Wasp
Wasp,
John Stanback's new UCI compliant chess engine and complete rewrite of Zarkov, first released short after June solstice 2016, announced [2] and hosted by Frank Quisinsky [3]. As a bitboard engine, Wasp is compiled for modern 64 bit CPU's with popcnt and bitscan instructions. Wasp 2.00, released in April 2017, is able to use multiple threads performing a Lazy SMP search [4].
In 2020, John Stanback played with tiny neural networks to learn how to backpropagate errors using Wasp's evaluation as the target, and then rewrote Wasp's evaluation function with fast tuning in mind, quite similar to the tiny NN approach [5]. Along with Wasp 5.00, released in November 2021, the evaluation function emerged to an NNUE with 1830 inputs, 192 neurons in the first hidden layer, 16 neurons in the second hidden layer, and two neurons in the third hidden layer. It was trained using positions from games between Wasp and other engines of roughly similar strength [6].
Contents
Features
Search
- Iterative Deepening
- Aspiration Windows
- Principal Variation Search
- Transposition Table
- Extensions
- Check Extensions
- Passed Pawn Extensions (to 7th rank if depth is low)
- Fractional
- Pruning/Reductions
- Move Ordering
- Lazy SMP (Wasp 2.00)
Evaluation
- NNUE (Wasp 5.00)
- Wasp does not use Lazy Evaluation (Opposed to Zarkov)
- Tapered Eval
- Material
- Piece-Square Tables
- Evaluation Hash Table
- Pawn Hash Table
- Pawn Structure
- Mobility
- Trapped Pieces
- Outposts
- Rook on open/half-open file
- Rook on Seventh
- King Safety
- King Pawn Tropism in Endgame
Misc
See also
Forum Posts
2016 ...
- Wasp 1.01 x64 by John Stanback released ... by Frank Quisinsky, CCC, June 22, 2016
- Wasp 1.02 by John Stanback available ... by Frank Quisinsky, CCC, July 01, 2016
- Wasp until move 42... by Fernando Villegas, CCC, July 05, 2016
- Wasp by John Stanback is clear for take-off on runway 1.25! by Frank Quisinsky, CCC, September 30, 2016
2017
- Wasp 2.00 by John Stanback ... with Lazy SMP! by Frank Quisinsky, CCC, April 21, 2017
- Wasp 2.01 by John Stanback available ... by Frank Quisinsky, CCC, May 04, 2017
- Re: Symmetric multiprocessing (SMP) scaling - SF8 and K10.4 by John Stanback, CCC, May 06, 2017 » Lazy SMP
- Wasp 2.60 by John Stanback released! by Frank Quisinsky, CCC, November 22, 2017
- Wasp and a question by Fernando Villegas, CCC, November 23, 2017
2018
- Wasp 3.00 available ... by Frank Quisinsky, CCC, May 11, 2018
- Re: Lazy SMP and 44 cores by John Stanback, CCC, August 08, 2018 » Lazy SMP
- Wasp 3.50 by John Stanback available! by Frank Quisinsky, CCC, December 14, 2018
2019
- Wasp 3.60 available (for DGT Pi too, for chess computer lovers) by Frank Quisinsky, CCC, April 07, 2019 » DGT Pi
- Wasp 3.75 by John Stanback released ... by Frank Quisinsky, CCC, September 06, 2019
2020 ...
- Wasp 4.00 by John Stanback available! by Frank Quisinsky, CCC, June 14, 2020
- Wasp NN by Ted Summers, CCC, November 14, 2020
- Re: Wasp NN by John Stanback, CCC, November 14, 2020
- Wasp 4.08 dev by Frank Quisinsky, CCC, November 22, 2020
2021
- Wasp 4.5 Released by John Stanback, CCC, January 01, 2021
- Re: Wasp 4.5 Released by John Stanback, CCC, January 03, 2021 » Automated Tuning
- Wasp 5.00 released by John Stanback, CCC, November 18, 2021
2022
- Wasp 5.20 Released by John Stanback, CCC, January 02, 2022
- Wasp 5.50 Released by John Stanback, CCC, April 12, 2022
External Links
Chess Engine
Misc
- WASP - Wiktionary
- wasp - Wiktionary
- Wasp from Wikipedia
- Wasp (disambiguation) from Wikipedia
- W.A.S.P. - Mantronic, Inside the Electric Circus (1986), YouTube Video
References
- ↑ Vespula is a small genus of social wasps, widely distributed in the Northern Hemisphere. Along with members of their sister genus Dolichovespula, they are collectively known by the common name yellow jackets (or yellow-jackets) in North America. Vespula species have a shorter malar space and a more pronounced tendency to nest underground, but are otherwise nearly indistinguishable from Dolichovespula. As shown a Vespula germanica, Image by Richard Bartz, August 10, 2007, CC BY-SA 2.5, Wikimedia Commons, Wasp from Wikipedia
- ↑ Wasp 1.01 x64 by John Stanback released ... by Frank Quisinsky, CCC, June 22, 2016
- ↑ Frank's Chess Page, Wasp by John Stanback, June 22, 2016
- ↑ Wasp 2.00 by John Stanback ... with Lazy SMP! by Frank Quisinsky, CCC, April 21, 2017
- ↑ Re: Wasp NN by John Stanback, CCC, November 14, 2020
- ↑ Wasp 5.00 released by John Stanback, CCC, November 18, 2021
- ↑ based on Wasp Release Notes by John Stanback
