
1 - 7 is the length (in number of squares) a piece moves on the board
a1
noncapture/capture movement with restriction; length of movement 1 square
restriction
cannot be adjacent to opposing piece of like movement
cannot move to a square controlled by an opposing piece
cannot take opposing piece protected by an opposing piece
b1
noncapture/capture movement with limitation; length of movement 1 square
limitation
diagonal movement limits movement to 32 squares
c1
noncapture/capture movement; length of movement 1 square
f1
noncapture only movement; length of movement 1 square
g1
capture only movement; length of movement 1 square
h1
capture only movement special case; length of movement 1 square
special case
piece of like movement advances two (2) squares adjacent to opposing piece of
like movement
capture must occur immediate
result of capture is same as in g1
i1
noncapture only/capture only movement; length of movement 1 square
piece is replaced by friendly piece with following exception
not a piece of own likeness
not a piece with an a1 movement
b2
same as b1 except length of movement 2 squares
c2
same as c1 except length of movement 2 squares
c2 [N]
multi-directional movement; length of movement 2 squares not in same direction
this movement along with castling makes chess a three-dimensional game
when the knights are off the board
and castling no longer possible
chess becomes a two-dimensional game
d2
caslte King-side
multi-directional movement; length of movement 2 squares not in same direction
[R2] rook is the king rook
e2
castle Queen-side
multi-directional movement; length of movement 2 squares (King only)
f2
same as f1 except length of movement 2 squares
b3
same as b1 except length of movement 3 squares
c3
same as c1 above except length of movement 3 squares
e3
noncapture only movement; length of movement 3 squares
[R1] rook is the Queen rook
b4
same as b1 except length of movement is 4 squares
c4
same as c1 except length of movment is 4 squares
b5
same as b1 except length of movement is 5 squares
c5
same as c1 except length of movement is 5 squares
b6
same as b1 except length of movement is 6 squares
c6
same as c1 except length of movement is 6 squares
b7
same as b1 except length of movement is 7 squares
c7
same as c1 except length of movement is 7 squares
Column 3: piece(s) associated with the particular movement
Column 4: number of moves associated with the particular movement
for example:
a1
King movement
place King on 64 squares
count number of moves for each square
4 x 3 = 12
24 x 5 = 120
36 x 8 = 288
64 420 moves associated with movement a1...
i have a table in a *.doc (Word 97) format
that shows the above a lot better than i explain it
does not paste inside a post very well, though...
thanks...
pilgrimdan
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