Tree path 2 levels King's Pawn Game › Borg Defense
- Caissa Codex
- King's Pawn Game B00
- Borg Defense B00 you are here
Borg Defense
Overview
Borg Defense is a named branch in the Semi-Open Games group of chess theory, classified under ECO B00.
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 2 plies — specifically the moves 1. e4 g5.
It branches immediately from King's Pawn Game in the opening tree.
3 named variations grow from this line, including Borg Gambit, Troon Gambit, Zilbermints Gambit.
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
- 2
- Parent
- King's Pawn Game
- Direct variations
- 3
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
1,112,492 games · White 51.7% / Draw 3.4% / Black 44.9%
| Moves | Games | W / D / B |
|---|---|---|
| d4 | 680,199 | |
| Nf3 | 128,525 | |
| Bc4 | 93,776 | |
| Nc3 | 89,288 | |
| d3 | 33,523 | |
| h4 | 13,835 | |
| f4 | 13,664 | |
| h3 | 10,670 |
Source: Lichess Opening Explorer · cached 2026-09-26 00:49:29
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Submissions are reviewed before publishing.