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+<!doctype html>
+<html lang="zh-CN"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Mini Twelve Men's Morris</title><script src="https://cdn.tailwindcss.com"></script></head>
+<body class="min-h-screen bg-indigo-950 text-indigo-50"><main class="mx-auto flex min-h-screen max-w-4xl flex-col gap-4 px-4 py-5"><header class="flex flex-wrap items-center justify-between gap-3"><div><h1 class="text-2xl font-bold">Mini Twelve Men's Morris</h1><p class="text-sm text-indigo-200">Place twelve pieces each, make mills, remove rivals, then slide along the board.</p></div><button id="newGameBtn" class="rounded bg-fuchsia-300 px-4 py-2 font-semibold text-indigo-950 hover:bg-fuchsia-200">New Game</button></header><section class="grid gap-3 rounded border border-indigo-700 bg-indigo-900 p-3 sm:grid-cols-3"><div>Turn: <b id="turnLabel">White</b></div><div>Phase: <b id="phaseLabel">Place</b></div><div id="message">Choose an empty point.</div></section><section class="grid gap-4 lg:grid-cols-[1fr_220px]"><div id="board" class="mx-auto grid aspect-square w-full max-w-xl grid-cols-7 grid-rows-7 rounded border border-indigo-700 bg-indigo-800 p-3"></div><aside class="rounded border border-indigo-700 bg-indigo-900 p-3 text-sm"><div>White placed: <b id="wPlaced">0</b>/12</div><div>Black placed: <b id="bPlaced">0</b>/12</div><div>White alive: <b id="wAlive">0</b></div><div>Black alive: <b id="bAlive">0</b></div></aside></section></main><script>
+const pts=[[0,0],[3,0],[6,0],[1,1],[3,1],[5,1],[2,2],[3,2],[4,2],[0,3],[1,3],[2,3],[4,3],[5,3],[6,3],[2,4],[3,4],[4,4],[1,5],[3,5],[5,5],[0,6],[3,6],[6,6]],mills=[[0,1,2],[3,4,5],[6,7,8],[9,10,11],[12,13,14],[15,16,17],[18,19,20],[21,22,23],[0,9,21],[3,10,18],[6,11,15],[1,4,7],[16,19,22],[8,12,17],[5,13,20],[2,14,23],[0,3,6],[2,5,8],[21,18,15],[23,20,17]],adj=[[1,3,9],[0,2,4],[1,5,14],[0,4,6,10],[1,3,5,7],[2,4,8,13],[3,7,11],[4,6,8],[5,7,12],[0,10,21],[3,9,11,18],[6,10,15],[8,13,17],[5,12,14,20],[2,13,23],[11,16,18],[15,17,19],[12,16,20],[10,15,19,21],[16,18,20,22],[13,17,19,23],[9,18,22],[19,21,23],[14,20,22]];let board,turn,placed,phase,removing,selected,gameOver;const el=id=>document.getElementById(id),boardEl=el('board'),message=el('message'),turnLabel=el('turnLabel'),phaseLabel=el('phaseLabel'),newGameBtn=el('newGameBtn');function enemy(p){return p==='W'?'B':'W'}function name(p){return p==='W'?'White':'Black'}function canFormMill(i,p){return mills.some(m=>m.includes(i)&&m.every(x=>board[x]===p))}function alive(p){return board.filter(x=>x===p).length}function setTurn(p){turn=p;turnLabel.textContent=name(turn)}function next(){selected=null;setTurn(enemy(turn));message.textContent=phase==='place'?'Choose an empty point.':'Select one of your pieces.'}function removable(i){const e=enemy(turn);return board[i]===e&&(!canFormMill(i,e)||board.every((v,j)=>v!==e||canFormMill(j,e)))}function handlePoint(i){if(gameOver)return;if(removing){if(!removable(i)){message.textContent='Pick an opponent piece outside a mill if possible.';return}board[i]='';removing=false;if(phase==='move'&&alive(enemy(turn))<3){message.textContent=`${name(turn)} wins.`;gameOver=true;render();return}next();render();return}if(phase==='place'){if(board[i])return;board[i]=turn;placed[turn]++;const allPlaced=placed.W===12&&placed.B===12,formed=canFormMill(i,turn);if(formed){if(allPlaced)phase='move';removing=true;message.textContent='Mill formed. Remove one opponent piece.'}else if(allPlaced){message.textContent='Filled board. Draw.';gameOver=true}else next();render();return}if(selected===null){if(board[i]===turn){selected=i;message.textContent='Choose an adjacent empty point.';render()}return}if(i===selected){selected=null;message.textContent='Selection cleared.';render();return}if(!board[i]&&adj[selected].includes(i)){board[i]=turn;board[selected]='';if(canFormMill(i,turn)){removing=true;message.textContent='Mill formed. Remove one opponent piece.'}else next();render()}}function render(){boardEl.innerHTML='';pts.forEach(([c,r],i)=>{const b=document.createElement('button');b.className='m-auto flex h-11 w-11 items-center justify-center rounded-full border-2 '+(selected===i?'border-fuchsia-300 ':'border-indigo-500 ')+(board[i]==='W'?'bg-white text-indigo-950':board[i]==='B'?'bg-indigo-950 text-white':'bg-indigo-700 hover:bg-indigo-600');b.style.gridColumn=c+1;b.style.gridRow=r+1;b.textContent=board[i]||'';b.onclick=()=>handlePoint(i);boardEl.appendChild(b)});phaseLabel.textContent=gameOver?'Game Over':removing?'Remove':phase==='place'?'Place':'Move';el('wPlaced').textContent=placed.W;el('bPlaced').textContent=placed.B;el('wAlive').textContent=alive('W');el('bAlive').textContent=alive('B')}function newGame(){board=Array(24).fill('');placed={W:0,B:0};phase='place';removing=false;selected=null;gameOver=false;setTurn('W');message.textContent='Choose an empty point.';render()}newGameBtn.addEventListener('click',newGame);newGame();
+</script></body></html>
