stir.html · 60 lines
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
html,body{margin:0;padding:0;background:#f2ead9;}
.scene{position:relative;width:400px;height:420px;margin:0 auto;overflow:hidden;}
.saucer{position:absolute;left:60px;top:300px;width:280px;height:70px;background:#c94f3d;border-radius:50%;z-index:1;}
.saucer::after{content:"";position:absolute;left:90px;top:16px;width:100px;height:26px;background:#a83c2d;border-radius:50%;}
.cup{position:absolute;left:110px;top:135px;width:180px;height:175px;background:#fff;
border-radius:6px 6px 95px 95px / 6px 6px 135px 135px;
box-shadow:inset 0 14px 0 rgba(0,0,0,0.05);z-index:2;}
.handle{position:absolute;left:282px;top:170px;width:50px;height:75px;border:13px solid #fff;border-radius:50%;
border-left-color:transparent;z-index:2;}
.arm{position:absolute;left:120px;top:-22px;width:160px;height:300px;z-index:7;
animation:stir 2.4s linear infinite;}
.stick{position:absolute;left:90px;top:0;width:9px;height:162px;
background:linear-gradient(90deg,#bdbdbd,#f2f2f2,#a8a8a8);border-radius:5px;
transform:rotate(-18deg);transform-origin:50% 100%;}
.bowl{display:none;position:absolute;left:112px;top:134px;width:40px;height:20px;opacity:.4;
background:radial-gradient(ellipse at 45% 35%,#f7f7f7 35%,#b5b5b5 75%,#8f8f8f);
border-radius:50%;transform:rotate(-18deg);z-index:6;}
@keyframes stir{
0%{transform:translate(0,0);}
25%{transform:translate(30px,8px);}
50%{transform:translate(0,16px);}
75%{transform:translate(-30px,8px);}
100%{transform:translate(0,0);}
}
.rim{position:absolute;left:102px;top:124px;width:196px;height:42px;background:#fff;border-radius:50%;z-index:4;}
.coffee{position:absolute;left:116px;top:131px;width:168px;height:31px;background:#4a2a12;border-radius:50%;
overflow:hidden;z-index:5;}
.crema{position:absolute;inset:0;border-radius:50%;
background:radial-gradient(ellipse at 50% 45%,#6b4322 55%,#4a2a12 100%);}
.swirl{position:absolute;left:20px;top:6px;width:120px;height:19px;border:5px solid #c08a4a;border-radius:50%;
transform-origin:50% 50%;animation:spin 2.4s linear infinite;}
.swirl2{position:absolute;left:45px;top:8px;width:70px;height:14px;border:4px solid #d9ac6e;border-radius:50%;
transform-origin:50% 50%;animation:spin 2.4s linear infinite reverse;}
@keyframes spin{from{transform:rotate(0deg);}to{transform:rotate(360deg);}}
</style>
</head>
<body>
<div class="scene">
<div class="saucer"></div>
<div class="cup"></div>
<div class="handle"></div>
<div class="arm">
<div class="stick"></div>
<div class="bowl"></div>
</div>
<div class="rim"></div>
<div class="coffee">
<div class="crema"></div>
<div class="swirl"></div>
<div class="swirl2"></div>
</div>
</div>
</body>
</html>round 1 of 5
Repair: a stirring spoon laid across the mouth of the cup: Claude Sonnet 5.5
modelanthropic/claude-sonnet-5.5taskrepair-css-stirring-spoon@v1, checks c1, harness h1date2026-10-19rounds5 of 8 allowed, 12 minutes on the clockcost$0.0222thinkingmediumtokens78,618 in, 4,543 out, of which 3,038 reasoningtime1 min 25 s
In the drinkdecided by looking · A spoon drawn across the cup mouth in front of the rim for the whole turn fails, which is the file the run was handed.pass
Kept the brief and the loopdecided by a number, from the filepass
This cup of coffee with a spoon stirring in it was made for this board, in HTML and CSS. One thing is wrong with it: the spoon lies across the mouth of the cup instead of going into the drink, so it reads as resting on top while the coffee turns underneath. Fix that and change nothing else: the same cup, saucer, colours and movement.Frozen at v1. This model got this and nothing else.
GLM 5.3 FlashX drew this cup on 2026-10-19. The spoon's bowl sits at the back of the opening with the handle laid across it toward the near rim, so the spoon reads as resting on the cup while the coffee surface turns under it. The fix is a change of z-order: the handle has to pass behind the near rim and the bowl has to sit in the drink. Nothing in the file can be measured for it, because both arrangements use the same shapes in the same places, so the eye decides it and `unchanged` guards the rest. How it is scored, and this run's files on GitHub.