Build the position.

Drag venues onto the three slots. Belts carry borrowed CDT out, yield comes back. Then shock it — the shock is the only thing that grades you, because a build that earns more and dies is not a better build.

Templates

Venues mock

stablecoinone lending panic drains them together
liquid stakingone staking queue shuts them all
synthetic dollarone funding flip reaches every one

Drag onto a slot. Three per position — a contract limit, not a preference. Shocks travel by what a venue holds, so three venues of the same class is one bet, not three.

Aave V3 stablecoin

4.2%recall 97%

lending, holds USDC

Morpho Vault V2 stablecoin

7.6%recall 90%

182 real positions run this

Fluid stablecoin

7.5%recall 85%

lending, holds USDC

USD3 stablecoin

6.8%recall 80%

Yearn V2 stablecoin

8.2%recall 62%

unwinds on a lag

wstETH vault liquid staking

9.4%recall 70%

staking yield, depeg risk

rETH vault liquid staking

8.8%recall 66%

staking yield, depeg risk

PT (fixed) synthetic dollar

14.5%recall 12%

best rate on the board, no exit until maturity

sUSDe synthetic dollar

11.8%recall 30%

funding rate, 7-day cooldown

Source

1.00 BTC

$95,000

Cdp

Your position

$38,000 CDT out

Empty slot
Empty slot
Empty slot

Yield goes to

Readout mock

Throughput

−$1,140

no venues placed

Loan to value

40%

borrow cap 60% · liquidated past 73% · a breach repays you back to 60%

Stress test

—

nothing placed yet

Bitcoin in1.00 BTC
Draw40% LTV
The gauntletHow a floor works

Bitcoin moves and your LTV jumps. If it crosses the line the engine recalls whatever is liquid in your venues and puts it against the debt — only enough to get back under the line, not the whole loan — and only the shortfall is taken out of your bitcoin. So a venue’s recall number is the whole game: it is the share that actually comes back when it is asked, cooldowns and queues already priced in. That is why the highest-yield board is so rarely the best board.

Challenge

Sun Sep 27 · seed #464E · same floors for everyone today · new challenge at 00:00 UTC

Build a board, then take it through the gauntlet. Each floor is a real episode or a constructed one.

Floor

—

Net made

+$0

Bitcoin kept

1.000 BTC

The gauntlet

not started

Fifteen floors, one sweep. A floor you survive pays and carries forward; a floor that would have killed you is voided and marked red — the run walks on either way.

$0

nothing running

Is it luck?How calibration is scored

Before each floor you post the odds your board holds. Afterwards the floor either sells bitcoin or it does not, and the gap between what you said and what happened is squared and averaged — that is a Brier score. Lower is better. 0.25 is what you get by always saying 50%, so the figure shown is how far past that you are: above zero means your confidence carries information, below it means you are sure about the wrong things. It stays hidden until 20 forecasts have resolved, because a score off five is noise wearing a decimal point.

Calls made

0 / 20

Call a floor before it runs and this starts answering.

LeaderboardHow ranking works

Ranked by floors survived, then by what you actually made — yield banked minus the market value of the bitcoin you had to sell. Gross yield never ranks on its own: banking $1,070 while selling 0.7 BTC is a loss wearing a profit’s clothes, and floors gate everything so nobody out-earns a death. Only runs on the daily seed rank — everyone faces the same drawn floors, so the board is a fair fight. A run on any other seed still settles and still teaches, but it sits below the line as practice, unranked. The two reference rows are methods, not firms, and are illustrative lines rather than anyone’s track record. They disagree on purpose: one constrains how much you borrow and lets the venue mix be wide, the other constrains which venues you will touch and sizes up on the strength of that vetting. Both are re-run against the floors the loaded seed actually drew — through the same engine as your board — so their lines move with the challenge: a method that cleared eight floors on one seed can die on three the next.

#

Build

Floors

Net made

Banked − sold mock

1

Reference — sized to depthborrow capped to absorbable size · seed #464E

12 / 15

−$24,180

−$9,211 − $14,969 · 90% BTC

2

Reference — narrow listfew vetted venues, sized larger · seed #464E

11 / 15

−$37,247

−$12,131 − $25,117 · 85% BTC