Take the last object, lose the game
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</style></head><body><main><header><p class="kicker">MISÈRE NIM · TWO LOCAL PLAYERS</p><h1>Take the last object, lose the game</h1><p>Rule: remove at least one object from one pile. Whoever takes the last object loses. Two local players; no AI.</p></header><section class="panel"><h2>Piles and active player</h2><div id="state" class="result" role="status" aria-live="polite"></div><div class="actions"><button type="button" id="p0">Pile 0</button><button type="button" id="p1">Pile 1</button><button type="button" id="p2">Pile 2</button></div><div id="piles" class="result" role="status" aria-live="polite"></div><div id="selection" class="result" role="status" aria-live="polite">No pile selected.</div><label for="quantity">How many objects to remove?</label><input id="quantity" type="text" value=""><div class="actions"><button type="button" id="remove">Remove once</button><button type="button" id="reset">Reset game</button></div><div id="feedback" class="result" role="status" aria-live="polite">Select a nonempty pile.</div></section><section class="panel"><h2>Move history</h2><div id="history" class="result" role="status" aria-live="polite">No moves yet.</div></section><footer>Choose a nonempty pile and a positive removal. In this variant, taking the last object loses.</footer><noscript>JavaScript is required for the local controls. The accompanying article contains worked examples.</noscript></main><script>
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let piles=[1,2,3],actor='A',selected=null,terminal=false;const history=[];function render(){piles.forEach((count,i)=>{$('p'+i).disabled=terminal||count===0;$('p'+i).textContent='Pile '+i+(count===0?' (empty)':'');});$('piles').textContent=piles.map((n,i)=>'Pile '+i+': '+n).join(' / ')+' / Available actions: '+piles.reduce((a,b)=>a+b,0);if(!terminal)$('state').textContent='Playing · Player '+actor+' to move';$('history').textContent=history.length?history.map(x=>x.actor+' removes '+x.q+' from pile '+x.p+'; ['+x.before+'] → ['+x.after+']; '+x.result).join(' / '):'No moves yet.';}[0,1,2].forEach(i=>$('p'+i).addEventListener('click',()=>{if(terminal)return;if(piles[i]===0){selected=null;$('quantity').value='';$('selection').textContent='No pile selected.';$('feedback').textContent='Pile '+i+' is empty. Choose a nonempty pile.';return;}selected=i;$('quantity').value='';$('selection').textContent='Selected pile '+i+'; available removal1–'+piles[i]+'.';}));$('remove').addEventListener('click',()=>{if(terminal)return;const q=$('quantity').value.trim();if(selected===null||!/^\d+$/.test(q)||Number(q)<1||Number(q)>piles[selected]){$('feedback').textContent='Invalid action. Choose a nonempty pile and a whole quantity1 through its count; state unchanged.';return;}const before=piles.slice(),p=selected,n=Number(q),who=actor;piles[p]-=n;terminal=piles.every(x=>x===0);const result=terminal?'Player '+who+' loses; Player '+(who==='A'?'B':'A')+' wins': 'Player '+(who==='A'?'B':'A')+' to move';history.push({actor:who,p,q:n,before,after:piles.slice(),result});if(terminal)$('state').textContent='Terminal · '+result;else actor=who==='A'?'B':'A';selected=null;$('quantity').value='';$('selection').textContent='No pile selected.';$('feedback').textContent='Move committed once. '+result;render();});$('reset').addEventListener('click',()=>{piles=[1,2,3];actor='A';selected=null;terminal=false;history.length=0;$('quantity').value='';$('selection').textContent='No pile selected.';$('feedback').textContent='Select a nonempty pile.';render();});render();
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