Tree path 4 levels King's Pawn Game › Sicilian Defense › McDonnell Attack › Toilet Variation
- Chess Codex
- King's Pawn Game B00
- Sicilian Defense B20
- McDonnell Attack B21
- Toilet Variation B21 you are here
Sicilian Defense: McDonnell Attack, Toilet Variation
Overview
Sicilian Defense: McDonnell Attack, Toilet Variation is a specific line in the Semi-Open Games family (ECO B21), arising from a recognised theoretical position.
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 5 plies — specifically the moves 1. e4 c5 2. f4 d5 3. Nc3.
The line refines Sicilian Defense: McDonnell Attack, which traces back to the root opening King's Pawn Game.
Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.
- ECO code
- B21
- Group
- Semi-Open Games (B)
- Plies
- 5
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
119,248 games · White 47.7% / Draw 4.3% / Black 48.0%
| Moves | Games | W / D / B |
|---|---|---|
| d4 | 63,745 | |
| dxe4 | 46,896 | |
| Nf6 | 3,835 | |
| e6 | 3,671 | |
| Nc6 | 696 | |
| a6 | 87 | |
| g6 | 77 | |
| e5 | 73 |
Source: Lichess Opening Explorer · cached 2026-09-26 01:07:33
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