The Rook Ending That Closed the Olympiad

Roman Dehtiarov vs Mukhiddin Madaminov

Chess Olympiad, Samarkand · 27 September 2026 · 0–1

The last round, the other three boards drawn, and a level rook ending lost by one pawn move: b4, and the black king walks in.

Opening
Ruy Lopez, Anderssen Variation (C77)
Moves
55 (110 half-moves)
Ends in
a resignation on Rb4+

Watch it played in 3D

The game, move by move

A quiet Ruy Lopez

  1. 1. e4 King’s pawn
  2. 1… e5
  3. 2. Nf3
  4. 2… Nc6
  5. 3. Bb5 Bb5 — the Ruy Lopez
  6. 3… a6
  7. 4. Ba4
  8. 4… Nf6
  9. 5. d3 d3, the quiet way
  10. 5… b5
  11. 6. Bb3
  12. 6… Bc5
  13. 7. c3
  14. 7… d6
  15. 8. Bg5
  16. 8… h6
  17. 9. Bh4
  18. 9… g5 g5, at the bishop
  19. 10. Bg3
  20. 10… Bb6
  21. 11. a4
  22. 11… Rb8
  23. 12. Nbd2
  24. 12… Ne7
  25. 13. axb5
  26. 13… axb5
  27. 14. d4
  28. 14… Ng6
  29. 15. dxe5
  30. 15… dxe5
  31. 16. h4 h4, at the pawns
  32. 16… Ng4

Everything comes off

  1. 17. hxg5
  2. 17… Nf4 Nf4, into the hole
  3. 18. Bxf4
  4. 18… exf4
  5. 19. Nd4
  6. 19… Bxd4
  7. 20. cxd4
  8. 20… Qxd4
  9. 21. Qe2
  10. 21… hxg5
  11. 22. Rxh8+ The rooks come off on h8
  12. 22… Qxh8
  13. 23. O-O-O White castles long, at move twenty-three
  14. 23… Qd4
  15. 24. Nf3
  16. 24… Qxf2
  17. 25. Qxf2 The queens come off
  18. 25… Nxf2
  19. 26. Rd2
  20. 26… Nxe4
  21. 27. Re2
  22. 27… f5
  23. 28. Nxg5
  24. 28… Bb7
  25. 29. Bc2
  26. 29… Kd7
  27. 30. Nxe4
  28. 30… fxe4
  29. 31. Bxe4
  30. 31… Bxe4
  31. 32. Rxe4 The rook takes back A rook each. White has pawns on b2 and g2, Black on b5, c7 and f4, and the engine has it close to level.
  32. 32… Rf8 Rf8, behind the f-pawn

b4, and the king walks in

  1. 33. b4 b4 — the move that lost Re5 held. The pawn on b4 is a target, and the black king now has a road up the board to it. The engine’s score goes from under a pawn to more than four.
  2. 33… Kd6 The king walks up
  3. 34. Kd2
  4. 34… Kd5 Kd5
  5. 35. Kd3
  6. 35… c6 c6 c5 was quicker. This gives White one chance, Rd4+.
  7. 36. Re7 Re7, with three minutes left And the chance goes.
  8. 36… Rg8
  9. 37. Rd7+
  10. 37… Ke5
  11. 38. Re7+
  12. 38… Kd6
  13. 39. Rf7
  14. 39… Rg4
  15. 40. Rf6+
  16. 40… Ke5
  17. 41. Rxc6 The rook takes c6
  18. 41… Rg3+
  19. 42. Ke2
  20. 42… Rxg2+ The rook takes g2, with check
  21. 43. Kf3
  22. 43… Rg3+
  23. 44. Kf2
  24. 44… Rd3
  25. 45. Rb6
  26. 45… Rd5
  27. 46. Kf3
  28. 46… Kd4 Kd4 — the king goes on
  29. 47. Rc6
  30. 47… Re5

The b-pawn

  1. 48. Kxf4 The king takes the f-pawn Madaminov has let it go. The white king is now as far from the b-pawns as it can be.
  2. 48… Re4+
  3. 49. Kf3
  4. 49… Kd3 Kd3, towards the b-pawn
  5. 50. Rc5
  6. 50… Rxb4 Rxb4 — and the pawn is gone Black’s b-pawn is passed, and the black king is beside it.
  7. 51. Rd5+
  8. 51… Kc4 Kc4
  9. 52. Ke4
  10. 52… Rb1
  11. 53. Rd4+
  12. 53… Kc3
  13. 54. Rd3+
  14. 54… Kc2 Kc2
  15. 55. Kd4
  16. 55… Rb4+ Rb4+ — and Dehtiarov resigned The b-pawn cannot be stopped, and the engine counts a forced mate. Uzbekistan won the match 2½–1½, and the Olympiad, at home.

How it ends

Rb4 gives check.

White gave up a queen, a rook, 2 bishops, 2 knights and 8 pawns; Black lost a queen, a rook, 2 bishops, 2 knights and 7 pawns.

Watch it played in 3D

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