Run Detail

completedqwen3.8-27b

Unscored

Every model's answer from this round

Recorded for these videos

17:31

Testing Gemini 3.8 Flash on Real Coding Challenges (vs. other models)

Sep 2, 2026 · YouTube

17:37

Tencent Hy4 Preview Tested: Is It Really Better Than Kimi K3 and GLM 5.3?

Aug 28, 2026 · YouTube

23:58

Qwen 3.8 Flash Tested: UI, Coding, Physics & more - compared to Opus 5, Sol Pro, Grok

Aug 27, 2026 · YouTube

Provider

openrouter

Challenge Version

v1.0

Turns

Duration

217.3s

Total Tokens

15,633

Input Tokens

1,607

Output Tokens

14,026

Reasoning Tokens

9,986

Reasoning Effort

medium

Est. Cost

$0.0456

Started

8/26/2026, 11:05:04 AM

OR Provider

Parasail

Finish Reason

stop

Generation ID

gen-1787742304-r2izuYhTiZd5He5EDOeN

Turns (1)

Turn #1

1,607 in14,026 out9,986 reasoning15,633 total217.1s

user

Turn Two Cards

Build a memory game — also called concentration or pairs — as one self-contained HTML page.

The theme is fascinating animals. You choose the eight animals and the art style.

The game

A 4×4 board: 16 cards, all face down.
8 animals, each on exactly 2 cards.
Clicking a face-down card turns it face up.
At most two cards are face up at once.
If the two match, they stay face up.
If they do not match, they turn face down again after a short pause.
The game is won when all 8 pairs are face up.
Card positions are shuffled at the start of every game.

The player must be able to see how many moves they have made and how many pairs are left.

When a pair is matched, show that animal's fact.

When the game is won, say so clearly.

Controls

Clicking a card is the main interaction.

You may add exactly one button: New game.

Do not add:

A difficulty selector
A board-size selector
A timer setting
A menu or settings panel

The animals

Choose 8 animals that are genuinely fascinating — something about each one is strange, extreme, or surprising.

For each animal, provide:

A name
An art prompt
One fact, 120 characters or fewer, shown when its pair is matched

The facts must be true. They will be checked.

Do not use the eight most obvious zoo animals. Lion, tiger, elephant, giraffe, panda, penguin, dolphin and zebra are all forbidden.

Artwork

You do not create the artwork yourself. You write the prompts, and an image model draws them afterwards.

The art is delivered as one PNG:

art/cards.png

The file is a 2048×2048 3×3 contact sheet:

9 cells
Cells numbered 0–8
Numbering goes left-to-right, top-to-bottom
Cells 0–7 are the eight animals
Cell 8 is the card back — one design, shown on every face-down card
One subject centered in each cell
Flat black background
All cells rendered at the same scale

The grid layout, numbering, and background are fixed. Your job is to specify what belongs in each cell.

The path art/cards.png must appear exactly once in your HTML.

You may slice it with CSS background positioning, a canvas, clipped elements, or another technique.

Because the PNG has a black background, make sure the artwork sits properly on your card design.

Missing artwork

The game must be playable before art/cards.png exists.

If the image cannot be loaded, each face-up card must show a readable fallback — the animal's name, a drawn shape, or a styled placeholder. Blank cards are not acceptable, because a memory game with blank faces cannot be played at all.

Optional extra art

You may request one additional image, such as a table surface or background.

It must use the form art/<id>.png and it must be optional decoration — the page must look finished without it.

URL test mode

The page must support one URL mode.

`#demo`

Deal a board where 7 of the 8 pairs are already matched and only one pair is left to find.

This exists so the win can be filmed without playing a whole game.

It must be a real board state that the normal game logic plays out — not a fake animation.

Technical restrictions

The game must be a single HTML file.

It must:

Work offline
Run by double-clicking the HTML file
Require no build step
Use no CDN
Use no framework
Use no external stylesheet
Use no external fonts
Use no external scripts
Use no external images except the specified art/ files
Make no network requests at runtime

Do not use:

localStorage
sessionStorage
Cookies
indexedDB

The page must have no scrollbars at any window size. The board should scale to fit whatever space it is given.

Sound is optional. If you add any, generate it with the Web Audio API — no audio files.

Things to avoid

Emoji, anywhere. Not as card faces, not as buttons, not as decoration.
Card faces made of text or symbols instead of the artwork.
A board that reflows into a single column and has to be scrolled.

Required response

Your response must contain exactly these four sections.

The pitch

One line: what the game is called and what it looks like.

The game

Provide exactly one fenced html code block containing the complete HTML page and nothing else.

The art

Provide exactly one fenced json code block using this structure:

{
  "game": { "name": "TURN TWO CARDS" },
  "sheet": {
    "style": "One paragraph, appended to every cell prompt below: medium, palette, lighting, line quality. This is what makes nine separate images look like one deck.",
    "cells": [
      {
        "cell": 0,
        "id": "axolotl",
        "name": "Axolotl",
        "role": "animal",
        "prompt": "What to draw in this cell. One animal.",
        "fact": "It regrows lost limbs, and even parts of its brain, without scarring."
      },
      { "cell": 8, "id": "back", "name": "Card back", "role": "back", "prompt": "The pattern on the back of every card." }
    ]
  },
  "extras": [{ "id": "table", "aspect": "16:9", "prompt": "..." }]
}

Rules:

cells contains exactly 9 entries.
cell values are 0–8 with no gaps or duplicates.
Cells 0–7 have "role": "animal" and a fact.
Cell 8 has "role": "back" and no fact.
id is a single lowercase token and is unique.
fact is 120 characters or fewer.
extras may contain at most one entry, or be left out.
aspect must be one of: 16:9, 9:16, 1:1, 3:2, 2:3, 4:3, 3:4

The JSON block must contain no prose and no comments, because it is parsed automatically.

The notes

Four bullets:

Before the art arrives: what a card face shows while art/cards.png is unavailable.
On a win: what happens.
Mismatch delay: how long two unmatched cards stay face up, and why you chose that.
Fact sources: one line on how confident you are in the eight facts.

assistant

The pitch

Turn Two Cards — a 4×4 memory match of eight extraordinary animals, rendered as a flat nocturne deck on a lamplit wooden table.

