The Sicilian Defense meets 1.e4 with 1…c5: your c-pawn watches d4 from the side, and when your opponent pushes the d-pawn to d4, you trade it off. You come out with two central pawns against one and a half-open c-file. Rated 900 to 1700, you score 50.1% with it (N = 2,331,565 Lichess games, September 2026).
Lichess games from September 2026 (30,577,162 rated 900 to 1700) and 31,791 over-the-board games rated 2300+ from the last 12 months. Data updated: October 14, 2026.
At a glance
Moves
1.e4c5
ECO
B20, B27, B50
Amateur games
2,331,565
Of all games rated 900 to 1700
7.6%
White's score
Lichess 900–1700: 49.9% · Online, 2200+: 52.5% · Over the board, 2300+: 54.4%
Evaluation after 1…c5
+0.28
327 named lines in this family; 8 with their own page.
By rating
The opening's share in each Lichess rating band.
4.5%900–1100
5.9%1100–1300
7.8%1300–1500
9.9%1500–1700
What amateurs play and what strong players play
After 1.e41…c5, 47 opponents in 100 at your level play 2.f3, 15 bring the bishop out with 2.c4 and 9 push 2.d4. Among strong online players, 2.f3 climbs to 67 in 100, with 2.c3 next at 13. After 2.f3, the most common reply at your level is 2…c6, in 50 games out of 100. Strong players prefer 2…d6, in 39 out of 100, ahead of 2…c6 at 29 and 2…e6 at 22.
After 1.e4c5 · N = 2,243,419
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
f3
47.2%
50.4%
67.2%
86.8%
c4
15.3%
48.5%
no data
no data
d4
9.2%
50.0%
5.5%
0.7%
c3
7.8%
50.0%
12.7%
6.4%
c3
5.6%
52.1%
7.2%
5.0%
f4
4.2%
50.0%
1.1%
no data
a3
no data
no data
1.0%
no data
b3
no data
no data
no data
0.2%
e2
no data
no data
no data
0.2%
After 1.e4c52.f3 · N = 1,068,779
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
c6
49.6%
50.6%
29.0%
24.2%
d6
24.1%
49.9%
39.1%
48.2%
e6
16.2%
49.4%
22.0%
22.6%
g6
4.4%
49.4%
5.4%
2.7%
a6
2.5%
50.4%
2.9%
1.6%
f6
0.9%
53.5%
1.2%
0.8%
After 1.e4c52.f3d6 · N = 261,999
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
d4
38.4%
50.6%
69.6%
70.7%
c4
27.9%
48.9%
3.1%
3.0%
c3
10.0%
49.3%
4.2%
3.6%
c3
9.3%
52.8%
6.5%
2.1%
b5+
6.0%
50.0%
13.1%
20.7%
d3
1.6%
47.2%
0.9%
no data
After 1.e4c52.f3d63.d4 · N = 101,744
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
cxd4
90.4%
49.9%
97.6%
98.2%
c6
2.3%
58.4%
0.0%
no data
f6
2.3%
53.9%
2.3%
1.8%
b6
1.1%
58.0%
no data
no data
g4
1.1%
57.3%
no data
no data
e6
0.6%
54.2%
no data
no data
c4
no data
no data
0.0%
no data
d7
no data
no data
0.0%
no data
After 1.e4c52.f3d63.d4cxd4 · N = 92,834
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
xd4
84.4%
50.0%
90.6%
95.0%
xd4
9.5%
50.2%
7.4%
5.0%
c3
2.6%
51.3%
1.6%
no data
c4
1.9%
47.5%
0.2%
no data
g5
0.9%
42.4%
no data
no data
b5+
0.5%
47.5%
0.2%
no data
d3
no data
no data
0.0%
no data
What to do here
The strong players' line runs 2.f32…d63.d43…cxd44.xd44…f65.c35…a6. Everything turns on one trade: your c-pawn for your opponent's d-pawn. After 4.xd4, your opponent has only the e4 pawn left in the centre, while you keep two, your d- and e-pawns. Your rooks also get the half-open c-file, and theirs get the d-file.
1…c5 covers d4 without putting a pawn in the centre. So when 3.d4 arrives, there is nothing to defend: you just take. Strong players do it in 98 online games out of 100, and at your level 90 do.
2…d6 comes before the knight because the d6 pawn controls e5. Once you play 4…f6, the e4 pawn cannot advance to e5 to kick the knight, since you would take it.
4…f6 attacks e4, which no piece guards at that moment, and 5.c3 covers it while developing. Then 5…a6 keeps the f1 bishop and the knights on c3 and d4 off b5. That move gives you the Najdorf; play 5…g6 instead and you are in the Dragon. Both have their own pages.
At your level the sequence goes off track early. After 2…d6, only 38 opponents in 100 open up with 3.d4, against 70 in 100 strong online players, and another 28 go 3.c4. Then there is no trade on d4, but your c5 pawn still covers the square: to get the d-pawn there, your opponent first has to back it with c3, the idea behind the Alapin.
