How to Analyze a Chess Position

You don’t need a paid engine or an account to check who’s winning a chess position. The free LK Forge chess game has a built-in Analyze button that evaluates any position on the board — it names the best move, shows an evaluation bar for who stands better, gives the likely continuation, and detects forced mates. Everything runs in your browser, so nothing is uploaded. This guide walks through how to use it and how to read what it tells you.

Analyze any position in three steps

1. Open the board. Go to the chess game. You can analyze at any point — against the computer, in 2-player mode, or mid-game.
2. Reach the position. Play the moves you want to study. To set up a specific line or opening, switch the mode to 2 Players and play both sides until the position is on the board.
3. Press Analyze. The analyzer searches for about a second and fills in the result: the evaluation, the best move (highlighted on the board), the likely line, and the search depth.

Reading the evaluation

The analysis panel shows a few things at once:

• Evaluation bar & score — always from White’s side. +1.35 means White is up about 1.35 pawns; -0.80 means Black is better; around 0.00 is level. The bar fills toward whichever side is ahead.
• Best move — the strongest move in the position, shown in standard notation (e.g. Nf3) and highlighted on the board.
• Likely line — the principal variation, i.e. the moves the engine expects if both sides play their best from here.
• Mate detection — if a forced checkmate exists, the score is replaced by #N — mate for White (or Black), where N is the number of moves to mate.
• Depth & nodes — how deep the search went and how many positions it examined, so you can see how hard it looked.

What powers it

The analyzer isn’t a lookup or a chatbot — it’s a real chess engine running client-side: a negamax search with alpha-beta pruning, quiescence search to avoid horizon blunders, null-move pruning, and a positional evaluation of material, king safety, pawn structure and piece activity. It’s the same engine the computer opponent uses, so the “best move” it shows is genuinely the move it would play. It’s strong and fast for casual analysis and learning, though it isn’t a maximal-strength engine like Stockfish.

That’s all there is to it — open the chess board, reach a position, and press Analyze to see the evaluation, the best move and the line. For more of the same, the Solvers & Analyzers hub gathers every LK Forge solver and game analyzer in one place.