CChessStats

World B-12 (Stage 1, Group-A) Cup 2025

Open SwissStandard

27 players participated in this 7-round tournament, held from 23 Jun 2025 to 29 Jun 2025 in Batumi, Georgia. 5 titled players from 8 federations. Top 10 Elo average was 1983, and top seed was Abdalrahman Sameh Mohamed (🇪🇬 EGY, IM, 2242).

Abdalrahman Sameh Mohamed (🇪🇬 EGY, IM, 2242) won with 6.0/7, ahead of Ethan Guo (5.5) and Barys Kireyeu (5.0). Sameh Mohamed won solo starting round 3.

The biggest upset came in round 7: Georgiy A Dyachkov (1567) beat Aryan Mehta (1904), a +337-point gap.

Location
🇬🇪Batumi, Georgia
Dates
23 Jun 2025 → 29 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇪🇬IMAbdalrahman Sameh Mohamed2242
Avg top 10
1,983
Participants
27
Titled players · 5
IM×1
FM×1
CM×3
Federations · 8 represented
FIDE (no federation)×7
🇨🇦Canada×4
🇺🇸United States of America×3
🇮🇳India×2
🇪🇬Egypt×1
🇨🇳China×1
🇸🇬Singapore×1
🇬🇪Georgia×1
Top 3

How it unfolded

Top 6 · 7 rounds

IM Abdalrahman Sameh Mohamed led from R3; +0.5-point edge over the runner-up.

Co-leaders
12
5
1
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Sameh Mohamed6Guo5.5Kireyeu5Li5Dyachkov4.5Fisher4.5
R3–R7 · LEAD HELD

IM Abdalrahman Sameh Mohamed held the sole lead from R3 through R7 without losing it.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

IM Abdalrahman Sameh Mohamed drew with FM Ethan Guo (White).

R1–R5 · WIN STREAK

IM Abdalrahman Sameh Mohamed won 5 in a row (R1–R5).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1IMAbdalrahman Sameh Mohamed*
½
½
1
2FMEthan Guo
½
*——
3Barys Kireyeu
½
—*—
4Brian Borui Li
0
——*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Sameh Mohamed, AbdalrahmanIM2242EGY+12N+8B+6N+5B+4N=2B=3N6.028.532.527.252220-2.3
2Guo, EthanFM2118USA+9N=13B+14N=17B+8N=1N+7B5.525.028.021.752143+6.0
3Kireyeu , Barys1839FID+23N+10B−13N+6B=7B+5N=1B5.026.528.520.002042+75.6
4Li, Brian Borui1901USA+25N+26B=5N+13B−1B=7N+9B5.023.524.013.752010+33.6
5Fisher, TimofeyCM1937FID+20B+18N=4B−1N+13B−3B+14N4.526.028.515.001985+17.1
6Dyachkov, Georgiy A1567FID+22B+15N−1B−3N+20B=8B+17N4.524.026.013.001940+125.2
7Yang, Lanqin1931CHN+19N=14B=10N+9B=3N=4B−2N4.027.030.015.751938+4.0
8Wang, Jacob S1891USA+11B−1N+24B+18N−2B=6N=10B4.027.029.013.251921+8.0
9Diasamidze, Rati1706GEO−2B+21N+11B−7N+23B+17B−4N4.024.026.011.501837+49.2
10Aarav ACM2145IND+16B−3N=7B+15B=17N=14B=8N4.023.526.514.251891-77.6
11Chua, Zachary McDonald1641CAN−8N+12B−9N+26B−15N+24B+18B4.020.521.09.501693+12.0
12Babeikin, Kiryl1762FID−1B−11N−21B+22N+27N+23B+19N4.019.520.07.501744-5.7
13Elemes, Beibarys1875KAZ+21B=2N+3B−4N−5N=19B=15N3.526.529.013.501814-17.9
14Somaraju, Sai Vivan KarthikeyaCM1833NZL+27B=7N−2B+16N=18B=10N−5B3.524.525.09.501874+14.4
15Kong, Brian1675CAN=17N−6B+22B−10N+11B=16N=13B3.522.524.511.001814+45.2
16Osetrov, Prokhor1723FID−10N+25B+26N−14B=19N=15B=22N3.517.518.06.251753-2.0
17Aryan Mehta1904IND=15B=22N+20B=2N=10B−9N−6B3.024.026.010.001777-46.0
18Suresh, Barath Subramanian1804CAN+24N−5B+19N−8B=14N=20B−11N3.021.523.58.001655-30.7
19Del, Nikita1675FID−7B+27N−18B+21N=16B=13N−12B3.020.521.06.501678-4.8
20Kalinichenko, German Yu1691FID−5N+23B−17N+24B−6N=18NF2.519.019.05.501594-27.6
21Brits, Etienne1544RSA−13N−9B+12N−19B+26N−22B=25N2.518.018.55.251564+2.4
22Bro Jacobsen, Samuel1890DEN−6N=17B−15N−12BF+21N=16B2.021.021.05.751575-94.8
23Kibe, Marten1492EST−3B−20NF+25B−9N−12N+27B2.017.517.52.001552+14.4
24Doemer, Andreas0CAN−18BF−8N−20N+25B−11N+26B2.015.515.52.0014920.0
25Ohng, Wei Zhe Quilliam1642SGP−4B−16N+27B−23N−24NF=21B1.515.515.51.751475-44.4
26FIDE 108577880—F−4N−16B−11N−21B=27B−24N0.517.517.50.2512880.0
27Maari Kelly Sosi1443KEN−14N−19B−25NF−12B=26N−23N0.514.514.50.25882-44.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets