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Stormphrax 6.0.0
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@Ciekce
Ciekce committed Oct 29, 2024
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54 changes: 31 additions & 23 deletions README.md
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Expand Up @@ -18,12 +18,13 @@ this project is a continuation of my HCE engine [Polaris]
## Strength
| Version | [CCRL 40/15][ccrl-4015] | [CCRL Blitz][ccrl-blitz] | [CCRL 40/2 FRC][ccrl-402-frc] | [CEGT 40/4][cegt-404] | [CEGT 40/20][cegt-4020] | [MCERL] |
|:-------:|:-----------------------:|:------------------------:|:-----------------------------:|:---------------------:|:-----------------------:|:-------:|
| 5.0.0 | 3506 | 3623 | 3866 | 3501 | 3461 | - |
| 4.1.0 | 3490 | 3587 | 3808 | - | 3432 | - |
| 4.0.0 | 3477 | 3567 | 3778 | 3440 | 3419 | 3542 |
| 3.0.0 | 3409 | 3492 | 3693 | - | 3354 | 3495 |
| 2.0.0 | 3399 | 3483 | 3673 | 3339 | - | 3482 |
| 1.0.0 | 3319 | 3376 | 3521 | 3235 | - | 3346 |
| 6.0.0 | - | - | - | - | - | - |
| 5.0.0 | 3507 | 3624 | 3865 | 3501 | 3461 | - |
| 4.1.0 | 3490 | 3588 | 3808 | - | 3432 | - |
| 4.0.0 | 3476 | 3568 | 3778 | 3440 | 3419 | 3542 |
| 3.0.0 | 3408 | 3494 | 3693 | - | 3354 | 3495 |
| 2.0.0 | 3398 | 3485 | 3673 | 3339 | - | 3482 |
| 1.0.0 | 3318 | 3377 | 3520 | 3235 | - | 3346 |

## Features
- standard PVS with quiescence search and iterative deepening
Expand All @@ -34,9 +35,14 @@ this project is a continuation of my HCE engine [Polaris]
- 1-ply continuation history (countermove history)
- 2-ply continuation history (follow-up history)
- 4-ply continuation history
- correction history
- pawn
- non-pawn
- major
- continuation
- history pruning
- internal iterative reduction
- killers (2 per ply)
- killers (1 per ply)
- late move reductions
- late move pruning
- mate distance pruning
Expand All @@ -51,9 +57,9 @@ this project is a continuation of my HCE engine [Polaris]
- various negative extensions
- Syzygy tablebase support
- NNUE
- (768x4->1536)x2->1x8 architecture, horizontally mirrored
- (768x16->1280)x2->1x8 architecture, horizontally mirrored
- trained from zero knowledge with reinforcement learning from a randomly-initialised network
- BMI2 attacks in the `bmi2` build, otherwise fancy black magic
- BMI2 attacks in the `bmi2` build and up, otherwise fancy black magic
- `pext`/`pdep` for rooks
- `pext` for bishops
- lazy SMP
Expand All @@ -63,20 +69,22 @@ this project is a continuation of my HCE engine [Polaris]
- make it stronger uwu

## UCI options
| Name | Type | Default value | Valid values | Description |
|:-------------------|:-------:|:-------------:|:-------------------------:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `Hash` | integer | 64 | [1, 131072] | Memory allocated to the transposition table (in MB). |
| `Clear Hash` | button | N/A | N/A | Clears the transposition table. |
| `Threads` | integer | 1 | [1, 2048] | Number of threads used to search. |
| `UCI_Chess960` | check | `false` | `false`, `true` | Whether Stormphrax plays Chess960 instead of standard chess. |
| `UCI_ShowWDL` | check | `true` | `false`, `true` | Whether Stormphrax displays predicted win/draw/loss probabilities in UCI output. |
| `ShowCurrMove` | check | `false` | `false`, `true` | Whether Stormphrax starts printing the move currently being searched after a short delay. |
| `Move Overhead` | integer | 10 | [0, 50000] | Amount of time Stormphrax assumes to be lost to overhead when making a move (in ms). |
| `EnableWeirdTCs` | check | `false` | `false`, `true` | Whether unusual time controls (movestogo != 0, or increment = 0) are enabled. Enabling this option means you recognise that Stormphrax is neither designed for nor tested with these TCs, and is likely to perform worse than under X+Y. |
| `SyzygyPath` | string | `<empty>` | any path, or `<empty>` | Location of Syzygy tablebases to probe during search. |
| `SyzygyProbeDepth` | spin | 1 | [1, 255] | Minimum depth to probe Syzygy tablebases at. |
| `SyzygyProbeLimit` | spin | 7 | [0, 7] | Maximum number of pieces on the board to probe Syzygy tablebases with. |
| `EvalFile` | string | `<internal>` | any path, or `<internal>` | NNUE file to use for evaluation. |
| Name | Type | Default value | Valid values | Description |
|:------------------------------|:-------:|:-------------:|:-------------------------:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `Hash` | integer | 64 | [1, 131072] | Memory allocated to the transposition table (in MB). |
| `Clear Hash` | button | N/A | N/A | Clears the transposition table. |
| `Threads` | integer | 1 | [1, 2048] | Number of threads used to search. |
| `UCI_Chess960` | check | `false` | `false`, `true` | Whether Stormphrax plays Chess960 instead of standard chess. |
| `UCI_ShowWDL` | check | `true` | `false`, `true` | Whether Stormphrax displays predicted win/draw/loss probabilities in UCI output. |
| `ShowCurrMove` | check | `false` | `false`, `true` | Whether Stormphrax starts printing the move currently being searched after a short delay. |
| `Move Overhead` | integer | 10 | [0, 50000] | Amount of time Stormphrax assumes to be lost to overhead when making a move (in ms). |
| `SoftNodes` | check | `false` | `false`, `true` | Whether Stormphrax will finish the current depth after hitting the node limit when sent `go nodes`. |
| `SoftNodeHardLimitMultiplier` | integer | 1678 | [1, 5000] | With `SoftNodes` enabled, the multiplier applied to the `go nodes` limit after which Stormphrax will abort the search anyway. |
| `EnableWeirdTCs` | check | `false` | `false`, `true` | Whether unusual time controls (movestogo != 0, or increment = 0) are enabled. Enabling this option means you recognise that Stormphrax is neither designed for nor tested with these TCs, and is likely to perform worse than under X+Y. |
| `SyzygyPath` | string | `<empty>` | any path, or `<empty>` | Location of Syzygy tablebases to probe during search. |
| `SyzygyProbeDepth` | spin | 1 | [1, 255] | Minimum depth to probe Syzygy tablebases at. |
| `SyzygyProbeLimit` | spin | 7 | [0, 7] | Maximum number of pieces on the board to probe Syzygy tablebases with. |
| `EvalFile` | string | `<internal>` | any path, or `<internal>` | NNUE file to use for evaluation. |

## Builds
`vnni512`: requires BMI2, AVX-512 and VNNI (Zen 4/Cascade Lake-SP/Rocket Lake and up)
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2 changes: 1 addition & 1 deletion network.txt
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net038
nightwoods
2 changes: 1 addition & 1 deletion version.txt
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5.0.40
6.0.0

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