Mekan Iyi Fikir - Poseidon Chess Sports Club Chess Tournament
19 players participated in this 6-round tournament, held from 13 Dec 2025 to 14 Dec 2025 in Istanbul - Kadikoy, Turkey. Top 10 Elo average was 1656, and top seed was Ibrahim Enes Isikyildiz (🇹🇷 TUR, 1945).
Abdullah Emre Ertan (🇹🇷 TUR, 1608) won with 5.0/6, ahead of Ilhami Batuhan Yelekci (4.5) and Lisan Doruk Karaca (4.5). Ertan won solo starting round 3.
The biggest upset came in round 3: Abdullah Emre Ertan (1608) beat Ibrahim Enes Isikyildiz (1945), a +337-point gap.
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How it unfolded
Top 6 · 6 roundsAbdullah Emre Ertan led from R3; +0.5-point edge over the runner-up.
Abdullah Emre Ertan held the sole lead from R3 through R6 without losing it.
Abdullah Emre Ertan drew with Lisan Doruk Karaca (Black).
Abdullah Emre Ertan 4 wins (R1–R4)Lisan Doruk Karaca 4 wins (R2–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Abdullah Emre Ertan | * | ½ | ½ | — |
| 2Lisan Doruk Karaca | ½ | * | — | — |
| 3Ilhami Batuhan Yelekci | ½ | — | * | 0 |
| 4Amed Civan Kaya | — | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ertan, Abdullah Emre | 1608 | TUR | +15B | +5N | +6B | +8N | =2B | =3N | 5.0 | 18.5 | 19.5 | 15.00 | 1934 | +94.4 |
| 2 | Yelekci, Ilhami Batuhan | 1629 | TUR | +16N | −4B | +11N | +13B | =1N | +6B | 4.5 | 16.5 | 17.5 | 11.00 | 1775 | +36.8 |
| 3 | Karaca, Lisan Doruk | 1620 | TUR | −13B | +15N | +18B | +7N | +6B | =1B | 4.5 | 14.0 | 14.0 | 9.50 | 1987 | +32.0 |
| 4 | Kaya, Amed Civan | 1563 | TUR | +19B | +2N | −8B | −6N | +5B | +7N | 4.0 | 17.0 | 17.0 | 11.00 | 1757 | +58.4 |
| 5 | Ustabasi, Asaf Demir | 1535 | TUR | +10N | −1B | =9N | +14B | −4N | +15B | 3.5 | 17.0 | 18.0 | 7.50 | 1606 | +18.8 |
| 6 | Isikyildiz, Ibrahim Enes | 1945 | TUR | +11N | +9B | −1N | +4B | −3N | −2N | 3.0 | 21.0 | 23.5 | 9.50 | 1591 | -94.0 |
| 7 | Ozdemir, Erden | 1539 | TUR | =14N | +10B | =12N | −3B | +11N | −4B | 3.0 | 16.0 | 18.0 | 7.50 | 1597 | +7.2 |
| 8 | Barutcu, Bahadir | 1726 | TUR | =12N | +14B | +4N | −1B | =9B | F | 3.0 | 16.0 | 16.0 | 8.50 | 1565 | -17.0 |
| 9 | Gokdai, Ahmet Orhan | 1583 | TUR | +18N | −6N | =5B | +12B | =8N | −10B | 3.0 | 14.5 | 14.5 | 5.25 | 1623 | +6.0 |
| 10 | Kaban, Mahmut | 1764 | TUR | −5B | −7N | F | +16B | +12N | +9N | 3.0 | 12.5 | 12.5 | 6.00 | 1600 | -19.4 |
| 11 | Kilic, Mehmet Tuna | 1535 | TUR | −6B | +19N | −2B | +18N | −7B | =14N | 2.5 | 12.5 | 12.5 | 1.00 | 1438 | -24.0 |
| 12 | Toraman, Doruk | 1505 | TUR | =8B | +13N | =7B | −9N | −10B | F | 2.0 | 14.0 | 14.0 | 5.00 | 1460 | -9.6 |
| 13 | Icer, Sarp | 0 | TUR | +3N | −12B | +17B | −2N | −16N | F | 2.0 | 13.0 | 13.0 | 5.50 | 1491 | 0.0 |
| 14 | Angin, Mert | 0 | TUR | =7B | −8N | +15B | −5N | F | =11B | 2.0 | 13.0 | 13.0 | 3.75 | 1498 | 0.0 |
| 15 | Kilicaslan, Ozgur | 1513 | TUR | −1N | −3B | −14N | F | +18B | −5N | 1.0 | 15.0 | 15.0 | 0.00 | 787 | -24.0 |
| 16 | Kayran, Mert | 1480 | TUR | −2B | −17N | F | −10N | +13B | F | 1.0 | 10.5 | 10.5 | 2.00 | 859 | -32.8 |
| 17 | Sezgin, Hakan Ertug | 1583 | TUR | F | +16B | −13N | F | F | F | 1.0 | 3.0 | 3.0 | 1.00 | 2280 | +7.2 |
| 18 | FIDE 6323880 | 0 | — | −9B | F | −3N | −11B | −15N | F | 0.0 | 12.0 | 12.0 | 0.00 | 763 | 0.0 |
| 19 | Gul, Zeynep | 1420 | TUR | −4N | −11B | F | F | F | F | 0.0 | 9.5 | 9.5 | 0.00 | 749 | -26.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Ertan, Abdullah EmreTUR+94.45.0 pts · #1
- 2Kaya, Amed CivanTUR+58.44.0 pts · #2
- 3Yelekci, Ilhami BatuhanTUR+36.84.5 pts · #4
- 1Isikyildiz, Ibrahim EnesTUR-94.03.0 pts · #6
- 2Kayran, MertTUR-32.81.0 pts · #17
- 3Gul, ZeynepTUR-26.00.0 pts · #16
- R3+337 Elo gap
- R5+325 Elo gap
- R6+316 Elo gap