These mobile engines play some really deep chess games.

[AdminX]

Played on my LG6 Phone with Acid Ape Chess

[pgn] [Event "Acid Ape Chess - 40/90+30 G/30+30 "] [Site "?"] [Date "2019.10.28"] [Round "?"] [White "Stockfish 10 64"] [Black "Komodo 13.1 64-bit"] [Result "1/2-1/2"] [ECO "B30"] [WhiteElo "3464"] [BlackElo "3419"] [Annotator "LC0: J13B.2-220"] [PlyCount "94"] [EventDate "2019.??.??"] [TimeControl "40/90+30:0"] [WhiteClock "1:12:09"] [BlackClock "1:08:25"] 1. e4 c5 {0} 2. Nc3 {0} Nc6 {0} 3. Bb5 {0} Nd4 {0} 4. Bc4 {0} e6 {0} 5. Nf3 {0} Ne7 {0} 6. Nxd4 {0} cxd4 {0} 7. Ne2 $1 {0} Nc6 {0 B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 8. d3 {0} (8. O-O a6 9. d3 d5 10. exd5 exd5 11. Bb3 Bd6 12. Nf4 Bxf4 13. Bxf4 O-O 14. Qf3 Be6 15. Rfe1 {1-0 (58) Cornette,M (2611) -Lenic,L (2662) chess.com INT 2018}) 8... g6 {0} 9. h4 {0} b5 $146 {0} ({ Predecessor:} 9... Bg7 10. h5 b5 11. Bb3 Na5 12. Bf4 Nxb3 13. axb3 d6 14. hxg6 fxg6 15. Qd2 {1-0 (32) Zickelbein,E (2024)-Kind,V (1867) Germany 2006}) 10. Bb3 $1 {0} Bb7 {0} 11. Bg5 {0} f6 {0} 12. Bf4 {0} Bc5 {0} 13. Bh6 {0} Rg8 {0} 14. O-O {0} Rc8 {0} 15. Qd2 {-0.32/9 0} (15. c3 $11 {0.09/9 is more appropriate.}) 15... Kf7 {0.13/7 0} (15... a5 $15 {-0.32/9} 16. a4 b4) 16. a3 {0} Qb6 {0} 17. Ng3 {0} a5 {0} 18. a4 {0} Ba6 {0} 19. axb5 {0} Bxb5 {0} 20. Rfb1 {0} Ba6 {0} 21. Nf1 {0} Bb4 {0} 22. Qd1 {0} Qc5 {0} 23. Ng3 {0} Qb6 {0} 24. Ne2 {0} Rgd8 {0 } 25. Ng3 {0} Qc7 {0} 26. Qg4 {0} Rb8 {0} 27. Rd1 {0} Bb5 {0} 28. Rf1 $132 { 0 White is not holding back} Rg8 {0} 29. f4 {0 Hoping for f5.} Bd2 $1 {0} 30. e5 {0} a4 $1 {0} 31. Ba2 {0 Strongly threatening exf6.} Nxe5 $1 {0} 32. fxe5 {0 } Bxh6 {0} 33. Rae1 $1 {0} Qxc2 {0 [#] Double Attack} 34. exf6 {0} Qc6 $1 {0} 35. Ne4 {0} (35. Qxd4 $2 Qb6 $19) 35... Bxd3 {0} 36. Nc5 $1 {0} Bf5 $1 {0} ( 36... Qxc5 37. Rxe6 $1 Bf5 38. Rxf5 $1 $18) (36... Bxf1 $6 37. Nxd7 Be2 38. Ne5+ Kxf6 39. Qxd4 $14 (39. Nxc6 $2 Be3+ 40. Kh1 Bxg4 $19)) 37. Nxd7 {-0.27/19 0} (37. Qxd4 $19 {-1.68/10} Rgd8 38. Qe5 (38. Nxa4 $2 Bf8 $19)) 37... Qxd7 {0} 38. Rxf5 $1 {0} gxf5 {0} 39. Qxf5 {0} Rxg2+ $1 {0 [#] Double Attack} 40. Kh1 $1 {0} (40. Kxg2 $2 {loses.} Qb7+ 41. Kh2 Qxb2+ 42. Kh1 Qb7+ 43. Kh2 Qc7+ 44. Kh3 Qc3+ 45. Kg2 Qxe1 $19) 40... Qc6 {0.27/14 0} (40... Be3 {-0.16/11 was preferrable.} 41. Qxh7+ Ke8 42. Qh8+ Kf7 43. Qh7+ Ke8 44. Qh8+ Kf7 45. Qh7+) 41. Rxe6 $11 {0} Rg1+ $1 {0 Decoy. The position is equal.} 42. Kxg1 {0} Rg8+ {0 } 43. Kf1 {0} Qg2+ {0} 44. Ke1 {0} Qd2+ {0} 45. Kf1 {0 Intending Re7+ and mate. } Qg2+ {0} 46. Ke1 {0 Re7+ would kill now.} Qd2+ {0} 47. Kf1 {0} Qg2+ {0 ½-½. Accuracy: White = 81% (16/13/35), Black = 84% (23/9/38).} 1/2-1/2 [/pgn]

A tactical tit for tat between these two very strong chess engines.

[royb]

Indeed. Long gone are the days when I struggled to find a program that could give me a challenging game. Smartphones have more than enough power and the software to soundly defeat any human in a match. Thank goodness for the ability to set these beasts to lower levels so that I can have a chance once in a while.