KSK Hostturneringen 2025 R 1-3
21 players participated in this 3-round tournament, held from 10 Sept 2025 to 24 Sept 2025 in Kristiansand, Norway. 3 federations represented. Top 10 Elo average was 1773, and top seed was Kent Roger Samuelsen (🇳🇴 NOR, 1928).
Mark Shcherbyna (🇺🇦 UKR, 1681) won with 3.0/3, ahead of Kent Roger Samuelsen (2.0) and Ulrich Dalseth (2.0). Shcherbyna broke clear in the final round.
The biggest upset came in round 3: Mark Shcherbyna (1681) beat Kent Roger Samuelsen (1928), a +247-point gap.
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How it unfolded
Top 6 · 3 roundsMark Shcherbyna led from R3; +1.0-point edge over the runner-up.
Mark Shcherbyna never relinquished the lead after R3; final gap +1.0 over the runner-up.
Mark Shcherbyna beat Kent Roger Samuelsen (White).
Mark Shcherbyna won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Mark Shcherbyna | * | 1 | 1 | — |
| 2Kent Roger Samuelsen | 0 | * | — | 1 |
| 3Ulrich Dalseth | 0 | — | * | — |
| 4Olav August D Tonnessen | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Shcherbyna, Mark | 1681 | UKR | +9B | +3N | +2B | 3.0 | 4.0 | 5.0 | 5.00 | 2657 | +58.0 |
| 2 | Samuelsen, Kent Roger | 1928 | NOR | +4B | +15N | −1N | 2.0 | 5.0 | 6.0 | 3.00 | 1760 | -10.6 |
| 3 | Dalseth, Ulrich | 1786 | NOR | +17N | −1B | +11N | 2.0 | 4.0 | 4.5 | 1.50 | 1821 | +3.0 |
| 4 | Tonnessen, Olav August D | 1653 | NOR | −2N | +17B | +16N | 2.0 | 3.0 | 3.5 | 1.50 | 1899 | +19.0 |
| 5 | Andersen, Gunnar | 1774 | NOR | +13B | −10N | +9B | 2.0 | 2.0 | 3.0 | 2.00 | 1620 | -8.2 |
| 6 | Karlsen, Cyril | 1761 | NOR | F | +19N | +10B | 2.0 | 1.0 | 1.0 | 1.00 | 2509 | +34.0 |
| 7 | Fossheim, Matias Arhus | 0 | NOR | +18B | F | +12N | 2.0 | 1.0 | 1.0 | 1.00 | 1496 | 0.0 |
| 8 | Vatne, Benjamin Ljosland | 1620 | NOR | F | =11B | +20N | 1.5 | 1.0 | 1.0 | 0.50 | 1797 | +9.2 |
| 9 | Navidades, Pau Miquel | 0 | NOR | −1N | +13B | −5N | 1.0 | 5.0 | 6.0 | 1.00 | 1558 | 0.0 |
| 10 | Reinecke, Marten | 1647 | GER | F | +5B | −6N | 1.0 | 4.0 | 4.0 | 2.00 | 1768 | +13.2 |
| 11 | Myhre, Asbjorn | 1797 | NOR | =14B | =8N | −3B | 1.0 | 3.5 | 4.5 | 1.25 | 1565 | -18.6 |
| 12 | Tonnessen, Alf Tomas | 1476 | NOR | F | +14N | −7B | 1.0 | 3.0 | 3.0 | 1.00 | 2464 | +14.8 |
| 13 | Skorge, Geir Arne | 1594 | NOR | −5N | −9N | +18B | 1.0 | 3.0 | 3.0 | 0.00 | 974 | -5.2 |
| 14 | Leer-Helgesen, Andreas | 1667 | NOR | =11N | −12B | =17N | 1.0 | 2.0 | 2.5 | 0.75 | 1502 | -25.6 |
| 15 | Huse, Eirik | 1571 | NOR | +21N | −2B | — | 1.0 | 2.0 | 2.0 | 0.00 | 1857 | +26.4 |
| 16 | Arntsen, Frode | 1784 | NOR | F | +18N | −4B | 1.0 | 2.0 | 2.0 | 0.00 | 853 | -13.6 |
| 17 | Karlsen, Ciljan | 1606 | NOR | −3B | −4N | =14B | 0.5 | 4.0 | 5.0 | 0.50 | 1428 | -25.2 |
| 18 | FIDE 1597450 | 0 | — | −7N | −16B | −13N | 0.0 | 3.0 | 4.0 | 0.00 | 889 | 0.0 |
| 19 | Quist, Susanne | 1770 | NOR | F | −6B | — | 0.0 | 2.0 | 2.0 | 0.00 | 961 | -10.2 |
| 20 | FIDE 556001410 | 0 | — | F | F | −8B | 0.0 | 1.5 | 1.5 | 0.00 | 820 | 0.0 |
| 21 | Syrrist, Guttorm Strande | 1785 | NOR | −15B | — | — | 0.0 | 0.0 | 1.0 | 0.00 | 771 | -15.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Shcherbyna, MarkUKR+58.03.0 pts · #4
- 2Karlsen, CyrilNOR+34.02.0 pts · #5
- 3Huse, EirikNOR+26.41.0 pts · #6
- 1Leer-Helgesen, AndreasNOR-25.61.0 pts · #11
- 2Karlsen, CiljanNOR-25.20.5 pts · #14
- 3Myhre, AsbjornNOR-18.61.0 pts · #9
- R3+247 Elo gap
- R1+214 Elo gap
- R2+191 Elo gap