AlphaChess: Christmas Edition - North London FIDE Classical Event - Ivy (U1800)
Open SwissStandard
41 players participated in this 6-round tournament, held from 13 Dec 2025 to 14 Dec 2025 in London EN6, England. 3 federations represented. Top 10 Elo average was 1705, and top seed was Brendan OGorman (🇬🇧 ENG, 1777).
Willem de Boer (🇬🇧 ENG, 1613) won with 5.0/6, ahead of Rufus Behr (4.5) and Vineet Sood (4.0). de Boer won solo starting round 4.
The biggest upset came in round 3: Trisha Katiyar (1483) beat Aviraj Bhaduri (1702), a +219-point gap.
Location
🇬🇧London EN6, England
Dates
13 Dec 2025 → 14 Dec 2025
Time control
Standard: All Moves in 80 Min. Incr. 10 Sec. / /
System
Swiss · 6 rounds
Avg top 10
1,705
Participants
41
Federations · 3 represented
🇬🇧England×38
🇮🇳India×2
🇬🇧Wales×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsWillem de Boer led from R4; +0.5-point edge over the runner-up.
Co-leaders
17
7
2
1
1
1
R4–R6 · LEAD HELD
Willem de Boer held the sole lead from R4 through R6 without losing it.
WIN STREAKS · 3 top finishers
Willem de Boer 5 wins (R1–R5)Rufus Behr 4 wins (R2–R5)Vineet Sood 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Willem de Boer | * | — | 1 | — |
| 2Rufus Behr | — | * | — | — |
| 3Vineet Sood | 0 | — | * | — |
| 4Sameera Kodukula | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | de Boer, Willem | 1613 | ENG | +10B | +35N | +8B | +3B | +5N | F | 5.0 | 14.5 | 14.5 | 14.50 | 2518 | +76.4 |
| 2 | Behr, Rufus | 1650 | ENG | =18N | +30B | +25N | +11B | +9N | F | 4.5 | 12.0 | 12.0 | 10.75 | 2486 | +88.0 |
| 3 | Sood, Vineet | 1685 | ENG | +35B | +6N | +11B | −1N | +8B | F | 4.0 | 15.5 | 15.5 | 10.50 | 1927 | +30.0 |
| 4 | Kodukula, Sameera | 1677 | ENG | +21N | −5B | +16N | +29B | +12N | F | 4.0 | 12.5 | 12.5 | 9.00 | 2460 | +38.0 |
| 5 | Efstathiou, James | 0 | ENG | +?B | +4N | =7B | +13N | −1B | F | 3.5 | 15.5 | 15.5 | 8.75 | 1748 | 0.0 |
| 6 | Vikram G N | 1585 | IND | +37N | −3B | +15N | +10B | =7B | F | 3.5 | 13.5 | 13.5 | 7.75 | 1734 | +32.0 |
| 7 | Pride, Stephen C | 1709 | ENG | +24N | =29B | =5N | +21B | =6N | F | 3.5 | 12.5 | 12.5 | 8.25 | 1762 | +2.4 |
| 8 | Dupuis, Daniel | 1634 | ENG | +33N | +32B | −1N | +17B | −3N | F | 3.0 | 14.5 | 14.5 | 5.50 | 1598 | -7.6 |
| 9 | Czarnuch, Dominic | 1773 | ENG | =16B | =17N | +19B | +22N | −2B | F | 3.0 | 14.0 | 14.0 | 7.00 | 1691 | -20.0 |
| 10 | So, Mason | 0 | ENG | −1N | +33B | +23N | −6N | +21B | F | 3.0 | 14.0 | 14.0 | 5.50 | 1545 | 0.0 |
| 11 | Llewellyn, Julian D | 1768 | ENG | +32N | +25B | −3N | −2N | +22B | F | 3.0 | 14.0 | 14.0 | 5.50 | 1614 | -16.0 |
| 12 | Williams, Stephen | 1657 | WLS | +20N | −13B | +24N | +26B | −4B | F | 3.0 | 13.5 | 13.5 | 6.50 | 1642 | -1.6 |
| 13 | Stell, Edmund | 1768 | ENG | +19B | +12N | F | −5B | +15N | F | 3.0 | 11.5 | 11.5 | 8.00 | 2384 | +32.4 |
| 14 | Fortunato, Bartolomeo | 1651 | ENG | −29N | +23B | −21N | +24B | +26N | F | 3.0 | 9.5 | 9.5 | 6.00 | 2352 | +44.0 |
| 15 | Yu, Zhongbo | 1460 | ENG | =31N | +18B | −6B | +34N | −13B | F | 2.5 | 12.0 | 12.0 | 4.75 | 1491 | +3.2 |
| 16 | Acharya, Nikesh | 1663 | ENG | =9N | =37B | −4B | =31N | +34B | F | 2.5 | 10.5 | 10.5 | 4.00 | 1661 | +0.4 |