The game

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Turn Two Cards</title>
<style>
:root{
  --bg:#0d1117; --ink:#e9f1f7; --dim:#8ea3b5; --accent:#ffd166; --line:#2b3a4a;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden}
body{
  background:var(--bg) url('art/table.png') center/cover no-repeat;
  color:var(--ink);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  display:flex;flex-direction:column;
  user-select:none;-webkit-user-select:none;
}
header{display:flex;align-items:center;gap:1em;flex-wrap:wrap;padding:.7em 1.1em .3em}
h1{font-size:clamp(.95rem,2.4vw,1.35rem);letter-spacing:.14em;text-transform:uppercase;font-weight:700}
h1 small{display:block;font-size:.55em;letter-spacing:.3em;color:var(--dim);font-weight:400}
.stats{display:flex;gap:1.4em;font-size:clamp(.75rem,1.9vw,.95rem);color:var(--dim)}
.stats b{color:var(--ink);font-variant-numeric:tabular-nums}
#newgame{
  margin-left:auto;background:transparent;color:var(--accent);
  border:1px solid var(--accent);border-radius:999px;
  padding:.45em 1.1em;font:inherit;font-size:clamp(.75rem,1.9vw,.95rem);
  letter-spacing:.08em;cursor:pointer;transition:background .2s,color .2s;
}
#newgame:hover{background:var(--accent);color:#141414}
#stage{flex:1;min-height:0;position:relative;display:grid;place-items:center;padding:.6em}
#board{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:clamp(5px,1.1vw,12px)}
.card{position:relative;background:none;border:0;cursor:pointer;perspective:700px}
.card .inner{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.4,.1,.2,1)}
.card.up .inner{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:clamp(6px,1.2vw,12px);overflow:hidden;background:#000}
.face.back{border:1px solid var(--line);background-image:var(--art,none);background-size:300% 300%;background-position:100% 100%}
body.no-art .face.back{background-image:repeating-linear-gradient(45deg,#16202b 0 10px,#101821 10px 20px)}
.face.front{transform:rotateY(180deg);border:1px solid var(--line);background-image:var(--art,none);background-size:300% 300%;display:grid;place-items:center}
.card.matched .face.front{border-color:var(--accent);box-shadow:0 0 14px rgba(255,209,102,.45)}
.fname{display:none;flex-direction:column;align-items:center;gap:.3em;padding:.4em;text-align:center}
.fname i{width:34%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 35% 30%,hsl(var(--h) 70% 65%),hsl(var(--h) 70% 30%));border:2px solid hsl(var(--h) 70% 75%)}
.fname span{font-size:clamp(.55rem,1.6vw,.85rem);letter-spacing:.05em;color:var(--ink)}
body.no-art .fname{display:flex}
#factbar{padding:.4em 1.1em .8em;text-align:center;font-size:clamp(.75rem,2vw,1rem);color:var(--dim);min-height:2.4em}
#factbar b{color:var(--accent)}
#win{position:absolute;inset:0;display:none;place-items:center;background:rgba(8,10,14,.72);pointer-events:none}
#win.show{display:grid}
#win div{text-align:center;padding:1em}
#win h2{font-size:clamp(1.4rem,5vw,2.6rem);letter-spacing:.1em;color:var(--accent);text-transform:uppercase}
#win p{margin-top:.5em;font-size:clamp(.9rem,2.5vw,1.2rem);color:var(--ink)}
</style>
</head>
<body class="no-art">
<header>
  <h1>Turn Two Cards<small>fascinating animals</small></h1>
  <div class="stats">
    <span>Moves <b id="moves">0</b></span>
    <span>Pairs left <b id="pairs">8</b></span>
  </div>
  <button id="newgame" type="button">New game</button>
</header>
<div id="stage">
  <div id="board" aria-label="memory board"></div>
  <div id="win"><div><h2>You win</h2><p id="wintext"></p></div></div>
</div>
<footer id="factbar"><span id="fact">Flip two cards and find the matching pairs.</span></footer>
<script>
const ANIMALS=[
  {id:'axolotl',name:'Axolotl',hue:335,fact:'It regrows lost limbs, and even parts of its brain, without scarring.'},
  {id:'shrimp',name:'Mantis Shrimp',hue:15,fact:'Its punch is so fast it boils the water, creating bubbles that flash light.'},
  {id:'platypus',name:'Platypus',hue:28,fact:"The male's hind legs carry venomous spurs — one of only five venomous mammals."},
  {id:'tardigrade',name:'Tardigrade',hue:150,fact:'It can survive the vacuum of space, temperatures near absolute zero, and extreme radiation.'},
  {id:'cuttlefish',name:'Cuttlefish',hue:190,fact:'It has three hearts, blue blood, and can change skin color in a tenth of a second.'},
  {id:'molerat',name:'Naked Mole-Rat',hue:350,fact:'It is virtually immune to cancer and does not feel pain when injected with acid.'},
  {id:'jelly',name:'Immortal Jellyfish',hue:265,fact:'When injured or old, it reverts to a polyp and starts life over — biologically immortal.'},
  {id:'eel',name:'Electric Eel',hue:55,fact:'It can discharge up to 860 volts — enough to stun a horse.'}
];
const ART='art/cards.png';
document.documentElement.style.setProperty('--art',"url('"+ART+"')");
const probe=new Image();
probe.onload=()=>document.body.classList.remove('no-art');
probe.src=ART;

