Gamemaster General Game Playing skirmish Description Skirmish is a variant of Chess. Same size board. Same pieces with the same moves, except no castling, no en passant captures, and no queening. And the game does *not* terminate when a king is captured. The object of the game is to take as many of the opponent's pieces as possible while losing as few of one's own pieces as possible. Each player's score is the sum of the points for the player's remaining pieces plus the points for the opponent's pieces that have been captured. A king is worth 11 points, and a queen is worth 9. Each rook is worth 5 points, each bishop or knight 3 points, and each pawn 1 point. (In this implementation, the point total for white is shown in the box on the left of the board, and the point total for black is shown on the right.) The game terminates after 50 moves or whenever either player has no legal moves. The winner is the player with the larger score. To make a move, click on a piece and drag to the desired square. Rulesheet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% skirmish %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% metadata %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% role(white) role(black) base(location(cell(X,Y),piece(R,king,1))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,queen,1))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,bishop,1))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,bishop,2))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,knight,1))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,knight,2))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,rook,1))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,rook,2))) :- file(X) & rank(Y) & role(R) base(location(cell(X,Y),piece(R,pawn,N))) :- file(X) & rank(Y) & role(R) & rank(N) base(white(N)) :- number(N) base(black(N)) :- number(N) base(control(Role)) :- role(Role) base(step(N)) :- number(N) & leq(1,N) & leq(N,35) action(move(P,C)) :- ispiece(P) & iscell(C) action(leave(P)) :- ispiece(P) action(capture(Q)) :- ispiece(Q) action(clean(Y)) :- iscell(Y) action(kerchunk) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% init %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% init(location(cell(a,8),piece(black,rook,1))) init(location(cell(b,8),piece(black,knight,1))) init(location(cell(c,8),piece(black,bishop,1))) init(location(cell(d,8),piece(black,queen,1))) init(location(cell(e,8),piece(black,king,1))) init(location(cell(f,8),piece(black,bishop,2))) init(location(cell(g,8),piece(black,knight,2))) init(location(cell(h,8),piece(black,rook,2))) init(location(cell(a,7),piece(black,pawn,1))) init(location(cell(b,7),piece(black,pawn,2))) init(location(cell(c,7),piece(black,pawn,3))) init(location(cell(d,7),piece(black,pawn,4))) init(location(cell(e,7),piece(black,pawn,5))) init(location(cell(f,7),piece(black,pawn,6))) init(location(cell(g,7),piece(black,pawn,7))) init(location(cell(h,7),piece(black,pawn,8))) init(location(cell(a,2),piece(white,pawn,1))) init(location(cell(b,2),piece(white,pawn,2))) init(location(cell(c,2),piece(white,pawn,3))) init(location(cell(d,2),piece(white,pawn,4))) init(location(cell(e,2),piece(white,pawn,5))) init(location(cell(f,2),piece(white,pawn,6))) init(location(cell(g,2),piece(white,pawn,7))) init(location(cell(h,2),piece(white,pawn,8))) init(location(cell(a,1),piece(white,rook,1))) init(location(cell(b,1),piece(white,knight,1))) init(location(cell(c,1),piece(white,bishop,1))) init(location(cell(d,1),piece(white,queen,1))) init(location(cell(e,1),piece(white,king,1))) init(location(cell(f,1),piece(white,bishop,2))) init(location(cell(g,1),piece(white,knight,2))) init(location(cell(h,1),piece(white,rook,2))) init(white(50)) init(black(50)) init(control(white)) init(step(1)) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% legal %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% legal(move(piece(R,P,N),cell(X,Y))) :- control(R) & location(cell(U,V),piece(R,P,N)) & validmove(piece(R,P,N),U,V,X,Y) & ~celloccupiedby(X,Y,R) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% operations %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% move(P,Y) :: location(Y,P) & leave(P) & clean(Y) & kerchunk leave(P) :: location(X,P) ==> ~location(X,P) clean(Y) :: location(Y,Q) ==> ~location(Y,Q) & capture(Q) capture(piece(white,Q,N)) :: white(OW) & worth(Q,W) & minus(OW,W,NW) ==> ~white(OW) & white(NW) capture(piece(white,Q,N)) :: black(OB) & worth(Q,W) & plus(OB,W,NB) ==> ~black(OB) & black(NB) capture(piece(black,Q,N)) :: white(OW) & worth(Q,W) & plus(OW,W,NW) ==> ~white(OW) & white(NW) capture(piece(black,Q,N)) :: black(OB) & worth(Q,W) & minus(OB,W,NB) ==> ~black(OB) & black(NB) kerchunk :: control(white) ==> ~control(white) & control(black) kerchunk :: control(black) ==> ~control(black) & control(white) kerchunk :: step(M) & plus(M,1,N) ==> ~step(M) & step(N) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% goal %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% goal(white,N) :- white(N) goal(black,N) :- black(N) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% terminal %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% terminal :- step(35) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% views %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% validmove(piece(white,pawn,N),U,V,X,Y) :- whitepawnmove(U,V,X,Y) & rank(N) validmove(piece(black,pawn,N),U,V,X,Y) :- blackpawnmove(U,V,X,Y) & rank(N) validmove(piece(R,rook,1),U,V,X,Y) :- role(R) & rookmove(U,V,X,Y) validmove(piece(R,rook,2),U,V,X,Y) :- role(R) & rookmove(U,V,X,Y) validmove(piece(R,knight,1),U,V,X,Y) :- role(R) & knightmove(U,V,X,Y) validmove(piece(R,knight,2),U,V,X,Y) :- role(R) & knightmove(U,V,X,Y) validmove(piece(R,bishop,1),U,V,X,Y) :- role(R) & bishopmove(U,V,X,Y) validmove(piece(R,bishop,2),U,V,X,Y) :- role(R) & bishopmove(U,V,X,Y) validmove(piece(R,queen,1),U,V,X,Y) :- role(R) & queenmove(U,V,X,Y) validmove(piece(R,king,1),U,V,X,Y) :- role(R) & kingmove(U,V,X,Y) whitepawnmove(X,2,X,4) :- cellempty(X,3) & cellempty(X,4) whitepawnmove(X,Y1,X,Y2) :- nextrank(Y1,Y2) & cellempty(X,Y2) whitepawnmove(X1,Y1,X2,Y2) :- nextfile(X1,X2) & nextrank(Y1,Y2) & celloccupiedby(X2,Y2,black) whitepawnmove(X1,Y1,X2,Y2) :- nextfile(X2,X1) & nextrank(Y1,Y2) & celloccupiedby(X2,Y2,black) blackpawnmove(X,7,X,5) :- cellempty(X,6) & cellempty(X,5) blackpawnmove(X,Y1,X,Y2) :- nextrank(Y2,Y1) & cellempty(X,Y2) blackpawnmove(X1,Y1,X2,Y2) :- nextfile(X1,X2) & nextrank(Y2,Y1) & celloccupiedby(X2,Y2,white) blackpawnmove(X1,Y1,X2,Y2) :- nextfile(X2,X1) & nextrank(Y2,Y1) & celloccupiedby(X2,Y2,white) rookmove(X1,Y1,X2,Y2) :- horizontalmove(X1,Y1,X2,Y2) rookmove(X1,Y1,X2,Y2) :- horizontalmove(X2,Y2,X1,Y1) rookmove(X1,Y1,X2,Y2) :- verticalmove(X1,Y1,X2,Y2) rookmove(X1,Y1,X2,Y2) :- verticalmove(X2,Y2,X1,Y1) knightmove(X1,Y1,X2,Y2) :- skipfile(X1,X2) & nextrank(Y1,Y2) knightmove(X1,Y1,X2,Y2) :- skipfile(X1,X2) & nextrank(Y2,Y1) knightmove(X1,Y1,X2,Y2) :- skipfile(X2,X1) & nextrank(Y1,Y2) knightmove(X1,Y1,X2,Y2) :- skipfile(X2,X1) & nextrank(Y2,Y1) knightmove(X1,Y1,X2,Y2) :- skiprank(Y1,Y2) & nextfile(X1,X2) knightmove(X1,Y1,X2,Y2) :- skiprank(Y1,Y2) & nextfile(X2,X1) knightmove(X1,Y1,X2,Y2) :- skiprank(Y2,Y1) & nextfile(X1,X2) knightmove(X1,Y1,X2,Y2) :- skiprank(Y2,Y1) & nextfile(X2,X1) bishopmove(X1,Y1,X2,Y2) :- northeastmove(X1,Y1,X2,Y2) bishopmove(X1,Y1,X2,Y2) :- northeastmove(X2,Y2,X1,Y1) bishopmove(X1,Y1,X2,Y2) :- southeastmove(X1,Y1,X2,Y2) bishopmove(X1,Y1,X2,Y2) :- southeastmove(X2,Y2,X1,Y1) queenmove(X1,Y1,X2,Y2) :- rookmove(X1,Y1,X2,Y2) queenmove(X1,Y1,X2,Y2) :- bishopmove(X1,Y1,X2,Y2) kingmove(X1,Y,X2,Y) :- nextfile(X1,X2) & rank(Y) kingmove(X1,Y,X2,Y) :- nextfile(X2,X1) & rank(Y) kingmove(X,Y1,X,Y2) :- nextrank(Y1,Y2) & file(X) kingmove(X,Y1,X,Y2) :- nextrank(Y2,Y1) & file(X) kingmove(X1,Y1,X2,Y2) :- nextfile(X1,X2) & nextrank(Y1,Y2) kingmove(X1,Y1,X2,Y2) :- nextfile(X2,X1) & nextrank(Y1,Y2) kingmove(X1,Y1,X2,Y2) :- nextfile(X1,X2) & nextrank(Y2,Y1) kingmove(X1,Y1,X2,Y2) :- nextfile(X2,X1) & nextrank(Y2,Y1) horizontalmove(X1,Y,X2,Y) :- nextfile(X1,X2) & rank(Y) horizontalmove(X1,Y,X3,Y) :- nextfile(X1,X2) & cellempty(X2,Y) & horizontalmove(X2,Y,X3,Y) verticalmove(X,Y1,X,Y2) :- nextrank(Y1,Y2) & file(X) verticalmove(X,Y1,X,Y3) :- nextrank(Y1,Y2) & cellempty(X,Y2) & verticalmove(X,Y2,X,Y3) northeastmove(X1,Y1,X2,Y2) :- nextfile(X1,X2) & nextrank(Y1,Y2) northeastmove(X1,Y1,X3,Y3) :- nextfile(X1,X2) & nextrank(Y1,Y2) & cellempty(X2,Y2) & northeastmove(X2,Y2,X3,Y3) southeastmove(X1,Y1,X2,Y2) :- nextfile(X1,X2) & nextrank(Y2,Y1) southeastmove(X1,Y1,X3,Y3) :- nextfile(X1,X2) & nextrank(Y2,Y1) & cellempty(X2,Y2) & southeastmove(X2,Y2,X3,Y3) adjacent(cell(X1,Y),cell(X2,Y)) :- nextfile(X1,X2) & rank(Y) adjacent(cell(X1,Y),cell(X2,Y)) :- nextfile(X2,X1) & rank(Y) adjacent(cell(X,Y1),cell(X,Y2)) :- file(X) & nextrank(Y1,Y2) adjacent(cell(X,Y1),cell(X,Y2)) :- file(X) & nextrank(Y2,Y1) adjacent(cell(X1,Y1),cell(X2,Y2)) :- nextfile(X1,X2) & nextrank(Y1,Y2) adjacent(cell(X1,Y1),cell(X2,Y2)) :- nextfile(X2,X1) & nextrank(Y1,Y2) adjacent(cell(X1,Y1),cell(X2,Y2)) :- nextfile(X1,X2) & nextrank(Y2,Y1) adjacent(cell(X1,Y1),cell(X2,Y2)) :- nextfile(X2,X1) & nextrank(Y2,Y1) ispiece(piece(R,king,1)) :- role(R) ispiece(piece(R,queen,1)) :- role(R) ispiece(piece(R,bishop,1)) :- role(R) ispiece(piece(R,bishop,2)) :- role(R) ispiece(piece(R,knight,1)) :- role(R) ispiece(piece(R,knight,2)) :- role(R) ispiece(piece(R,rook,1)) :- role(R) ispiece(piece(R,rook,2)) :- role(R) ispiece(piece(R,pawn,N)) :- role(R) & rank(N) iscell(cell(X,Y)) :- file(X) & rank(Y) cellempty(X,Y) :- file(X) & rank(Y) & ~celloccupied(X,Y) celloccupied(X,Y) :- location(cell(X,Y),Piece) celloccupiedby(X,Y,R) :- location(cell(X,Y),piece(R,P,N)) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% facts %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% file(a) file(b) file(c) file(d) file(e) file(f) file(g) file(h) rank(1) rank(2) rank(3) rank(4) rank(5) rank(6) rank(7) rank(8) nextrank(1,2) nextrank(2,3) nextrank(3,4) nextrank(4,5) nextrank(5,6) nextrank(6,7) nextrank(7,8) nextfile(a,b) nextfile(b,c) nextfile(c,d) nextfile(d,e) nextfile(e,f) nextfile(f,g) nextfile(g,h) skiprank(1,3) skiprank(2,4) skiprank(3,5) skiprank(4,6) skiprank(5,7) skiprank(6,8) skipfile(a,c) skipfile(b,d) skipfile(c,e) skipfile(d,f) skipfile(e,g) skipfile(f,h) worth(king,11) worth(queen,9) worth(rook,5) worth(bishop,3) worth(knight,3) worth(pawn,1) number(0) number(1) number(2) number(3) number(4) number(5) number(6) number(7) number(8) number(9) number(10) number(11) number(12) number(13) number(14) number(15) number(16) number(17) number(18) number(19) number(20) number(21) number(22) number(23) number(24) number(25) number(26) number(27) number(28) number(29) number(30) number(31) number(32) number(33) number(34) number(35) number(36) number(37) number(38) number(39) number(40) number(41) number(42) number(43) number(44) number(45) number(46) number(47) number(48) number(49) number(50) number(51) number(52) number(53) number(54) number(55) number