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Generate random chess position: Difference between revisions
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</pre>
=={{header|Ruby}}==
<lang ruby>
def hasNK( board, a, b )
for g in -1 .. 1
for f in -1 .. 1
aa = a + f; bb = b + g
if aa.between?( 0, 7 ) && bb.between?( 0, 7 )
p = board[aa + 8 * bb]
if p == "K" || p == "k"; return true; end
end
end
end
return false
end
def generateBoard( board, pieces )
while( pieces.length > 1 )
p = pieces[pieces.length - 1]
pieces = pieces[0...-1]
while( true )
a = rand( 8 ); b = rand( 8 )
if ( ( b == 0 || b == 7 ) && ( p == "P" || p == "p" ) ) or
( ( p == "k" || p == "K" ) && hasNK( board, a, b ) ); next; end
if board[a + b * 8] == nil; break;end
end
board[a + b * 8] = p
end
end
pieces = "ppppppppkqrrbbnnPPPPPPPPKQRRBBNN"
for i in 0 .. 10
e = pieces.length - 1
while e > 0
p = rand( e ); t = pieces[e];
pieces[e] = pieces[p]; pieces[p] = t; e -= 1
end
end
board = Array.new( 64 ); generateBoard( board, pieces )
puts
e = 0
for j in 0 .. 7
for i in 0 .. 7
if board[i + 8 * j] == nil; e += 1
else
if e > 0; print( e ); e = 0; end
print( board[i + 8 * j] )
end
end
if e > 0; print( e ); e = 0; end
if j < 7; print( "/" ); end
end
print( " w - - 0 1\n" )
for j in 0 .. 7
for i in 0 .. 7
if board[i + j * 8] == nil; print( "." )
else print( board[i + j * 8] ); end
end
puts
end
</lang>
{{out}}<pre>
1bN1RK2/1Pp1pQbP/p2PpP2/8/1pkNP3/P1r1Pp1p/Bn1RPp1r/3qB3 w - - 0 1
.bN.RK..
.Pp.pQbP
p..PpP..
........
.pkNP...
P.r.Pp.p
Bn.RPp.r
...qB...
</pre>
=={{header|zkl}}==
{{trans|perl6}}
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