DroidFish Chess
Open in Telegram
Is a feature rich graphical chess interface combined with the powerful Stokfish chess engine.
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Channel Posts
| 2 |  No text... | 625 |
| 3 | nnueweights.bin | 666 |
| 4 | SupeUltra Network | 633 |
| 5 | SuperUltra_2.1 | 610 |
| 6 | superultra-android.apk | 623 |
| 7 | # Superultra (NNUE)
## Overview
Superultra is a UCI compliant chess engine that uses an alpha-beta search framework, various heuristics and optimization techniques, and an efficiently updatable neural network (NNUE) in order to analyze chess positions and calculate moves.
## Usage
Superultra supports the UCI Protocol but does not come with a GUI (like most UCI chess engines). It is recomended to download a UCI Compatable GUI such as cutechess.
## Features
### Board Representation
* Bitboards
* Magic Bitboards for efficient slider attack generation
### Search
* Iterative Deepening
* Aspiration Windows
* Parallel Search with Lazy SMP
* Principle Variation Search
* Transposition Table with 4 buckets and aging (shared across threads)
* Move Ordering
* Countermove Heuristic
* Killer Heuristic
* Continuation History Heuristic and History Heuristic (with gravity)
* MVV/LVA
* SEE
* Transposition Table Move
* Pruning, Reductions, and Extensions
* Null Move Pruning
* Razoring
* Reverse Futility Pruning
* Probcut
* Quiet Move Pruning
* Move Count Pruning
* Futility Pruning
* History Pruning
* SEE Pruning
* Singular Extensions + Multicut Pruning
* Late Move Reductions
* Quiescence Search
* Time Management
* Best move stability
* Score stability
* Complexity based on the percentage of time spent searching moves that are not the best move
### Evaluation
* Efficiently Updatable Neural Network
* (768x10-->512)x2-->1 architecture
* Perspective
* Crelu Activation Function
* 10 King Buckets (mirrored)
* 8 Output Weight Buckets | 578 |
| 8 |  Top-15 June 2025 | 532 |
| 9 | GreKo_PSQ_2.0_MP.zip | 576 |
| 10 | Stockfish_250602.zip | 711 |
| 11 | Stockfish dev-20250525-73c55e89
https://github.com/official-stockfish/Stockfish/releases/tag/stockfish-dev-20250525-73c55e89 | 744 |
| 12 | https://t.me/chesschannelforall
Chess discussion group. Open for all! | 768 |
| 13 | +2 Caissa_1.22.zip | 725 |
| 14 | +3 Stockfish_250427.zip | 689 |
| 15 | Stockfish dev-20250427-94e6c049
https://github.com/official-stockfish/Stockfish/releases/tag/stockfish-dev-20250427-94e6c049 | 606 |
| 16 | Stash_37.0.zip | 647 |
| 17 | https://drive.proton.me/urls/ASWXN5ZW30#ZvNGERiC79aC | 619 |
| 18 | https://drive.proton.me/urls/VGW1M7KCHM#lDtqfOgqHD6v | 536 |
| 19 | https://drive.proton.me/urls/ATZCB3EQB8#unAavTocmjrQ | 410 |
| 20 | https://drive.proton.me/urls/5BNRCAVN5W#duhAUwePZYbw | 372 |
