CHESS WORKBENCH A private analysis room in your browser

YOUR GAME, FRAME BY FRAME

See the game
beneath the moves.

Paste a game. Watch the board unfold. See where the position turned, what the engine preferred, and which choices shaped the result.

ANALYSIS RUNS HEREOn your device.

Your notation stays in this browser. After the engine files load, review needs no server account or game upload.

01 / REPLAY

On the board

BlackWaiting for a game
WhiteReady to begin
Starting position
02 / NOTATION

Bring a game in

PGN · MOVE TEXT

Standard algebraic moves and PGN files work. Analysis continues as you explore the board.

03 / THE MOMENT

Position insight

START
POSITION SCORE
Awaiting analysisPositive favors White
Negative favors Black
No move selected

Enter notation to see the game. Run analysis to compare each move with the engine's preferred continuation.

MATERIALEven
MOVE0 / 0
04 / POSITION SCORE

The shape of the game

White edge Black edge
05 / EVERY CHOICE

Move sheet

NO GAME

Your moves will appear here.

06 / GAME AT A GLANCE

Decision summary

Analyze a game to compare each side's decisions.

ABOUT THE LABELS

An engine’s view,
with room for nuance.

Move labels are estimates based on expected score lost against the engine’s top line. Brilliant looks for a sound piece sacrifice; Great looks for a clearly stronger only move. Search depth and device speed can change a result.

The position score is shown in pawns from White’s side. A single game cannot establish a player’s rating.

View source and method ↗