The Closed Sicilian starts 1.e41…c52.c3. Instead of opening the center with a pawn on d4, you play 3.g3, put your bishop on g2 and your pawn on d3, and don't trade your d-pawn for the c5 pawn. That way your e4 pawn is held by the bishop, the knight and the d3 pawn, and your c3 knight also watches d5. From 900 to 1700 you score 49.9% with it (N = 159,513 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.e4c52.c3
ECO
B23, B24, B25, B26
Amateur games
159,513
Of all games rated 900 to 1700
0.5%
White's score
Lichess 900–1700: 49.9% · Online, 2200+: 53.2% · Over the board, 2300+: 51.5%
Evaluation after 2.c3
+0.23
16 named lines in this family; 1 with their own page.
By rating
The opening's share in each Lichess rating band.
0.4%900–1100
0.4%1100–1300
0.5%1300–1500
0.7%1500–1700
What amateurs play and what strong players play
After 2.c3, opponents at your level answer 2…c6 in 47 of 100 games, 2…d6 in 20 and 2…e6 in 19; against those two you score 50 and 49 of 100. Against 2…c6, players with White at your level most often go 3.f3 (42 of 100), and only 4 in 100 choose 3.g3. Strong players split between 3.g3 (27 of 100), 3.f4 (26) and 3.b5 (24). After 3.g3, 76 of 100 strong opponents reply 3…g6, but only 29 at your level do; you'll also see 3…e6 (25) and 3…d6 (19). Against 3…g6 you score 52 of 100. Against 3…d6 you score 56 of 100, and against 3…e5, which comes up in 12 of 100 games, you score 58.
After 1.e4c52.c3 · N = 176,971
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
c6
47.3%
49.7%
45.3%
47.2%
d6
19.7%
49.9%
17.2%
25.4%
e6
19.0%
49.1%
20.8%
15.5%
g6
5.4%
50.0%
7.8%
1.7%
a6
3.8%
50.4%
7.7%
10.2%
e5
2.1%
55.3%
0.4%
no data
After 1.e4c52.c3c6 · N = 83,535
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
f3
42.4%
49.3%
11.4%
21.8%
c4
16.4%
49.4%
no data
no data
f4
14.0%
51.2%
25.8%
11.8%
b5
10.6%
50.9%
23.7%
38.2%
d3
5.8%
49.2%
3.4%
no data
g3
4.3%
53.2%
26.9%
12.4%
ge2
no data
no data
5.1%
15.9%
After 1.e4c52.c3c63.g3 · N = 3,575
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
g6
29.1%
51.7%
75.9%
100.0%
e6
24.6%
51.4%
8.0%
no data
d6
18.9%
55.8%
6.7%
no data
e5
11.7%
57.6%
3.5%
no data
f6
10.8%
52.1%
3.2%
no data
a6
3.6%
52.7%
no data
no data
h5
no data
no data
1.7%
no data
After 1.e4c52.c3c63.g3g6 · N = 1,008
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
g2
96.6%
51.7%
93.7%
100.0%
d3
3.4%
47.1%
5.9%
no data
ge2
no data
no data
0.2%
no data
f4
no data
no data
0.2%
no data
After 1.e4c52.c3c63.g3g64.g2 · N = 1,018
Move
Lichess 900–1700
White's score
Online, 2200+
Over the board, 2300+
g7
100.0%
51.0%
99.1%
100.0%
b8
no data
no data
0.4%
no data
d6
no data
no data
0.3%
no data
h5
no data
no data
0.2%
no data
What to do here
The strong players' line is 2…c63.g33…g64.g24…g75.d35…d66.e3. The goal isn't to open the center. You want your e4 pawn firmly supported and your pieces ready to castle short, without trading your d-pawn for the c5 pawn. That's why it's called closed: your d-pawn stops on d3, not d4. After 2.c3 the position is close to level, 0.23 pawns in your favor, and 2…c6 is your opponent's best reply.
The reason is d4. After 2…c6 and 4…g7, your opponent hits that square three times: with the c5 pawn, the knight on c6 and the bishop on g7. A pawn of yours on d4 would face those three attackers with only your queen to defend it. With 5.d3 the pawn stays one square back, where nothing attacks it, and holds e4.
3.g3 and 4.g2 belong together. The g-pawn clears g2, and from there the bishop guards e4 along the long diagonal. That setup, the bishop on g2 behind the g3 pawn, is a kingside fianchetto. With the bishop, the knight on c3 and the pawn on d3, e4 has three defenders. Your opponent mirrors the idea with 3…g6 and 4…g7: that bishop eyes d4 and reaches all the way to your knight on c3, which the b2 pawn protects.
