Algerian Senior U50 Chess Championship 2025
Open SwissStandard
22 players participated in this 7-round tournament, held from 07 Aug 2025 to 09 Aug 2025 in Medea, Algeria. Top 10 Elo average was 1742, and top seed was Noureddine Hannoun (🇩🇿 ALG, CM, 2240).
Mohamed Nader (🇩🇿 ALG, 0) won with 5.0/7, ahead of Yacine Khelifa (5.0) and Boualem Zarzar (4.0).
The biggest upset came in round 4: Lyes Yala (1753) beat Abdelkrim Yahiaoui (2148), a +395-point gap.
Location
🇩🇿Medea, Algeria
Dates
07 Aug 2025 → 09 Aug 2025
Time control
Standard: 40 minutes for the game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Avg top 10
1,742
Participants
22
Federations · 1 represented
🇩🇿Algeria×22
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R7; 2 players tied at 5.0/7, decided on Buchholz.
Co-leaders
14
7
4
1
2
1
1
R6 · LEADER CHANGE09 Aug
Kamel Saheb takes the sole lead (5.5/6).
R7 · TIEBREAK CLUSTER
2 players finish on 5.0/7. Nader takes the title on Buchholz Cut1 (16.0).
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Mohamed Nader lost to Yacine Khelifa (Black).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Mohamed Nader | * | 0 | — | 1 |
| 2Yacine Khelifa | 1 | * | — | — |
| 3Boualem Zarzar | — | — | * | — |
| 4Lyes Yala | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Nader, Mohamed | 0 | ALG | +4N | −?B | +9N | +?B | −2N | +5B | +?N | 5.0 | 16.0 | 16.0 | 11.00 | 1812 | 0.0 |
| 2 | Khelifa, Yacine | 0 | ALG | +11B | +?N | +?B | −?N | +1B | +?N | −?N | 5.0 | 8.0 | 8.0 | 8.00 | 1776 | 0.0 |
| 3 | Zarzar, Boualem | 1799 | ALG | −18N | −15B | −6N | +21B | +20N | +19B | +13N | 4.0 | 14.0 | 14.5 | 6.50 | 1734 | -21.2 |
| 4 | Yala,Lyes | 1753 | ALG | −1B | +20N | +17B | +?N | −?B | +11N | −?B | 4.0 | 11.5 | 11.5 | 6.50 | 2437 | +21.2 |
| 5 | Oueld Mohamed, Othmane | 1742 | ALG | −?B | +22N | +10B | −?N | +?B | −1N | +12B | 4.0 | 11.0 | 11.0 | 6.00 | 2348 | +10.2 |
| 6 | Hamdouni, Kouider | 1583 | ALG | =?B | −12N | +3B | −7N | +10B | −?N | +15B | 3.5 | 16.0 | 16.0 | 9.50 | 1698 | +24.4 |
| 7 | Ilias, Belhadj | 1670 | ALG | −?N | +?B | =16N | +6B | −?N | =?B | =9N | 3.5 | 9.0 | 9.0 | 6.25 | 1842 | +28.4 |
| 8 | Doukari,Ali | 1743 | ALG | −?N | −13B | +21N | +20B | =?N | +16B | −?B | 3.5 | 7.0 | 7.0 | 4.00 | 1825 | +17.2 |
| 9 | Madassi, Mohamed | 1768 | ALG | =10B | −?N | −1B | +17N | =12B | =15N | =7B | 3.0 | 19.5 | 19.5 | 8.50 | 1732 | -7.6 |
| 10 | Ibbou, Sid Ali | 0 | ALG | =9N | =?B | −5N | +15B | −6N | −14B | +16N | 3.0 | 18.5 | 18.5 | 6.50 | 1657 | 0.0 |
| 11 | Labassi, Mustapha | 1757 | ALG | −2N | +19B | +18N | −?B | +14N | −4B | −?N | 3.0 | 16.0 | 16.0 | 7.00 | 1825 | +10.8 |
| 12 | Khefif, Mohamed | 1634 | ALG | =?N | +6B | −?N | −13B | =9N | +20B | −5N | 3.0 | 14.5 | 14.5 | 6.00 | 1660 | +6.8 |
| 13 | Guesmia, Khaled | 1616 | ALG | −?B | +8N | +?B | +12N | −?B | −?N | −3B | 3.0 | 10.5 | 10.5 | 6.50 | 1854 | +19.0 |
| 14 | Mostaine Boucetta,Brahim | 1701 | ALG | −?N | +21B | −?N | +18B | −11B | +10N | −?B | 3.0 | 8.5 | 8.5 | 5.50 | 1639 | -3.2 |
| 15 | Lassaci , Mhamed | 1688 | ALG | −?B | +3N | −?B | −10N | +22N | =9B | −6N | 2.5 | 13.5 | 13.5 | 5.50 | 1751 | +13.6 |
| 16 | Ferrah, Hacene | 1799 | ALG | +22B | −?N | =7B | +?N | −?B | −8N | −10B | 2.5 | 10.0 | 10.0 | 1.75 | 1622 | -12.8 |
| 17 | Bouzid, Salah | 1564 | ALG | +?N | −?B | −4N | −9B | −19N | +22B | =21N | 2.5 | 9.5 | 9.5 | 0.25 | 1481 | -23.2 |
| 18 | Bouflah, Mohamed | 0 | ALG | +3B | −?N | −11B | −14N | +21B | F | F | 2.0 | 10.5 | 10.5 | 4.50 | 1697 | 0.0 |
| 19 | Ait Youcef , Noureddine | 1651 | ALG | −?B | −11N | +22B | −?N | +17B | −3N | F | 2.0 | 9.5 | 9.5 | 2.50 | 1648 | -0.8 |
| 20 | Abdlaziz, Mabrouk | 1592 | ALG | −?N | −4B | F | −8N | −3B | −12N | +22B | 1.0 | 14.5 | 14.5 | 0.00 | 1439 | -37.2 |
| 21 | Chekired , Mehdi | 1521 | ALG | −?B | −14N | −8B | −3N | −18N | F | =17B | 0.5 | 15.0 | 15.0 | 1.25 | 1383 | -23.2 |
| 22 | Sider, Hellel Habib | 1463 | ALG | −16N | −5B | −19N | F | −15B | −17N | −20N | 0.0 | 14.5 | 14.5 | 0.00 | 873 | -56.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ilias, BelhadjALG+28.43.5 pts · #14
- 2Hamdouni, KouiderALG+24.43.5 pts · #10
- 3Yala,LyesALG+21.24.0 pts · #2
Top rating losers
- 1Sider, Hellel HabibALG-56.80.0 pts · #22
- 2Abdlaziz, MabroukALG-37.21.0 pts · #19
- 3Chekired , MehdiALG-23.20.5 pts · #21
Biggest upsets
- R4+395 Elo gap
- R3+278 Elo gap
- R1+278 Elo gap