OnlyFENs

SideWhite to moveSourceChecking databaseDepth--

Known-position lookupFallback ready

Preparing the position

Checking known positions...

Checks known positions instantly, falls back to local engine.

Checking the shared database first. If there is no match, the local engine takes over automatically.

SideReadingSourceChecking databaseDepth--

Known-position lookupFallback ready

Preparing the position

Checks known positions instantly, falls back to local engine.

Checking the shared database first. If there is no match, the local engine takes over automatically.

Step 1 of 2. White to move. Judge who stands better.

White to move. The board is read-only while you judge the position.

Engine evaluation remains hidden until the reveal step.

SideWhite to moveSourceKnown databaseDepth56

Step 1 of 2 · Judge the position

Start broad. Decide who stands better before you reach for the move.

SideWhite to moveSourceChecking databaseDepth--

Known-position lookupFallback ready

Preparing the position

Checks known positions instantly, falls back to local engine.

Checking the shared database first. If there is no match, the local engine takes over automatically.

Step 1 of 2. White to move. Judge who stands better.

White to move. The board is read-only while you judge the position.

Engine evaluation remains hidden until the reveal step.

SideWhite to moveSourceKnown databaseDepth56

Step 1 of 2 · Judge the position

Start broad. Decide who stands better before you reach for the move.