| System | Version | Divisions | Entrants | Affiliation | Entry date | System Description | Sample Solutions | 
|---|---|---|---|---|---|---|---|
| Darwin | CASC-J2 | MIX SAT* EPR (demo) | Alexander Fuchs (Peter Baumgartner, Cesare Tinelli) | Universität Koblenz-Landau, Germany | 31/5/04 | Description | Samples | 
| DCTP | 1.3-EPR | EPR | CASC | CASC-19 EPR winner | 09/04/04 | Description |  | 
| DCTP | 1.31 | MIX SAT EPR | Gernot Stenz (Reinhold Letz) | Technische Universität München | 04/06/04 | Description |  | 
| DCTP | 10.21p | MIX FOF SAT EPR | Gernot Stenz (Reinhold Letz) | Technische Universität München | 04/06/04 | Description |  | 
| Dilemma | 0.1 | FOF* | Magnus Björk | Chalmers University of Technology | 27/5/04 | Description |  | 
| E | 0.82 | MIX FOF UEQ | Stephan Schulz | Technische Universität München and IRC/irst | 09/04/04 | Description |  | 
| EP | 0.82 | MIX* FOF* | Stephan Schulz | Technische Universität München and IRC/irst | 09/04/04 | Description | Samples | 
| E-SETHEO | csp04 | MIX FOF SAT EPR UEQ | Gernot Stenz (Stephan Schulz, Reinhold Letz) | Technische Universität München | 04/06/04 | Description |  | 
| Gandalf | c-2.6-SAT | SAT | CASC | CASC-19 SAT winner | 09/04/04 | Description |  | 
| Mace2 | 2.2 | SAT* | William McCune | Argonne National Laboratory | 28/5/04 | Description | Samples | 
| Mace4 | 2004-D | SAT* | William McCune | Argonne National Laboratory | 28/5/04 | Description | Samples | 
| Octopus | 2004 | MIX* (demo) | Monty Newborn (Zongyan Wang) | McGill University | 27/5/04 | Description | Samples | 
| Otter | 3.3 | MIX* FOF UEQ | CASC (William McCune) | CASC (Argonne National Laboratory) | 09/04/04 | Description | Samples | 
| Paradox | 1.0 | SAT* | CASC | CASC-19 SAT winner | 09/04/04 | Description | Samples | 
| Paradox | 1.1-casc | SAT* EPR | Koen Claessen (Niklas Sörensson) | Chalmers University of Technology | 11/05/04 | Description | Samples | 
| SOS | 1.0 | MIX* UEQ | John Slaney Arnold Binas, David Price | Australian National University | 28/5/04 | Description | Samples | 
| THEO | J2004 | MIX* | Monty Newborn | McGill University | 27/5/04 | Description | Samples | 
| Vampire | 5.0 | FOF | CASC | CASC-19 FOF winner | 09/04/04 | Description |  | 
| Vampire | 6.0 | MIX* | CASC | CASC-19 MIX winner | 09/04/04 | Description | Samples | 
| Vampire | 7.0 | MIX* FOF* EPR UEQ | Andrei Voronkov (Alexandre Riazanov) | The University of Manchester | 27/54/04 | Description | Samples | 
| Waldmeister | 702 | UEQ | CASC | CASC-19 UEQ winner | 09/04/04 | Description |  | 
| Waldmeister | 704 | UEQ | Thomas Hillenbrand (Bernd Löchner, Jean-Marie Gaillourdet) | Max-Planck-Institut für Informatik (Technische Universität Kaiserslautern) | 31/5/04 | Description |  | 
| MIX | FOF | SAT | EPR | UEQ | 
|---|---|---|---|---|
| Darwin CASC-J2 DCTP 1.31 DCTP 10.21p E 0.82 EP 0.82* E-SETHEO csp04 Otter 3.3* SOS 1.0* THEO J2004* Vampire 6.0* Vampire 7.0* | DCTP 10.21p Dilemma 0.1 E 0.82 EP 0.82* E-SETHEO csp04 Otter 3.3 Vampire 5.0 Vampire 7.0* | Darwin CASC-J2* DCTP 1.31 DCTP 10.21p E-SETHEO csp04 Gandalf c-2.6-SAT* Mace2 2.2* Mace4 2004-D* Paradox 1.0* Paradox 1.1-casc* | Darwin CASC-J2 DCTP 1.3 DCTP 1.31 DCTP 10.21p E-SETHEO csp04 Paradox 1.1-casc Vampire 7.0 | E 0.82 E-SETHEO csp04 Otter 3.3 SOS 1.0 Vampire 7.0 Waldmeister 702 Waldmeister 704 | 
| MIX | FOF | SAT | EPR | UEQ | 
|---|---|---|---|---|
| Octopus 2004* |  |  |  |  | 
| Entrant | System | Phone | T-Shirt | |
|---|---|---|---|---|
| Magnus Björk | Dilemma 0.1 | mab@cs.chalmers.se | +46 706 598093 | Large | 
| Koen Claessen | Paradox 1.1-casc | koen@cs.chalmers.se | +46 31 7725424 | Large | 
| Alexander Fuchs | Darwin CASC-J2 | alexander.fuchs@uni-koblenz.de | XLarge | |
| Thomas Hillenbrand | Waldmeister 704 | hillen@mpi-sb.mpg.de | +49 681 9325217 | Large | 
| William McCune | Mace2 2.2 Mace4 20004-D | mccune@mcs.anl.gov | +1 630 2523065 | Large | 
| Monty Newborn | Octopus 2004 THEO J2004 | newborn@cs.mcgill.ca | +1 514 4877544 | Large | 
| Stephan Schulz | E 0.82 EP 0.82 | schulz@informatik.tu-muenchen.de | +39 0461 314331 | XLarge | 
| John Slaney | SOS 1.0 | John.Slaney@anu.edu.au | +61 2 61258607 | XLarge | 
| Gernot Stenz | DCTP 1.31 DCTP 10.21p E-SETHEO csp04 | stenzg@in.tum.de | +49 89 28917878 | Large | 
| Andrei Voronkov | Vampire 7.0 | voronkov@cs.man.ac.uk | +44 161 2756116 | XLarge |