def prcapturePawn(mv, mvs):
assert tag(mv) in ["x", "x/", "xep"]
assert isPawn(manAt(osq(mv)))
# simplest form - fxln
f = "abcdefgh"[col(osq(mv))]
ln = square.pr(nsq(mv))
if tag(mv) == "x/":
q = man.pr(pmn(mv))
s = "%sx%s=%s" % (f, ln, q)
else:
s = "%sx%s" % (f, ln)
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
# disambiguate by both - rfxln
rf = square.pr(osq(mv))
if tag(mv) == "x/":
s = "%sx%s=%s" % (rf, ln, q)
else:
s = "%sx%s" % (rf, ln)
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
# if move is legal there should be no other cases
assert False
def prdashPiece(mv, mvs):
assert tag(mv) == "-"
assert isPiece(manAt(osq(mv)))
# simplest form - pln
p = man.pr(manAt(osq(mv)))
ln = square.pr(nsq(mv))
s = "%s%s" % (p, ln)
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
# disabiguate by file - pfln
f = "abcdefgh"[col(osq(mv))]
s = "%s%s%s" % (p, f, ln)
found = algebraic.find(s, mvs)
if (len(found)) == 1:
return s
# disambiguate by rank - prln
r = "12345678"[row(osq(mv))]
s = "%s%s%s" % (p, r, ln)
found = algebraic.find(s, mvs)
if (len(found)) == 1:
return s
# disambiguate by both -rare but possible - prfln
s = "%s%s%s%s" % (p, r, f, ln)
if (len(found)) == 1:
return s
# there should be no other cases given that move is legal
assert False
def prcapturePiece(mv, mvs):
assert tag(mv) in ["x", "x/", "xep"]
assert isPiece(manAt(osq(mv)))
# simplest form - pxln
p = man.pr(manAt(osq(mv)))
ln = square.pr(nsq(mv))
s = "%sx%s" % (p, ln)
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
# disambiguate by file - pfxln
f = "abcdefgh"[col(osq(mv))]
s = "%s%sx%s" % (p, f, ln)
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
# disambiguate by rank - prxln
r = "12345678"[row(osq(mv))]
s = "%s%sx%s" % (p, r, ln)
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
# disambiguate by both - prfxln
s = "%s%s%sx%s" % (p, r, f, ln)
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
# if move is legal there should be no other cases
assert False
def prdashPawn(mv, mvs):
assert tag(mv) == "-" or tag(mv) == "-/"
assert isPawn(manAt(osq(mv)))
# simplest form - ln
ln = square.pr(nsq(mv))
if tag(mv) == "-/":
q = man.pr(pmn(mv))
s = "%s=%s" % (ln, q)
else:
s = ln
found = algebraic.find(s, mvs)
if len(found) == 1:
return s
if board.blackAllowOO:
av = av + "k"
if board.blackAllowOOO:
av = av + "q"
if av=="":
av = "-"
def prEpTargetSq():
if len(board.history)=0:
return "-"
mv = board.lastmove()
if move.tag(mv)=="-" and board.manAt(move.nsq(mv))==man.pawn:
if move.color(mv)=='white':
if square.rank(move.osq(mv))==2 and square.rank(move.nsq(mv))==4:
return square.pr(square.fwd(move.osq(mv)))
else:
assert move.color(mv)=='black'
if square.rank(move.osq(mv))==7 and square.rank(move.nsq(mv))==5:
return square.pr(square.bak(move.osq(mv)))
else:
return "-"
def prHalfMoveClock():
#number of half moves since the last pawn advance or capturing move
return "0" # TBD
def prFullMoveNumber():
return str(len(history)/2 + 1)
# converting FEN to board position
def prcapture(mv):
manthatmoves = man.pr(board.theBoard[osq(mv)])
fromsquare = square.pr(osq(mv))
tosquare = square.pr(nsq(mv))
return "%s%sx%s" % (manthatmoves, fromsquare, tosquare)
def XOR(h, mn, sq):
if mn == 0:
return h
else:
return h ^ ran1[sym[mn] + square.pr(sq)]
def genTbl(tbl):
for sq in xrange(0, 64):
for m in sym.keys():
tbl[sym[m] + square.pr(sq)] = random.randint(1, 2**N)