(56) number(57) number(58) number(59) number(60) number(61) number(62) number(63) number(64) number(65) number(66) number(67) number(68) number(69) number(70) number(71) number(72) number(73) number(74) number(75) number(76) number(77) number(78) number(79) number(80) number(81) number(82) number(83) number(84) number(85) number(86) number(87) number(88) number(89) number(90) number(91) number(92) number(93) number(94) number(95) number(96) number(97) number(98) number(99) number(100) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Stylesheet //============================================================================== // skirmish //============================================================================== function rendersituation (state) {var role = findcontrol(state,library); var table = document.createElement('table'); table.setAttribute('border','0'); var row = table.insertRow(table.rows.length); var cell = row.insertCell(0); cell.setAttribute('align','center'); cell.setAttribute('style',"font-size:14px;font-family:arial;color:#888888"); cell.innerHTML = "Drag and drop to move."; var row = table.insertRow(table.rows.length); var cell = row.insertCell(0); cell.setAttribute('align','center'); cell.appendChild(renderactiveboard(state)); row = table.insertRow(table.rows.length); var cell = row.insertCell(0); cell.setAttribute('align','center'); cell.setAttribute('style','font-size:20px'); if (findterminalp(state,library)) {cell.innerHTML = 'Game over'} else {cell.innerHTML = 'Control: ' + role}; return table} function renderactiveboard (state) {var table = document.createElement('table'); table.setAttribute('cellspacing','2'); table.setAttribute('border','4'); for (var i=8; i>0; i--) {var row = table.insertRow(8-i); var rank = stringize(i); makeactivecell(row,'a',rank,state); makeactivecell(row,'b',rank,state); makeactivecell(row,'c',rank,state); makeactivecell(row,'d',rank,state); makeactivecell(row,'e',rank,state); makeactivecell(row,'f',rank,state); makeactivecell(row,'g',rank,state); makeactivecell(row,'h',rank,state)}; return table} function makeactivecell (row,file,rank,state) {var cell = row.insertCell(row.cells.length); cell.id = grind(seq('cell',file,rank)); cell.setAttribute('width','50'); cell.setAttribute('height','50'); cell.setAttribute('align','center'); cell.setAttribute('valign','center'); var image = getimage(file,rank,state); if (image) {var widget = document.createElement('img'); widget.id = getpieceid(file,rank,state); widget.setAttribute('width','40'); widget.setAttribute('height','40'); widget.setAttribute('src',image); widget.setAttribute('draggable','true'); widget.setAttribute('ondragstart','drag(event)'); cell.appendChild(widget)} else {cell.innerHTML = ' '}; cell.setAttribute('ondrop','drop(event)'); cell.setAttribute('ondragover','allowdrop(event)'); return cell} function allowdrop(ev) {ev.preventDefault()} function drag (ev) {ev.dataTransfer.setData("text",ev.target.id); //console.log('Dragging ' + ev.target.id); return true} function drop (ev) {//ev.preventDefault(); //console.log('Dropped ' + ev.dataTransfer.getData("text") + ' in ' + ev.target.id); var source = read(ev.dataTransfer.getData("text")); var target = read(ev.target.id); if (target[0]==='piece') {target = compfindx('L',seq('location','L',target),state,library)}; var move = seq('move',source,target); if (findlegalp(move,state,library)) {perform(move)}; return true} function getpieceid (file,rank,state) {var piece = compfindx('Piece',seq('location',seq('cell',file,rank),'Piece'),state,library); if (!piece) {return ""}; return grind(piece)} //============================================================================== function