A chess engine adapter that can combine 2 engines and play as one. First engine may play in the middle and the other engine may continue to play for the rest of the game.
License: GNU General Public License v3.0
a few times i used HeadsUp to play engine-vs-engine in CuteChess (on Linux) .. HeadsUp seems to work fine, but once stopped with a "White's connection stalls" message .. see game PGN and log below. Could some extra / other settings be needed ? I use a simple cfg.
NOTE: the CuteChess comment of the last move shows the other engine took 108 sec to return its best move Re7 and this is the longest thinking time in this game : was HeadsUp still idle to receive UCI commands ? btw. in the Python code i see a simple infinite "while True" construction .. is this a common / robust way ?
[Event "?"]
[Site "?"]
[Date "2021.08.01"]
[Round "?"]
[White "HeadsUp"]
[Black "SF asmFish"]
[Result "0-1"]
[FEN "2rqr1k1/pp1bbp1p/4p1pB/4P3/1Q1pN3/P4N2/5PP1/3RR1K1 b - - 0 2"]
[GameDuration "00:13:50"]
[PlyCount "39"]
[SetUp "1"]
[Termination "stalled connection"]
[TimeControl "720+5"]
1... Bxb4 {+2.38/30 23s} 2. axb4 {+0.01/39 86s} f5 {+0.13/35 0s}
3. Nf6+ {-0.02/41 35s} Kh8 {0.00/37 4.6s} 4. Rxd4 {+0.01/40 21s}
Re7 {0.00/37 0s} 5. Red1 {+0.01/44 61s} Rc7 {-0.15/39 0s} 6. b5 {0.00/41 23s}
b6 {0.00/33 9.9s} 7. Ng5 {+0.01/39 22s} Qc8 {-0.97/33 26s} 8. Kh2
Rb7 {-1.11/34 52s} 9. Kg1 {1.0s} Rc7 {-1.10/34 21s} 10. Rd6 {/40 1.1s}
Rb7 {-1.30/35 41s} 11. R6d2 {/44 5.1s} Rc7 {-1.62/30 20s}
12. Rd4 {+3.11/30 7.3s} Rb7 {-1.09/30 7.8s} 13. Kh2 {+3.51/31 5.4s}
Rc7 {-1.65/36 61s} 14. f4 {+4.01/40 0.77s} Qd8 {-2.78/39 63s}
15. Nxe6 {+4.99/42 2.9s} Rxe6 {-3.45/40 16s} 16. Rxd7 {+5.07/39 5.5s}
Rxd7 {-3.80/40 22s} 17. Rxd7 {+5.15/40 0.80s} Qxd7 {-3.12/40 14s}
18. Nxd7 {+5.23/38 9.4s} Kg8 {-4.07/39 10s} 19. Nf6+ {+5.30/35 4.5s}
Kf7 {-4.10/41 14s} 20. Nxh7 {+5.31/37 9.7s}
Re7 {-4.56/44 108s, White's connection stalls} 0-1
i see the cfg file : it has 2 factors which determine the switch .. could another criteria exist which determines the engine-to-use in a certain "position type" ? :: closed centre, with(out) queens, nr of open lines, nr of pieces attacked, etc. or combination of such factor values to create some new hybrid engine concept ?
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