ECO C23
23 named openings and variations are classified as C23. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Bishop's OpeningC231. e4 e5 2. Bc4
- Bishop's Opening: Anderssen GambitC231. e4 e5 2. Bc4 b5 3. Bxb5 c6
- Bishop's Opening: Boi VariationC231. e4 e5 2. Bc4 Bc5
- Bishop's Opening: Calabrese CountergambitC231. e4 e5 2. Bc4 f5
- Bishop's Opening: Calabrese Countergambit, Jaenisch VariationC231. e4 e5 2. Bc4 f5 3. d3
- Bishop's Opening: Four Pawns GambitC231. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 exf4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 fxg3 8. O-O gxh2+ 9. Kh1
- Bishop's Opening: Khan GambitC231. e4 e5 2. Bc4 d5
- Bishop's Opening: Lewis CountergambitC231. e4 e5 2. Bc4 Bc5 3. c3 d5
- Bishop's Opening: Lewis Countergambit, Walker VariationC231. e4 e5 2. Bc4 Bc5 3. c3 d5 4. Bxd5 Nf6 5. d4
- Bishop's Opening: Lewis GambitC231. e4 e5 2. Bc4 Bc5 3. d4
- Bishop's Opening: Lisitsyn VariationC231. e4 e5 2. Bc4 c6 3. d4 d5 4. exd5 cxd5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. dxe5 Nxe5 8. Ne2
- Bishop's Opening: Lopez GambitC231. e4 e5 2. Bc4 Bc5 3. Qe2 Nc6 4. c3 Nf6 5. f4
- Bishop's Opening: Lopez VariationC231. e4 e5 2. Bc4 Bc5 3. Qe2
- Bishop's Opening: Lopez Variation, Lopez GambitC231. e4 e5 2. Bc4 Bc5 3. Qe2 Nf6 4. f4
- Bishop's Opening: McDonnell GambitC231. e4 e5 2. Bc4 Bc5 3. b4
- Bishop's Opening: McDonnell Gambit, La Bourdonnais-Denker GambitC231. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. c3
- Bishop's Opening: McDonnell Gambit, McDonnell Double GambitC231. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4
- Bishop's Opening: Philidor CounterattackC231. e4 e5 2. Bc4 c6
- Bishop's Opening: Philidor VariationC231. e4 e5 2. Bc4 Bc5 3. c3
- Bishop's Opening: Pratt VariationC231. e4 e5 2. Bc4 Bc5 3. c3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qh5 O-O
- Bishop's Opening: Stein GambitC231. e4 e5 2. Bc4 Bc5 3. f4
- Bishop's Opening: Thorold GambitC231. e4 e5 2. Bc4 b5 3. Bxb5 f5
- Bishop's Opening: del Rio VariationC231. e4 e5 2. Bc4 Bc5 3. c3 Qg5