renderstate (state) {var step = compfindx('N',seq('step','N'),state,library); var role = compfindx('R',seq('control','R'),state,library); var white = compfindx('N',seq('white','N'),state,library); var black = compfindx('N',seq('black','N'),state,library); var table = document.createElement('table'); table.setAttribute('border','0'); var row = table.insertRow(0); var cell = row.insertCell(0); cell.setAttribute('colspan',3); cell.setAttribute('align','center'); cell.setAttribute('style','font-size:20px'); cell.innerHTML = 'Step: ' + step; row = table.insertRow(1); var cell = row.insertCell(0); cell.setAttribute('align','center'); cell.setAttribute('style','font-size:20px'); cell.innerHTML = "White:<br/>" + white; cell = row.insertCell(1); cell.appendChild(renderboard(state)); cell = row.insertCell(2); cell.setAttribute('align','center'); cell.setAttribute('style','font-size:20px'); cell.innerHTML = "Black:<br/>" + black; row = table.insertRow(2); var cell = row.insertCell(0); cell.setAttribute('colspan',3); cell.setAttribute('align','center'); cell.setAttribute('style','font-size:20px'); if (compfindp('terminal',state,library)) {cell.innerHTML = 'Game over'} else {cell.innerHTML = 'Control: ' + role}; return table} function renderboard (state) {var table = document.createElement('table'); table.setAttribute('cellspacing','2'); table.setAttribute('border','4'); for (var i=8; i>0; i--) {var row = table.insertRow(8-i); var rank = stringize(i); makecell(row,'a',rank,state); makecell(row,'b',rank,state); makecell(row,'c',rank,state); makecell(row,'d',rank,state); makecell(row,'e',rank,state); makecell(row,'f',rank,state); makecell(row,'g',rank,state); makecell(row,'h',rank,state)}; return table} function makecell (row,file,rank,state) {var cell = row.insertCell(row.cells.length); cell.setAttribute('width','50'); cell.setAttribute('height','50'); cell.setAttribute('align','center'); cell.setAttribute('valign','center'); var image = getimage(file,rank,state); if (image) {var widget = document.createElement('img'); widget.setAttribute('width','40'); widget.setAttribute('height','40'); widget.setAttribute('src',image); cell.appendChild(widget)} else {cell.innerHTML = ' '}; return cell} function getimage (file,rank,state) {var piece = compfindx('Piece',seq('location',seq('cell',file,rank),'Piece'),state,library); if (piece[1]==='white') {if (piece[2]==='king') {return '../library/skirmish/White_King.png'}; if (piece[2]==='queen') {return '../library/skirmish/White_Queen.png'}; if (piece[2]==='bishop') {return '../library/skirmish/White_Bishop.png'}; if (piece[2]==='knight') {return '../library/skirmish/White_Knight.png'}; if (piece[2]==='rook') {return '../library/skirmish/White_Rook.png'}; if (piece[2]==='pawn') {return '../library/skirmish/White_Pawn.png'}; return false}; if (piece[1]==='black') {if (piece[2]==='king') {return '../library/skirmish/Black_King.png'}; if (piece[2]==='queen') {return '../library/skirmish/Black_Queen.png'}; if (piece[2]==='bishop') {return '../library/skirmish/Black_Bishop.png'}; if (piece[2]==='knight') {return '../library/skirmish/Black_Knight.png'}; if (piece[2]==='rook') {return '../library/skirmish/Black_Rook.png'}; if (piece[2]==='pawn') {return '../library/skirmish/Black_Pawn.png'}; return false}; return false} //============================================================================== function renderactions (state) {return document.createTextNode("")} //============================================================================== //============================================================================== //============================================================================== Ownership