Chessence Masters Tournament No. 12
10 players participated in this 5-round tournament, held from 05 Dec 2025 to 07 Dec 2025 in Willingen, Germany. 1 titled players from 3 federations. Top 10 Elo average was 1761, and top seed was Anastasia Voigt (🇩🇪 GER, WFM, 2061).
Mark Mueller (🇩🇪 GER, 2004) won with 4.0/5, ahead of Peter Schnatterbeck (3.5) and Karel Dusbaba (3.5). Mueller won solo starting round 2.
The biggest upset came in round 1: Othmar Zenker (1947) beat Anastasia Voigt (WFM, 2061), a +114-point gap.
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How it unfolded
Top 6 · 5 roundsMark Mueller led from R2; +0.5-point edge over the runner-up.
Mark Mueller held the sole lead from R2 through R5 without losing it.
Mark Mueller beat Peter Schnatterbeck (Black).
Mark Mueller 4 wins (R1–R4)Karel Dusbaba 3 wins (R2–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Mark Mueller | * | 1 | — | 1 |
| 2Peter Schnatterbeck | 0 | * | 1 | ½ |
| 3Karel Dusbaba | — | 0 | * | ½ |
| 4Ralf Montag | 0 | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mueller, Mark | 2004 | GER | +8N | +5B | +2N | +4B | F | 4.0 | 9.0 | 9.0 | 9.00 | 2755 | +26.0 |
| 2 | Schnatterbeck, Peter | 0 | ENG | +3N | =4N | −1B | +6B | +9N | 3.5 | 12.0 | 13.0 | 7.75 | 1995 | 0.0 |
| 3 | Dusbaba, Karel | 1960 | CZE | −2B | +7N | +5N | +8B | =4N | 3.5 | 10.0 | 11.0 | 6.25 | 2275 | +27.8 |
| 4 | Montag, Ralf | 1989 | GER | +9N | =2B | =6N | −1N | =3B | 2.5 | 13.0 | 14.0 | 5.50 | 1947 | -4.4 |
| 5 | Zenker, Othmar | 1947 | GER | +10N | −1N | −3B | =7B | =6N | 2.0 | 11.5 | 12.0 | 2.50 | 1912 | -4.8 |
| 6 | Kehrel, Eike | 2003 | GER | =7B | =10N | =4B | −2N | =5B | 2.0 | 10.0 | 10.5 | 3.50 | 1972 | -3.4 |
| 7 | Philipp, Nils | 1892 | GER | =6N | −3B | =9B | =5N | =8N | 2.0 | 8.5 | 9.5 | 3.00 | 1860 | -4.6 |
| 8 | Tornow, Michael | 1929 | GER | −1B | =9N | F | −3N | =7B | 1.0 | 10.5 | 11.0 | 1.50 | 1726 | -21.2 |
| 9 | Maucher, Richard | 1822 | GER | −4B | =8B | =7N | F | −2B | 1.0 | 9.0 | 9.0 | 1.50 | 1812 | -1.2 |
| 10 | Voigt, AnastasiaWFM | 2061 | GER | −5B | =6B | F | F | F | 0.5 | 5.0 | 5.0 | 1.00 | 1782 | -29.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Dusbaba, KarelCZE+27.83.5 pts · #2
- 2Mueller, MarkGER+26.04.0 pts · #3
- 3Schnatterbeck, PeterENG0.03.5 pts · #1
- 1Voigt, AnastasiaWFMGER-29.60.5 pts · #10
- 2Tornow, MichaelGER-21.21.0 pts · #8
- 3Zenker, OthmarGER-4.82.0 pts · #5
- R1+114 Elo gap