Your side drifts too. After 4.xd4, only 54 players in 100 at your level hit e4 with 4…f6, against 96 in 100 strong players. Without that attack, your opponent has nothing to defend and can develop at their own pace.
The strong players' line
The most repeated move in games rated 2200+ online and 2300+ over the board, while at least 20 games play it
Move
Strong games
Chosen by
2.f3
280,096
67.6%
2…d6
190,867
39.3%
3.d4
75,046
69.6%
3…cxd4
52,265
97.6%
4.xd4
51,284
90.8%
4…f6
46,559
96.4%
5.c3
44,823
94.1%
5…a6
44,262
65.6%
The mistakes that cost the most games
c6Mistake
A mistake. After 2.d4, 2…c6 leaves the d4 pawn alone, and your opponent pushes it. 3.d5 kicks the knight back with 3…b8, and after 4.f44…d65.f35…g6 they have pawns on d5, e4 and f4 while your knight has spent two moves going home. Play 2…cxd4. You score 44.4 against 51.3.
6 in 100 play it in this position. It gives away 1.8 pawns of advantage. It scores 44.4%; cxd4 scores 51.3%.
e6Mistake
A mistake. After 3.d4, 3…e6 fails to take on d4, and the pawn marches at your knight: 4.d54…a55.d65…b66.c36…b7. The d6 pawn takes c7 and e7 from you, your knight sits on the rim, and your f8 bishop can only capture it by giving itself up to the queen. Play 3…cxd4. You score 43.6 against 49.3.
6 in 100 play it in this position. It gives away 2.1 pawns of advantage. It scores 43.6%; cxd4 scores 49.3%.
c6Mistake
A mistake. After 2…e63.d4, 3…c6 reaches the previous mistake's position by another move order. Then 4.d54…a55.d65…a66.e56…b6: the e5 pawn props up d6, which leaves your f8 bishop with no safe square. Play 3…cxd4. At your level 8 in 100 choose it, and you score 45 against 50.8.
8 in 100 play it in this position. It gives away 2.1 pawns of advantage. It scores 45.0%; cxd4 scores 50.8%.
d6Mistake
A mistake. After 2.d4, 2…d6 skips the trade, and 3.dxc5 swaps pawns. Recapture with 3…dxc5 and your opponent can swap queens with check, costing you castling, so the queen takes back instead: 3…a5+4.c34…xc55.e35…a5. Three queen moves while your opponent develops. Play 2…cxd4. You score 43.8 against 51.3.
3 in 100 play it in this position. It gives away 1.2 pawns of advantage. It scores 43.8%; cxd4 scores 51.3%.
d6Inaccuracy
An inaccuracy, but one that costs you at this level. 3.c3 prepares 4.d4 so a pawn can recapture, and 3…d6 does nothing about it. After 4.d44…e65.d55…exd56.exd56…ce7, your knight retreats and blocks the f8 bishop. Play 3…d5, hitting e4 at once. 18 in 100 at your level go wrong here; you score 45.8 against 50.4.
18 in 100 play it in this position. It gives away 0.6 pawns of advantage. It scores 45.8%; d5 scores 50.4%.
g4Mistake
A mistake. After 3.c4, 3…g4 pins the f3 knight to the queen, but only your king guards f7. Then 4.xf7+4…xf75.g5+5…e86.xg46…d7: the knight jumps out with check, the queen picks up the bishop, and you are a pawn down with no castling. Play 3…f6. You score 46.6 against 52.
3 in 100 play it in this position. It gives away 2.4 pawns of advantage. It scores 46.6%; f6 scores 52.0%.
How players castle
Lichess 900–1700 · the 6 most frequent combinations
White
Black
Games
O-O
O-O
1,228,668
O-O
Not castled
371,539
Not castled
Not castled
232,425
O-O-O
O-O
162,017
Not castled
O-O
158,979
O-O
O-O-O
76,650
Over the board, 2300+ · the 6 most frequent combinations
Trade your c-pawn for your opponent's d-pawn. After 2.f32…d63.d43…cxd44.xd4, you have two central pawns against one and a half-open c-file. The d6 pawn controls e5, so 4…f6 can attack e4 without being kicked, and your opponent usually defends it with 5.c3.
Which Sicilian variations will I face at my level?
The most common is 2.f3, which 47 opponents in 100 at your level play. Another 15 go 2.c4, the Bowdler Attack, where you score 51.5 in 100. After 2…d6, only 38 in 100 open the centre with 3.d4, against 70 strong players in 100, so the road to the Najdorf and the Dragon opens far less often for you.
Is the Sicilian Defense good for beginners?
It works if you remember one rule: when the d-pawn reaches d4, take it with your c-pawn. Leaving it there is the most common mistake on this page: after 2.d42…c6 you score 44.4, against 51.3 for 2…cxd4. The Sicilian appears in 4 games in 100 between 900 and 1100, and in 10 between 1500 and 1700.