node-uci
Version:
Universal Chess Interface protocol implementation for node.js
92 lines (84 loc) • 4.38 kB
JavaScript
import _ from 'lodash'
import Promise from 'bluebird'
// import {Chess} from 'chess.js'
import { Engine, Evaluator } from '../'
const enginePath =
'C:\\Users\\derp\\Downloads\\stockfish-7-win\\Windows\\stockfish.exe'
const moves = ['e2e4', 'e7e5', 'b1c3', 'b8c6', 'd2d3', 'd7d6']
const game1 = `[Event "Casual game"]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 { B46 Sicilian Defense: Paulsen Variation } 6. Bc4 Qf6?! { (0.17 → 0.85) Inaccuracy. Best move was Qc7. } (6... Qc7 7. O-O Nf6 8. Be2 Bd6 9. Nf3 O-O 10. h3 Ne5 11. Nd4 Nc6 12. Nf3 Ne5 13. Bg5) 7. Be3 Be7 8. O-O Bd6?? { (1.13 → 4.48) Blunder. Best move was b5. } (8... b5 9. Be2 Bb7 10. a3 Nxd4 11. Bxd4 e5 12. Be3 Qc6 13. Nd5 Nf6 14. Nxe7 Kxe7 15. f3) 9. f4? { (4.48 → 1.85) Mistake. Best move was Nxc6. } (9. Nxc6 Bc7 10. Nd4 b5 11. Bd3 Bb7 12. f4 Qh6 13. Qe2 Ne7 14. a4 b4 15. Na2 O-O) 9... h5?? { (1.85 → 5.22) Blunder. Best move was Bc5. } (9... Bc5 10. e5 Nxe5 11. fxe5 Qxe5 12. Qd2 Nf6 13. Be2 d5 14. Rad1 Qc7 15. Nb3 Bd6 16. Bf4) 10. e5? { (5.22 → 3.56) Mistake. Best move was Nxc6. } (10. Nxc6 Bc7 11. e5 Qg6 12. Nd4 Ne7 13. Bd3 f5 14. exf6 Qxf6 15. Ne4 Qh6 16. Qf3 Nd5) 10... Nxe5? { (3.56 → 5.20) Mistake. Best move was Bxe5. } (10... Bxe5 11. fxe5 Qxe5 12. Bf2 Nf6 13. Nxc6 bxc6 14. Bd4 Qc7 15. Bxf6 gxf6 16. Ne4 d5 17. Nxf6+) 11. fxe5 Qxe5 12. Bf4 Qc5?? { (4.53 → 9.43) Blunder. Best move was Qxf4. } (12... Qxf4 13. Rxf4) 13. Bxd6?? { (9.43 → 5.71) Blunder. Best move was Ne4. } (13. Ne4 Nf6 14. Nxc5 Bxc5 15. c3 d5 16. Bd3 Ne4 17. Qf3 Bd7 18. Be3 f6 19. Rae1 O-O-O) 13... Qxd6 14. Ne4? { (5.70 → 2.86) Mistake. Best move was Nxe6. } (14. Nxe6 Qb6+ 15. Qd4 Qxd4+ 16. Nxd4 Nf6 17. Rae1+ Kd8 18. Nf5 b5 19. Bxf7 Rb8 20. Nxg7 Rb6) 14... Qb4? { (2.86 → 4.64) Mistake. Best move was Qb6. } (14... Qb6 15. Qd3 Ne7 16. Bb3 f6 17. Qe3 O-O 18. Rae1 a5 19. c3 a4 20. Bc2 Qxb2 21. Qg3) 15. c3 Qxb2?? { (3.95 → 17.97) Blunder. Best move was Qb6. } (15... Qb6) 16. Nd6+ Ke7?! { (16.11 → Mate in 7) Checkmate is now unavoidable. Best move was Kd8. } (16... Kd8 17. Nxf7+ Ke7 18. Nxh8 Qb6 19. Qxh5 Nf6 20. Qg5 Kf8 21. Qg6 Ke7 22. Qg5 Kf8 23. Qg6) 17. Rxf7+ Kxd6 18. Nb5+ Kc5 19. Qd6+?! { (Mate in 2 → Mate in 4) Not the best checkmate sequence. Best move was Qd4+. } (19. Qd4+ Kc6 20. Qd6
/* eslint-disable */
xdescribe('playground', () => {
it('test', async () => {
// it.only('test', async () => {
const engine = new Engine(enginePath)
const res = await engine
.chain()
.init()
.go({ depth: 3 })
console.log(res)
})
it('evaluator', async () => {
const engine = new Engine(enginePath)
const game = new Chess()
game.load_pgn(game1)
let gmoves = game.history({ verbose: true }).map(move => {
let str = `${move.from}${move.to}`
if (move.promotion) str += move.promotion
return str
})
const wat = await Evaluator.evaluate(engine, gmoves, {
reverse: false,
depth: 12,
})
// console.log(wat);
wat.map(hm => {
console.log('---')
console.log(hm)
})
})
it('chain analysis', async () => {
const engine = new Engine(enginePath)
const chain = engine.chain()
await chain
.init()
.ucinewgame()
.exec()
const evals = await Promise.mapSeries(moves, (move, i) => {
const sliceIndex = reverse ? moves.length - i : i + 1
return chain
.position('startpos', moves.slice(0, sliceIndex))
.go({ depth })
}).map((e, i) => {
const lastInfo = _.last(e.info)
return {
pv: lastInfo.pv,
score: lastInfo.score,
bestmove: e.bestmove,
}
})
// console.log(wat);
// console.log(wat[0]);
// console.log(evals);
const final = _.zipWith(moves, evals, (m, e) => ({
...e,
move: m,
}))
console.log(final)
engine.quit()
})
})