Master Chess

What is Master Chess?

Master Chess is a free browser chess game that follows standard chess rules. Each side starts with 16 pieces on an 8x8 board, White moves first, and the goal is to checkmate the enemy king. You can practice against the computer at different strengths or share one screen for a 2-player game with a friend, with no download or account needed.

How each chess piece moves

If you are learning how to play chess, start with the six piece moves. Pieces cannot jump over other pieces except for the knight, and you can never land on a square occupied by your own piece. Landing on an opponent’s square captures that piece.

• King: one square in any direction — forward, backward, sideways, or diagonal. The king can never move into check.
• Queen: any number of squares in a straight line — horizontal, vertical, or diagonal. It is the most powerful piece.
• Rook: any number of squares horizontally or vertically. Rooks are strongest on open files and when they protect each other.
• Bishop: any number of squares diagonally. Each bishop stays on the same color for the whole game.
• Knight: moves in an L shape — two squares in one direction, then one square sideways. It is the only piece that jumps over other pieces.
• Pawn: moves forward one square, but captures one square diagonally forward. From its starting rank a pawn can move two squares forward. Pawns never move or capture backward.

Use the pawn move carefully: a pawn blocked directly ahead cannot move, and that two-square first move can create an en passant capture, explained below.

Special rules: castling, en passant, and promotion

These three special moves confuse most beginners, but they are part of full-rules chess:

• Castling: the king moves two squares toward a rook, then that rook jumps to the square beside the king. It is the only move that moves two pieces at once. Castling kingside is shorter; castling queenside goes through the queen’s side. It is generally allowed only if the king and that rook have not moved, there are no pieces between them, and the king is not in check and does not pass through or land on an attacked square. Castle early to get your king safer and bring a rook into play.
• En passant: if an enemy pawn jumps two squares and lands beside your pawn, you can capture it as if it had moved only one square. You move diagonally to the skipped square and the jumping pawn is removed. This option is available only on the very next move.
• Promotion: when a pawn reaches the far rank it must change into a queen, rook, bishop, or knight of the same color. Queen is the usual choice because it is strongest, but a knight or rook can be better to give check or avoid stalemate. You are not limited to captured pieces — having two queens is legal.

Controls: how to move pieces on desktop and mobile

Master Chess uses simple click and tap controls:

• Desktop: click one of your pieces to select it, then click a highlighted square to move there.
• Mobile and tablet: tap a piece to select it, then tap the destination square to move.

Watch for legal-move help. Selectable pieces usually show dots for quiet moves and rings or highlights for captures. If an expected move is not shown, it is not legal in that position — most often because the king would be left in check, castling rights are gone, the castling path is attacked, or the en passant window has passed. Tap or click another square to cancel the selection, then pick a different piece.

Game modes: vs computer or 2 players on the same device

Choose the mode that fits your session:

• Vs computer: good for learning rules, practicing openings, and testing tactics alone. Typical choices are Easy, Medium, and Hard, plus White or Black. Easy usually looks only one move ahead and misses deeper tactics, Medium plays more solid positional moves, and Hard searches deeper and punishes hanging pieces.
• 2 Players on the same device: good for playing a friend on one phone, tablet, or computer. This is pass-and-play — White moves from the bottom, then you hand over or share the screen for Black’s turn. No account or online matchmaking is needed.

Which should you pick? Start against Easy as White if you are new, then move to Medium when you win comfortably. Switch to Hard when Medium feels too easy. Pick 2-player mode when a friend is with you; it is also a relaxed way to learn together because you can talk through moves and undo mistakes.

Check, checkmate, stalemate, and draws

Knowing how games end saves many wins:

• Check: your king is under attack. You must answer on your next move by moving the king, capturing the attacker, or blocking the attack. You cannot castle out of check.
• Checkmate: the king is in check and there is no legal way out. The game ends immediately and the side giving mate wins. The king is not actually captured.
• Stalemate: the player to move has no legal move, but the king is not in check. The game ends immediately as a draw, even if one side is far ahead in material.

Stalemate is the classic beginner trap: when you are winning, do not trap the lone king without giving check. Always leave it a safe square until you are ready to mate. Other common draws are agreement, threefold repetition, fifty moves without a pawn move or capture, and positions with too little material to mate, such as king versus king.

Beginner strategy: simple opening and tips to win more

You do not need long theory to play better. Use these three opening principles for the first 8–10 moves:

1. Control the center with pawns on e4 or d4 and pieces pointing at the middle. Central control gives your pieces room and limits your opponent.
2. Develop knights and bishops early instead of moving the same piece twice or bringing the queen out too soon. An early queen becomes a target that helps the opponent develop while chasing it.
3. Get your king safe by castling early. A king stuck in the center is the most common reason beginners get mated.

A simple starter as White is e4, Nf3, Bc4, then castle. This is the Italian Game idea: each move fights for the center, develops a piece, and prepares castling. As Black against e4, answering e5 and developing knights and bishops toward the center with early castling follows the same plan.

For the middlegame, remember material values — pawn 1, knight 3, bishop 3, rook 5, queen 9 — and do not leave pieces undefended. Before each move, check whether your destination is defended and whether you are leaving something hanging. Learn to spot forks where one piece attacks two at once, pins where a piece cannot move without exposing a more valuable piece, skewers which are the reverse, and discovered attacks where moving one piece uncovers an attack from another. Knights are especially good forkers because their jumps cannot be blocked. When ahead, trade pieces to simplify; when behind, keep the position complicated and look for tactics.

Avoid these fast losses: pushing the f-pawn early and opening the diagonal to your king, grabbing pawns with the queen on move three, ignoring development past move ten, and delaying castling one move too long.

Play free unblocked on Chromebook, school, and phone

Master Chess runs in a modern browser with no install. That makes it a good fit for school breaks, Chromebooks, and phones:

• Free to open and play, with no download or sign-up for a quick game.
• Works in current Chrome, Edge, Firefox, and Safari, including the Chrome build on school-issued Chromebooks.
• Touch controls work on mobile and tablet; rotate to landscape and use fullscreen for a clearer board.

If a school or work network filters game sites, availability depends on that network’s allowlist — no browser game can promise to bypass a DNS block. Where general web traffic is allowed, the board normally loads quickly because the game logic runs locally in the page.

Quick FAQ

Is Master Chess free?
Yes, you can open it in your browser and play against the computer or a friend without paying.

Can two people play on one device?
Yes, use 2-player pass-and-play mode and take turns on the same screen.

What difficulty should beginners choose?
Start on Easy as White, then step up to Medium and Hard as your defense and tactics improve.

Why is my move not allowed?
The board only shows legal moves. A move is illegal if it leaves your own king in check, castling conditions are not met, or an en passant chance has expired.