5.d3, the choice of 68 of 100 strong players, has a second purpose. Your bishop on c1 only touched b2 and d2, both blocked by your own pawns; with the pawn on d3 its diagonal opens. That's why 6.e3 comes right after: 48 of 100 strong players pick it there. From e3 the bishop covers d4, the square your opponent is eyeing, and looks toward h6 through f4 and g5. In between, 5…d6 defends the c5 pawn and opens the diagonal for the c8 bishop.
At your level this move order is rare. At your level, 3.f3 is played far more than 3.g3, and if you do play 3.g3, only 29 of 100 opponents follow with 3…g6, against 76 of 100 strong players. Once 3…g6 arrives, though, the rest repeats itself: 97 of 100 players at your level follow with 4.g2, and opponents always answer 4…g7. After that pair of moves you score 51 of 100.
The most common picture in games at your level is both sides castling short: your g1 knight comes out, and the king goes to g1 with the g2 bishop in front of it. Sometimes you castle long against their short castle, but that's far less frequent.
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…c6
35,624
45.3%
3.g3
16,125
26.7%
3…g6
4,291
76.0%
4.g2
3,296
93.8%
4…g7
3,085
99.1%
5.d3
3,660
67.6%
5…d6
2,527
50.4%
6.e3
1,729
47.9%
The mistakes that cost the most games
d3Inaccuracy
After 3.f33…e6, 4.d3 lets the e6 pawn back up a push to d5: after 4…f65.e25…d56.exd56…exd57.O-O, your e4 pawn is gone and your opponent has a pawn on d5. Play 4.d4 instead, with the f3 knight ready to recapture. 9 of 100 players choose it; you score 47, against 52.
9 in 100 play it in this position. It gives away 0.6 pawns of advantage. It scores 47.4%; d4 scores 52.0%.
d3Inaccuracy
After 3.f33…g6, 4.d3 gives up d4 and hands it to your opponent: after 4…g75.e35…d4, the knight settles there, backed by the c5 pawn and the g7 bishop. With 4.d4 you take that square before the bishop arrives. 9 of 100 players at your level choose it; you score 45, against 49 with 4.d4.
9 in 100 play it in this position. It gives away 0.8 pawns of advantage. It scores 45.4%; d4 scores 48.7%.
b5Inaccuracy
After 2…e6 there's no knight on c6, so 3.b5 hits nothing useful: just the d7 pawn, defended by the king, queen, bishop and knight. After 3…a64.e24…b55.f35…b7, your bishop has spent two moves, your opponent gains queenside space and the b7 bishop aims at e4. Play 3.ge2 instead. You score 43, against 55.
2 in 100 play it in this position. It gives away 0.7 pawns of advantage. It scores 43.0%; ge2 scores 55.0%.
a4Blunder
After 3.b53…a6, 4.a4 walks the bishop into a trap: 4…b55.b35…c4, and the bishop can only go to a4 or c4, where the b5 pawn takes it. After 6.d46…cxb37.axb3 you've given a bishop for a pawn. Play 4.xc6. At your level this gets punished: you score 28, against 54.
6 in 100 play it in this position. It gives away 5.3 pawns of advantage. It scores 28.4%; xc6 scores 54.4%.
c4Inaccuracy
After 2…f6, the knight attacks e4 and only your c3 knight defends it. 3.e5 kicks it off f6 with tempo. After 3.c4, following 3…a64.d34…c65.d55…e6 the pawn hits your knight, which gets traded with 6.xf6+. 22 of 100 players at your level choose it; you score 50, against 60 with 3.e5.
22 in 100 play it in this position. It gives away 0.7 pawns of advantage. It scores 49.5%; e5 scores 59.7%.
d3Inaccuracy
Inaccuracy, and at your level it goes unpunished. After 3.f33…f6, 4.d3 allows 4…d5: after 5.xd55…xd56.exd56…xd57.e2, your e4 pawn is gone and your opponent's queen sits on d5. 4.b5, pressuring the c6 knight, was more precise, but in practice you score 53 of 100 with either move. 9 of 100 players at your level choose 4.d3.
9 in 100 play it in this position. It gives away 0.6 pawns of advantage. It scores 52.7%; b5 scores 52.9%.
How players castle
Lichess 900–1700 · the 6 most frequent combinations
White
Black
Games
O-O
O-O
86,233
O-O
Not castled
22,567
Not castled
Not castled
13,721
O-O-O
O-O
13,004
Not castled
O-O
10,145
O-O
O-O-O
5,907
Over the board, 2300+ · the 6 most frequent combinations
White
Black
Games
O-O
O-O
201
O-O-O
O-O
35
O-O
Not castled
28
O-O
O-O-O
14
O-O-O
Not castled
11
Not castled
O-O
8
Variations
Traditional
1.e4c52.c3c6 · 61,548 amateur games · 76 over the board
This is the position after 2…c6, the reply of 47 of 100 opponents; there you score 49.