Tactical Evaluation of ECO Chess Openings

Explore and compare chess opening variations classified by ECO code and by the evaluation of their final position.

Positions from −0.50 to +0.50 pawns are considered equal. Beyond this range, White or Black has the advantage.

3632 variations
B02

Alekhine Defense

Favorable for White
+0.54
Variation :
1. e4 Nf6
Best continuation :
e5 Nd5 c4 Nb6 d4 d6 f4 dxe5 fxe5 Nc6 Be3 Bf5
To move :
White
B03

Alekhine Defense

Favorable for White
+0.77
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4
Best continuation :
d6 c4 Nb6 f4 dxe5 fxe5 Nc6 Be3 Bf5 Nc3 e6 Nf3
To move :
Black
B03

Alekhine Defense

Favorable for White
+0.75
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6
Best continuation :
c4 Nb6 f4 dxe5 fxe5 Nc6 Be3 Bf5 Nc3 e6 Nf3 Be7
To move :
White
B03

Alekhine Defense

Favorable for White
+0.74
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4
Best continuation :
Nb6 f4 dxe5 fxe5 Nc6 Be3 Bf5 Nc3 e6 Nf3 Be7 Be2
To move :
Black
B03

Alekhine Defense: Balogh Variation

Equal
+0.08
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4
Best continuation :
Nb6 Bb3 dxe5 Qh5 e6 dxe5 a5 a4 Na6 Nf3 Nc5 Ra3
To move :
Black
B02

Alekhine Defense: Brooklyn Variation

Favorable for White
+0.93
Variation :
1. e4 Nf6 2. e5 Ng8
Best continuation :
d4 d6 Nf3 dxe5 Nxe5 Nd7 Qf3 Nxe5 dxe5 c6 Qc3 Be6
To move :
White
B02

Alekhine Defense: Brooklyn Variation, Everglades Variation

Favorable for White
+2.17
Variation :
1. e4 Nf6 2. e5 Ng8 3. d4 f5
Best continuation :
Bg5 d6 Nf3 h6 Be3 e6 Nc3 Ne7 d5 Nxd5 Nxd5 exd5
To move :
White
B02

Alekhine Defense: Buckley Attack

Equal
-0.06
Variation :
1. e4 Nf6 2. e5 Nd5 3. Na3
Best continuation :
d6 exd6 cxd6 d4 g6 g3 Bg7 Bg2 O-O Ne2 Nf6 O-O
To move :
Black
B03

Alekhine Defense: Exchange Variation

Equal
+0.39
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6
Best continuation :
exd6 h3 Be7 Nf3 Bf5 Bd3 Bxd3 Qxd3 O-O O-O Re8 Nc3
To move :
Black
B03

Alekhine Defense: Exchange Variation, Karpov Variation

Equal
+0.18
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. h3 Bg7 8. Nf3 O-O 9. Be2 Nc6 10. O-O Bf5 11. Bf4
Best continuation :
e5 Bg5 Qd7 dxe5 dxe5 c5 Qxd1 Rfxd1 Nd7 Be3 Nd4 Nxd4
To move :
Black
B03

Alekhine Defense: Exchange Variation, Voronezh Variation

Equal
+0.38
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. Rc1 O-O 9. b3
Best continuation :
e5 Nf3 Nc6 d5 Ne7 Bd3 Nd7 O-O b6 Bc2 f5 Ng5
To move :
Black
B03

Alekhine Defense: Four Pawns Attack

Favorable for White
+0.68
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4
Best continuation :
dxe5 fxe5 Nc6 Be3 Bf5 Nc3 e6 Nf3 Be7 Be2 O-O O-O
To move :
Black
B03

Alekhine Defense: Four Pawns Attack, Cambridge Gambit

Favorable for White
+1.51
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5
Best continuation :
Nc3 Bg7 Qh5 dxe5 dxe5 O-O Nf3 g4 Nh4 Qd4 h3 g3
To move :
White
B03

Alekhine Defense: Four Pawns Attack, Fianchetto Variation

Favorable for White
+0.85
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6
Best continuation :
Nc3 Bg7 Be3 dxe5 dxe5 Qxd1+ Rxd1 Bg4 Rd2 Nc6 Nb5 Rc8
To move :
White
B03

Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation

Equal
-0.44
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Nf3 Bg4 8. e6 fxe6 9. c5
Best continuation :
Nd5 Bb5 Qd7 Nbd2 g6 h3 Bxf3 Nxf3 Bg7 O-O a6 Ba4
To move :
Black
B03

Alekhine Defense: Four Pawns Attack, Korchnoi Variation

Favorable for White
+0.64
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Be7 9. Be2 O-O 10. O-O f6
Best continuation :
exf6 Bxf6 Be3 Nc6 Qd2 h6 Rad1 Qe8 Kh1 Rd8 Qc1 Qg6
To move :
White
B03

Alekhine Defense: Four Pawns Attack, Main Line

Favorable for White
+0.64
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3
Best continuation :
Bf5 Nc3 e6 Nf3 Be7 Be2 O-O O-O f6 exf6 Bxf6 Qd2
To move :
Black
B03

Alekhine Defense: Four Pawns Attack, Tartakower Variation

Favorable for White
+2.72
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Qd7 10. Be2 O-O-O 11. O-O Be7
Best continuation :
d5 exd5 Bxb6 axb6 cxd5 Bc5+ Kh1 Ne7 Nd4 Kb8 d6 Bxd4
To move :
White
B03

Alekhine Defense: Four Pawns Attack, Trifunovic Variation

Favorable for White
+0.58
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5
Best continuation :
Nf3 dxe5 fxe5 Nc6 Be2 e6 Nc3 Be7 O-O O-O Be3 f6
To move :
White
B03

Alekhine Defense: Hunt Variation

Favorable for Black
-1.24
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. c5
Best continuation :
dxc5 Nf3 cxd4 Nxd4 a6 Bd3 c5 Nf3 Nc6 Nc3 Bg4 Be4
To move :
Black
B02

Alekhine Defense: Hunt Variation, Lasker Simul Gambit

Equal
-0.22
Variation :
1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3
Best continuation :
Bxc5 Bxd5 exd5 Nxd5 Nc6 Ne2 Be7 O-O d6 Nxe7 Nxe7 d4
To move :
Black
B02

Alekhine Defense: Hunt Variation, Matsukevich Gambit

Equal
+0.30
Variation :
1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Bg5
Best continuation :
h6 Bf4 Be6 Nf3 dxc5 Qc2 Nd7 Bd3 c4 Be2 Bd5 e6
To move :
Black
B02

Alekhine Defense: Hunt Variation, Mikenas Gambit

Equal
+0.34
Variation :
1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5
Best continuation :
Be7 cxd6 cxd6 Qb3 O-O e6 fxe6 Bxe6+ Bxe6 Qxe6+ Kh8 Nf3
To move :
Black
B02

Alekhine Defense: Kmoch Variation

Equal
+0.09
Variation :
1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3
Best continuation :
Nc6 Nf3 d5 exd6 exd6 O-O Be7 a4 Na5 Ba2 O-O Nc3
To move :
Black
B02

Alekhine Defense: Krejcik Variation

Favorable for Black
-0.97
Variation :
1. e4 Nf6 2. Bc4
Best continuation :
Nxe4 Bxf7+ Kxf7 Qh5+ Kg8 Qd5+ e6 Qxe4 d5 Qe3 e5 d4
To move :
Black
B02

Alekhine Defense: Krejcik Variation, Krejcik Gambit

Favorable for Black
-1.05
Variation :
1. e4 Nf6 2. Bc4 Nxe4 3. Bxf7+
Best continuation :
Kxf7 Qh5+ Kg8 Qd5+ e6 Qxe4 d5 Qe3 e5 d4 exd4 Qxd4
To move :
Black
B02

Alekhine Defense: Maróczy Variation

Equal
-0.01
Variation :
1. e4 Nf6 2. d3
Best continuation :
e5 f4 exf4 Bxf4 Nc6 Be2 Bc5 Nc3 d5 e5 Nd7 Nf3
To move :
Black
B04

Alekhine Defense: Modern Variation

Equal
+0.42
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3
Best continuation :
dxe5 Nxe5 c6 Be2 Bf5 O-O Nd7 Nf3 e6 c4 N5f6 Nh4
To move :
Black
B04

Alekhine Defense: Modern Variation, Alburt Variation

Favorable for White
+0.77
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6
Best continuation :
c4 Nb6 exd6 cxd6 h3 Bg7 Be2 O-O Nc3 Nc6 O-O Bf5
To move :
White
B03

Alekhine Defense: Modern Variation, Alekhine Gambit

Equal
-0.13
Variation :
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 Bg4 6. Be2
Best continuation :
dxe5 c5 e4 Ne5 Bxe2 Kxe2 N6d7 Qb3 Nxe5 Qxb7 Nbc6 dxe5
To move :
Black
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