King's Indian with ...c5
Main line: 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5
Against White's most aggressive King's Indian setups — the Saemisch, the Four Pawns — the classical ...e5 break can play into White's hands. This course teaches the other weapon: the ...c5 strike, steering the game into Benoni-style structures where Black's counterplay comes fastest.
Key ideas
- Meet the Saemisch and Four Pawns with ...c5, hitting d4 where those setups are weakest.
- Play the resulting Benoni structures with confidence: queenside majority, dark-square pressure, active pieces.
- Use the g7-bishop's full power — in the ...c5 structures its diagonal opens rather than closes.
- Keep one coherent repertoire: the same strike works against White's whole aggressive family.
Typical plans and structures
After ...c5, play typically continues d5 and now Black has the classic Benoni toolkit: ...e6 and ...exd5 for the majority structure, or gambit-flavored ...b5 breaks against the Saemisch's slow development. Knights route via a6-c7 or d7 toward b5 and e5, the queen finds a5 or b6, and the half-open files do the talking. The course pairs each White setup with its correct ...c5 timing — the difference between a strong strike and a premature one.
Who should play it
King's Indian players who want the sharpest practical answer to the Saemisch and Four Pawns, and anyone who enjoys Benoni-style counterattacking structures.
Frequently asked questions
Why play ...c5 instead of ...e5 against the Saemisch?
The Saemisch's f3 setup is built to weather the kingside storm that follows ...e5 — but it develops slowly, and ...c5 punishes exactly that. Opening the queenside and the long diagonal hits White before the attacking machine assembles.
Do I need to know Benoni theory to play this repertoire?
You inherit Benoni-style structures, but through a King's Indian move order that dodges White's sharpest direct Benoni tries. The course teaches the structures from scratch — majority play, the ...b5 break, dark-square strategy — assuming no prior Benoni knowledge.
Does the ...c5 plan work against the Four Pawns Attack?
It is the main line against it: after 5.f4 O-O 6.Nf3 c5 7.d5 e6, Black's counterplay in the center and on the e-file punishes White's ambitious pawn front. These positions score well for Black at every level.
Learn the King's Indian with ...c5 with AI feedback
This page is an interactive ChessMind AI course: a GM-authored repertoire you study move by move on a real board, then practice against a human-like AI opponent with instant feedback and spaced-repetition review, so the key positions actually stick. Prefer background reading first? Start with the King's Indian with ...c5 opening guide or browse all opening courses.