Thomas Koch vs Ivan Sidletskyi

World Rapid Team 2023, 2023 · Result 1–0 · Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation (D41).

Ivan Sidletskyi23540

Thomas Koch24261

Notation · 129 moves

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

24.

25.

26.

27.

28.

29.

30.

31.

32.

33.

34.

35.

36.

37.

38.

39.

40.

41.

42.

43.

44.

45.

46.

47.

48.

49.

50.

51.

52.

53.

54.

55.

56.

57.

58.

59.

60.

61.

62.

63.

64.

65.

Level Up Your Chess

Turn this game into your next win

Replay Thomas Koch vs Ivan Sidletskyi with deep analysis, save the moments that matter, fold the ideas into your own opening repertoire, and drill the positions until they're second nature. CipherChess turns the games you study into the results you get — free to start.

Start Free on CipherChess

More Games By These Players

More games by Thomas Koch

Thomas Koch vs Isaac Garner0–1 · 2026 Thomas Koch vs Keyvan Farokhi0–1 · 2026 Peter Prohaszka vs Thomas Koch½–½ · 2026 Thomas Koch vs Ivan Ivanisevic½–½ · 2026 Thomas Koch vs Toms Kantans1–0 · 2026 Pavel V. Tregubov vs Thomas Koch1–0 · 2026

More games by Ivan Sidletskyi

Ivan Sidletskyi vs Jonas Christian Hecht1–0 · 2026 Ivan Sidletskyi vs Nadir Guliyev0–1 · 2026 Peter Balint vs Ivan Sidletskyi1–0 · 2026 Ivan Sidletskyi vs Giga Goderdzishvili1–0 · 2026 Anton Vitsiuk vs Ivan Sidletskyi0–1 · 2025 Ivan Sidletskyi vs Zsombor Pasti1–0 · 2025

Game details

White: Thomas Koch (2426)
Black: Ivan Sidletskyi (2354)
Result: 1–0
Event: World Rapid Team 2023
Year: 2023
Opening: Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation (D41)

About this chess game

This chess game between Thomas Koch (2426) and Ivan Sidletskyi (2354) was played at World Rapid Team 2023 in 2023 and finished 1–0. The opening was the Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation (D41). You can replay the full game move by move on the interactive board above, or open it on the CipherChess analysis board to study every move with the Stockfish engine.

Looking for more Thomas Koch games or Ivan Sidletskyi games? This Thomas Koch vs Ivan Sidletskyi encounter is one of millions of chess games indexed in the CipherChess mega database. Browse both players' full records, the openings they play most, and head-to-head results, then load any game onto the board to prepare your own lines against the Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation.

Frequently asked questions

Who won Thomas Koch vs Ivan Sidletskyi?

Thomas Koch vs Ivan Sidletskyi (2023) finished 1–0, a win for Thomas Koch.

What opening was played in Thomas Koch vs Ivan Sidletskyi?

The game opened with the Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation (ECO D41).

Can I replay this chess game move by move?

Yes. Use the interactive board on this page to step through every move of Thomas Koch vs Ivan Sidletskyi, or open it on the CipherChess analysis board to review it with the Stockfish engine.