const board=document.getElementById('board'),
      movesEl=document.getElementById('moves'),
      pairsEl=document.getElementById('pairs'),
      factEl=document.getElementById('fact'),
      winEl=document.getElementById('win'),
      winText=document.getElementById('wintext'),
      stage=document.getElementById('stage');

let S={first:null,lock:false,moves:0,matched:0};

function shuffle(a){for(let i=a.length-1;i>0;i--){const j=Math.floor(Math.random()*(i+1));[a[i],a[j]]=[a[j],a[i]];}return a;}

function makeCard(cell){
  const a=ANIMALS[cell];
  const b=document.createElement('button');
  b.type='button';
  b.className='card';
  b.dataset.cell=cell;
  b.setAttribute('aria-label','card');
  const col=cell%3,row=Math.floor(cell/3);
  b.innerHTML='<div class="inner"><div class="face back"></div><div class="face front" style="background-position:'+(col*50)+'% '+(row*50)+'%"><span class="fname" style="--h:'+a.hue+'"><i></i><span>'+a.name+'</span></span></div></div>';
  b.addEventListener('click',()=>flip(b));
  return b;
}

function deal(demo){
  S={first:null,lock:false,moves:0,matched:0};
  winEl.classList.remove('show');
  factEl.textContent='Flip two cards and find the matching pairs.';
  const cells=shuffle(ANIMALS.flatMap((_,i)=>[i,i]));
  board.innerHTML='';
  const cards=cells.map(c=>{const el=makeCard(c);board.appendChild(el);return el;});
  if(demo){
    const leave=Math.floor(Math.random()*8);
    cards.forEach(el=>{
      if(+el.dataset.cell!==leave){el.classList.add('up','matched');S.matched++;}
    });
    factEl.innerHTML='<b>Demo board</b> — one pair left to find.';
  }
  update();
}

function update(){
  movesEl.textContent=S.moves;
  pairsEl.textContent=8-S.matched;
}

function flip(card){
  if(S.lock||card.classList.contains('up'))return;
  card.classList.add('up');
  tone(520,.06);
  if(!S.first){S.first=card;return;}
  S.moves++;
  const a=S.first,b=card;
  if(a.dataset.cell===b.dataset.cell){
    a.classList.add('matched');b.classList.add('matched');
    S.matched++;S.first=null;
    const an=ANIMALS[+b.dataset.cell];
    factEl.innerHTML='<b>'+an.name+'</b> — '+an.fact;
    tone(660,.09);setTimeout(()=>tone(880,.12),90);
    if(S.matched===8){
      winText.textContent='All eight pairs found in '+S.moves+' moves.';
      winEl.classList.add('show');
      tone(523,.1);setTimeout(()=>tone(659,.1),120);setTimeout(()=>tone(784,.2),240);
    }
  }else{
    S.lock=true;
    setTimeout(()=>{a.classList.remove('up');b.classList.remove('up');S.lock=false;S.first=null;},900);
  }
  update();
}

document.getElementById('newgame').addEventListener('click',()=>deal(false));

let AC=null;
function tone(f,d){
  try{
    AC=AC||new (window.AudioContext||window.webkitAudioContext)();
    const o=AC.createOscillator(),g=AC.createGain();
    o.type='sine';o.frequency.value=f;
    g.gain.setValueAtTime(.12,AC.currentTime);
    g.gain.exponentialRampToValueAtTime(.001,AC.currentTime+d);
    o.connect(g).connect(AC.destination);
    o.start();o.stop(AC.currentTime+d);
  }catch(e){}
}

function fit(){
  const r=stage.getBoundingClientRect();
  const w=Math.min(r.width,r.height*3/4);
  board.style.width=w+'px';
  board.style.height=(w*4/3)+'px';
}
window.addEventListener('resize',fit);

