| ECO | Opening Name | Variant | ||
|---|---|---|---|---|
| E23 | Nimzo-Indian | Spielmann, 4...c5, 5.dc Nc6 |  Browse | View Opening |
| E23 | Nimzo-Indian | Spielmann, Karlsbad variation | Browse | View Opening |
| E23 | Nimzo-Indian | Spielmann, San Remo variation | Browse | View Opening |
| E23 | Nimzo-Indian | Spielmann, Staahlberg variation | Browse | View Opening |
