CChessStats

Strommen host 2025

Open SwissStandard

12 players participated in this 12-round tournament, held from 22 Nov 2025 to 18 Dec 2025 in Strommen, Norway. Top 10 Elo average was 1786, and top seed was Frode Lillevold (🇳🇴 NOR, 2164).

Ask Amundsen (🇳🇴 NOR, 2104) won with 9.5/12, ahead of Frode Lillevold (8.0) and Steinar Sidselrud (6.5). Amundsen took the lead from round 5.

The biggest upset came in round 9: Gunnar Lilleng (1597) beat Aage Mella (1724), a +127-point gap.

Location
🇳🇴Strommen, Norway
Dates
22 Nov 2025 → 18 Dec 2025
Time control
Standard: 40 Moves in 85 Min. Incr. 10 Sec. / / 25 Min. Incr. 10 Sec.
System
Swiss · 12 rounds
Top seed
🇳🇴Frode Lillevold2164
Avg top 10
1,786
Participants
12
Federations · 1 represented
🇳🇴Norway×12
Top 3

How it unfolded

Top 6 · 12 rounds

Ask Amundsen led from R5; +1.5-point edge over the runner-up.

Co-leaders
5
1
1
1
1
1
1
1
1
1
1
1
36912R1R2R3R4R5R6R7R8R9R10R11R12Troen takes leadAmundsen takes lead
R4 · LEADER CHANGE29 Nov

Arild Troen takes the sole lead (3.5/4).

HEAD-TO-HEAD · WINNER VS 2ND · 2 games

Ask Amundsen 1.50.5 against Frode Lillevold (R3 1-0, R8 ½-½) — decisive in 1/2.

WIN STREAKS · 3 top finishers

Ask Amundsen 6+3 wins (R1–R7, R9–R12)Frode Lillevold 4 wins (R4–R7)Steinar Sidselrud 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Ask Amundsen*
1
½
1
1
1
2Frode Lillevold
0
½
*
1
½
1
3Steinar Sidselrud
0
0
½
*
1
4Arild Troen
0
0
0
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9R10R11R12PtsBu C1BuSBPerfΔ
1Amundsen, Ask2104NOR+6NF+2B+3B+4N+4B+7N=2N+8BF+5B+9N9.558.558.554.502304+32.2
2Lillevold, Frode2164NOR+8BF1N+7N+3B+5B+4N=1B=3N+6NF+6B8.063.063.045.502119-2.8
3Sidselrud, Steinar1979NOR+5B+10N+7B1N2NF+8B+9N=2BF+4N6.552.552.531.001986+7.0
4Troen, Arild1707NOR+11B=7N+5B+8N1B1N2B=6N+9B5N3B+10N6.065.566.522.001758+5.0
5Lilleng, Gunnar1597NOR3N+11N4N+10B=6B2N=9B+11B+7N+4B1N8B6.057.058.019.501674+12.0
6Bruun, Frank Olav1783NOR1B=9N8B+12B=5N7N+11N=4B+10N2B=7B2N5.058.559.514.501650-40.0
7Mella, Aage1724NOR+12N=4B3N2B+10N+6B1B8N5BF=6N+11N5.054.054.014.501683-14.4
8Domenech, Enrique Llorca1688NOR2NF+6N4BF+12B3N+7B1N9BF+5N4.051.051.017.001744+8.8
9Amarapala, Anton1612NORF=6B+12NFFF=5N3B4N+8N+10B1B4.040.040.012.501703+12.2
10Nygard, Morten0NORF3B+11N5N7B11B+12NF6BF9N4B2.035.535.52.0013920.0
11Eilertsen, Andreas0NOR4N5B10BF12N+10N6B5NFFF7B1.033.033.02.008520.0
12Synnes, Victor1505NOR7BF9B6N+11B8N10B1.021.021.01.00902-20.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets