The first Czech league, the Extraliga, played its third double-header last weekend, 7 and 8 January 2023, with rounds five and six of the 2022-23 season. For many, many years, the Novoborsky SK has been the top club for many, many years. Novoborsky SK is also a top club on the international stage, with several medal wins in the European Club Cup, including two gold medals, in 2013 and in 2022.
Novy Bor is led by Czech top player David Navara. A number of other Czech grandmasters form the core of the team, but international grandmasters also add strength to the team. No less than three Indian grandmasters play for the Czech club: Pentala Harikrishna, Vidit Gujrathi and Krishnan Sasikiran, though Harikrishna and Vidit have not yet played this season. Team manager and spiritus rector is Petr Boleslav, who is also the leading man behind the Prague Chess Festival (to be held again in June).
Other teams also feature strong international guest players, many from the neighbouring countries of Poland and Slovakia, but on the whole the teams are made up mainly of local forces.
The Czech team championship is played with 12 teams, which play a round robin. Each team consists of eight players. Each match win yields 3 points, but in case of a 4:4 tie both teams get 1 point.
In round 5 Novy Bor played against ŠK Líně and though they again played without their two Indian super grandmasters they came to a clear 6.5:1.5 victory.
The Sunday match against relegation candidate OAZA loznice.cz ended with the same result.
In this match David Navara demonstrated the aggressive potential of the Nimzoindian.
| OAZ4 Straka Vojtech IM2424 | 0–1 | NOV3 Navara David GM2676 | |||||||||||||||||||||
 | Czech Extraliga 2022-2023 Czech Republic08.01.2023[Schulz,A] | | |||||||||||||||||||||
The closest rival of Noby Bor is the team of Lysá nad Labem which defeated ŠK Dopravní podnik Praha 7:1 on Saturday and then narrowly defeated Siesta Labs Unichess 4.5:3.5 on Sunday. On board four for Lysá nad Labem played the well-known Czech grandmaster Vlastimil Jansa, who celebrated his 80th birthday last November. He won one game and lost one.
With five wins and one draw Výstaviště Lysá nad Labem is two points behind Novy Bor butthe two teams still have to play against each other.
Standings after six rounds
| Rk. | Team | + | = | - | Tb1 | Tb2 | |
| 1 | 1. Novoborský ŠK | 6 | 6 | 0 | 0 | 18 | 36,5 |
| 2 | Výstaviště Lysá nad Labem | 6 | 5 | 1 | 0 | 16 | 32 |
| 3 | GASCO Pardubice | 6 | 4 | 1 | 1 | 13 | 31 |
| 4 | ZIKUDA Turnov | 6 | 4 | 1 | 1 | 13 | 27,5 |
| 5 | BŠŠ Frýdek-Místek | 6 | 4 | 1 | 1 | 13 | 27 |
| 6 | Šachový klub Moravská Slavia | 6 | 3 | 1 | 2 | 10 | 24,5 |
| 7 | INGEM - ŠK Líně | 6 | 2 | 2 | 2 | 8 | 22,5 |
| 8 | Slavia Kroměříž | 6 | 2 | 1 | 3 | 7 | 23 |
| 9 | Siesta Labs Unichess | 6 | 1 | 0 | 5 | 3 | 20 |
| 10 | ŠK Dopravní podnik Praha | 6 | 1 | 0 | 5 | 3 | 15 |
| 11 | OAZA loznice.cz | 6 | 0 | 0 | 6 | 0 | 14,5 |
| 12 | Šachy Hošťálková | 6 | 0 | 0 | 6 | 0 | 14,5 |
Games