| 17 | Saxena, Reyansh | 1641 | ENG | F | =9B | +26N | −8N | +23B | F | 2.5 | 10.0 | 10.0 | 5.50 | 1722 | +16.8 |
| 18 | Condron, Leonardo | 0 | ENG | =2B | −15N | +35B | F | +28N | F | 2.5 | 10.0 | 10.0 | 5.25 | 1636 | 0.0 |
| 19 | Butcher, Nathaniel | 1634 | ENG | −13N | +27B | −9N | =30B | +40B | F | 2.5 | 9.5 | 9.5 | 2.75 | 1580 | -13.2 |
| 20 | Condron, Harrison | 0 | ENG | −12B | −?N | =31B | +33B | +30N | F | 2.5 | 7.5 | 7.5 | 3.75 | 1619 | 0.0 |
| 21 | Cuzick-Leigh, Oliver | 0 | ENG | −4B | +28N | +14B | −7N | −10N | F | 2.0 | 15.5 | 15.5 | 5.00 | 1639 | 0.0 |
| 22 | Rozmus, Oliver | 1509 | ENG | −26N | +31B | +30N | −9B | −11N | F | 2.0 | 11.0 | 11.0 | 3.00 | 1483 | -6.4 |
| 23 | V, Krish | 1529 | ENG | +36B | −14N | −10B | +32N | −17N | F | 2.0 | 11.0 | 11.0 | 2.50 | 1466 | -10.4 |
| 24 | Vijay, Kayal | 1553 | ENG | −7B | +40N | −12B | −14N | +31B | F | 2.0 | 11.0 | 11.0 | 1.50 | 872 | -40.8 |
| 25 | Ben-Eshak, Djad | 1611 | ENG | +41B | −11N | −2B | F | +29N | F | 2.0 | 11.0 | 11.0 | 1.50 | 909 | -29.6 |
| 26 | Gampa, Dyuthi Sri | 1572 | ENG | +22B | +41N | −17B | −12N | −14B | F | 2.0 | 10.5 | 10.5 | 2.00 | 1421 | -30.4 |
| 27 | McWilliams, Mark | 1538 | ENG | +38B | −19N | −32B | F | +35N | F | 2.0 | 7.5 | 7.5 | 1.50 | 1735 | +9.6 |
| 28 | Fenton, Sam | 1519 | ENG | +34B | −21B | F | +40N | −18B | F | 2.0 | 6.0 | 6.0 | 1.50 | 2296 | +9.4 |
| 29 | Mridul Sharma | 0 | IND | +14B | =7N | F | −4N | −25B | F | 1.5 | 12.5 | 12.5 | 4.75 | 1574 | 0.0 |
| 30 | Irie -Williams, Silk | 1592 | ENG | +39B | −2N | −22B | =19N | −20B | F | 1.5 | 12.0 | 12.0 | 1.75 | 1483 | -24.4 |
| 31 | Li, Alice | 0 | ENG | =15B | −22N | =20N | =16B | −24N | F | 1.5 | 11.5 | 11.5 | 3.75 | 1353 | 0.0 |
| 32 | Green, Alfie | 0 | ENG | −11B | −8N | +27N | −23B | =33N | F | 1.5 | 11.5 | 11.5 | 2.75 | 1435 | 0.0 |
| 33 | De Boer, Lara | 1452 | ENG | −8B | −10N | +38B | −20N | =32B | F | 1.5 | 10.5 | 10.5 | 1.25 | 834 | -10.4 |
| 34 | Liu, Kunyu Vincent | 1496 | ENG | −28N | =39N | +41B | −15B | −16N | F | 1.5 | 7.5 | 7.5 | 0.25 | 1210 | -52.4 |
| 35 | Carter, Steve | 0 | ENG | −3N | −1B | −18N | +38N | −27B | F | 1.0 | 14.0 | 14.0 | 0.50 | 812 | -93.2 |
| 36 | Katiyar, Trisha | 1483 | ENG | −23N | F | +37B | F | F | F | 1.0 | 2.5 | 2.5 | 0.50 | 1616 | +14.0 |
| 37 | Bhaduri, Aviraj | 1702 | ENG | −6B | =16N | −36N | F | F | F | 0.5 | 7.0 | 7.0 | 1.25 | 1304 | -60.0 |
| 38 | Mayer, Ira | 0 | ENG | −27N | F | −33N | −35B | =?N | F | 0.5 | 4.5 | 4.5 | 0.00 | 809 | 0.0 |
| 39 | Fenton, Frederick | 1487 | ENG | −30N | =34B | F | F | F | F | 0.5 | 3.0 | 3.0 | 0.75 | 1351 | -14.0 |
| 40 | Croos, Haadhvin Dave | 0 | ENG | F | −24B | F | −28B | −19N | −?N | 0.0 | 6.5 | 6.5 | 0.00 | 808 | 0.0 |
| 41 | Ganner, Tony | 0 | ENG | −25N | −26B | −34N | F | F | F | 0.0 | 5.5 | 5.5 | 0.00 | 760 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Behr, RufusENG+88.04.5 pts · #2
- 2de Boer, WillemENG+76.45.0 pts · #6
- 3Fortunato, BartolomeoENG+44.03.0 pts · #4
Top rating losers
- 1Carter, SteveENG-93.21.0 pts · #37
- 2Bhaduri, AvirajENG-60.00.5 pts · #32
- 3Liu, Kunyu VincentENG-52.41.5 pts · #34
Biggest upsets
- R3+219 Elo gap
- R5+123 Elo gap
- R4+118 Elo gap