Public replay · 0-1 · ECO B02

Alekhine Defense: Black mates in 47 moves

Alekhine Defense (B02): Player vs Chessdox Computer, beginner level. Black mates with the rook after 47 moves with 25 captures and 9 checks.

Position after 47... Rh1#

Position after 47... Rh1#B02 Alekhine Defense

Game summary

Alekhine Defense — how the game went

Player (White) and Chessdox Computer (Black) played this beginner-level game. It opened with the Alekhine Defense, classified as ECO B02, after 1. e4 Nf6.

White castled kingside, while Black's king never castled. Over 47 moves the game saw 25 captures, 9 checks.

Black delivered checkmate with the rook on 47... Rh1#. At the end White had 1 point of material and Black 14 points, counting pawns as 1, knights and bishops as 3, rooks as 5 and queens as 9.

Final position after 47 moves, black won (0-1). FEN: 8/8/5k2/p7/6PK/4r3/5n2/7r w - - 1 48
Final position · 0-1

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[Event "Chessdox public replay"]
[Site "https://chessdox.com/games/beginner-replay-from-1-e4-black-wins-in-47-moves-7eb5be8726315f7a50ec"]
[Date "2026.09.10"]
[Round "-"]
[White "Player"]
[Black "Chessdox Computer"]
[Result "0-1"]
[TimeControl "600+0"]
[ECO "B02"]
[Opening "Alekhine Defense"]
[Termination "normal"]
[PlyCount "94"]

1. e4 Nf6 2. Nc3 Nc6 3. Nf3 a6 4. Bc4 d6 5. d3 b5 6. Bb3 h5 7. Bf4 g6 8. O-O e5
9. Bg3 Be6 10. d4 b4 11. Ne2 a5 12. dxe5 dxe5 13. Nxe5 Nxe5 14. Qxd8+ Kxd8 15.
Bxe5 Ke7 16. Bxe6 fxe6 17. Bxc7 h4 18. Nf4 Rh6 19. Rad1 h3 20. Nxh3 Nxe4 21.
Rfe1 Nf6 22. b3 Rh7 23. a4 bxa3 24. c4 Rh8 25. Bd6+ Ke8 26. Bxa3 Bxa3 27. Nf4
Rb8 28. Nxe6 Bb4 29. Nc7+ Kf8 30. Ne6+ Ke8 31. Ng7+ Kf7 32. Ne6 Bxe1 33. Rxe1
Rxb3 34. Nd4 Rb2 35. Ne2 Rc8 36. Rc1 Rxe2 37. c5 Ng4 38. h3 Ne5 39. Ra1 Rxc5 40.
Ra3 g5 41. Rg3 Kf6 42. h4 Rc1+ 43. Kh2 gxh4 44. Re3 Ng4+ 45. Kh3 Nxf2+ 46. Kxh4
Rxe3 47. g4 Rh1# 0-1