deal(location.hash==='#demo');
fit();
</script>
</body>
</html>

The art

{
  "game": { "name": "TURN TWO CARDS" },
  "sheet": {
    "style": "Flat vector illustration in a warm nocturne palette of deep teal, coral, amber, and cream on a flat black background; soft rim lighting, clean bold outlines, minimal flat shading, one subject centered in each cell at the same scale, no text or borders.",
    "cells": [
      { "cell": 0, "id": "axolotl", "name": "Axolotl", "role": "animal", "prompt": "A smiling pink axolotl with feathery external gills, curled in a gentle S-shape, front view.", "fact": "It regrows lost limbs, and even parts of its brain, without scarring." },
      { "cell": 1, "id": "shrimp", "name": "Mantis Shrimp", "role": "animal", "prompt": "A peacock mantis shrimp in side profile with a raised raptorial club, vivid blue and orange body bands.", "fact": "Its punch is so fast it boils the water, creating bubbles that flash light." },
      { "cell": 2, "id": "platypus", "name": "Platypus", "role": "animal", "prompt": "A platypus swimming in side profile, flat bill, webbed hind foot, dark fur with a lighter belly.", "fact": "The male's hind legs carry venomous spurs — one of only five venomous mammals." },
      { "cell": 3, "id": "tardigrade", "name": "Tardigrade", "role": "animal", "prompt": "A magnified tardigrade, plump segmented body with eight stubby clawed legs, top-down view.", "fact": "It can survive the vacuum of space, temperatures near absolute zero, and extreme radiation." },
      { "cell": 4, "id": "cuttlefish", "name": "Cuttlefish", "role": "animal", "prompt": "A cuttlefish facing forward with rippling chromatophore patterns across its skin and tentacles spread.", "fact": "It has three hearts, blue blood, and can change skin color in a tenth of a second." },
      { "cell": 5, "id": "molerat", "name": "Naked Mole-Rat", "role": "animal", "prompt": "A naked mole-rat in side profile, wrinkled pink skin, whiskers, and two large front incisors.", "fact": "It is virtually immune to cancer and does not feel pain when injected with acid." },
      { "cell": 6, "id": "jelly", "name": "Immortal Jellyfish", "role": "animal", "prompt": "A translucent jellyfish bell with four horseshoe-shaped rings inside, short trailing tentacles, glowing softly.", "fact": "When injured or old, it reverts to a polyp and starts life over — biologically immortal." },
      { "cell": 7, "id": "eel", "name": "Electric Eel", "role": "animal", "prompt": "An electric eel coiled in a loose spiral, yellow-blue arcs of electricity crackling along its body.", "fact": "It can discharge up to 860 volts — enough to stun a horse." },
      { "cell": 8, "id": "back", "name": "Card back", "role": "back", "prompt": "A symmetrical ornamental card-back pattern: a lattice of small animal silhouettes — fish, bird, beetle, leaf — in muted gold and teal, with a centered medallion." }
    ]
  },
  "extras": [ { "id": "table", "aspect": "16:9", "prompt": "A dark wooden table surface seen from directly above, warm amber lamplight from the upper left, subtle wood grain, deep soft shadows at the edges, flat photographic style." } ]
}

The notes

Before the art arrives: each face-up card shows a colored orb (unique hue per animal) with the animal's name beneath it, and face-down cards show a CSS diagonal-stripe pattern — the game is fully playable with no image.
On a win: a translucent overlay reads "YOU WIN — All eight pairs found in N moves," with a three-note Web Audio arpeggio; the overlay is click-through so the New game button stays reachable.
Mismatch delay: 900 ms — long enough to actually register both faces (and commit them to memory), short enough that the board never feels frozen; the board is locked during the pause so no third card can be flipped.
Fact sources: high confidence — all eight are well-documented: axolotl limb/brain regeneration, mantis-shrimp cavitation sonoluminescence, platypus spur venom (one of ~5 venomous mammals), tardigrade survival in space vacuum (2007 FOTON flight), cuttlefish three hearts / hemocyanin / chromatophore speed, naked mole-rat cancer resistance and acid-pain studies, Turritopsis reversion to polyp, and the measured 860 V electric-eel discharge.

Attachments

qwen/qwen3.8-27b — page