Endgame Arena

Start straight in an endgame — no opening, no middlegame.

The rules

The game begins from a reduced position with kings, pawns and a small number of pieces. Standard rules throughout.

Why it is worth playing

Most players study openings and lose in endgames. Endgame Arena removes the first forty moves so you spend your whole session on the phase that actually decides games. It is the highest-return training format in chess.

Four plans that win games

Activate the king immediately

The single most common endgame error is leaving the king at home. Here you get to practise fixing that from move one.

Rooks behind passed pawns

Yours and theirs. It is the most reliable rule in rook endgames and this is where you drill it.

Create a passed pawn, then escort it

Every endgame plan reduces to this. Which majority, which file, which escort.

Count everything

Endgames are calculation, not judgement. The rule of the square, the opposition, the tempo count — they are arithmetic and arithmetic can be practised.

Mistakes that lose games

What it teaches you about standard chess

The phase that decides games

Most players spend their study time on openings and lose in endgames. This format inverts that. King activity, rook placement and passed-pawn technique get drilled every single game instead of once a fortnight.

That is the argument for variants generally, and it is worth stating plainly: a variant removes part of chess so that what remains gets your full attention. Played casually they are a pleasant break. Played deliberately — naming the skill first, then going back to a standard game and finding the same idea — they are the most efficient training available, because you are practising one thing at a time instead of everything at once.

Who it suits

Anyone rated between 800 and 1800 who wants the fastest available improvement. This is where the rating points are.

You can play it right now on any device, in a browser, against a full engine — no download and no account. If you have never tried a variant before, give it three games rather than one: the first is spent learning the rules, and the second is where it starts being chess.

Common questions

What are the rules of Endgame Arena?

The game begins from a reduced position with kings, pawns and a small number of pieces. Standard rules throughout.

Is Endgame Arena hard to learn?

The rules take about two minutes. Anyone rated between 800 and 1800 who wants the fastest available improvement. This is where the rating points are.

What is the best strategy in Endgame Arena?

Activate the king immediately. The single most common endgame error is leaving the king at home. Here you get to practise fixing that from move one.

Where can I play Endgame Arena free?

Grandmaster Gains has Endgame Arena playable in the browser against a full engine, free and with no sign-up, alongside nineteen other variants.

Will playing Endgame Arena improve my normal chess?

The phase that decides games. Most players spend their study time on openings and lose in endgames. This format inverts that. King activity, rook placement and passed-pawn technique get drilled every single game instead of once a fortnight.

What is the biggest mistake beginners make in Endgame Arena?

Do not trade into a worse pawn structure. Piece trades in an endgame are structural decisions, not simplifications.

More variants

• Mirror Random — A randomised back rank, identical for both sides.
• Double Random — Both back ranks randomised independently — the armies do not match.
• Peasants' Revolt — One side has a king and eight pawns; the other has a king, four knights and a pawn.
• Light Brigade — One side gets a queen and pawns; the other gets minor pieces and pawns.