B00

King's Pawn Game

Open in Lichess
Share: X Reddit Telegram Facebook
Play from here → Click pieces to play, or use ← / → arrows.

Overview

King's Pawn Game is a major root opening in the Semi-Open Games family (ECO B00). It serves as the entry point for a wide subtree of named variations.

The Semi-Open Games group covers semi-open games — replies to 1.e4 where Black declines the symmetrical 1…e5 in favour of an asymmetric pawn structure.

The line arises from 1 ply — specifically the moves 1. e4.

17 distinct sub-variations branch from this opening; prominent examples include Alekhine Defense, Barnes Defense, Borg Defense, and others.

Across every depth of the tree this branch holds 755 documented sub-variations, reflecting decades of analytical work.

Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.

ECO code
B00
Group
Semi-Open Games (B)
Plies
1
Direct variations
17
Total in subtree
755

This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.

Statistics from Lichess

Loading…

Description

Write a description

Markdown supported (headings ###, bold, lists, links). Submissions are reviewed before publishing.

Variations (17)

Show all 755 sub-variations (full subtree)

Loading sub-variations…