| APRIL |
MAY |
JUNE |
|
|
FRI |
1 |
|
|
| SAT |
4 |
|
BOOM Easter GP Cat-1
|
A
|
R
|
P
|
S |
|
BOOM Easter GP Cat-2
|
R
|
P
|
S |
|
45th Azerbaijan Chess Solving Championship 2026 (1)
|
A
|
R
|
P
|
S |
|
SAT |
2 |
|
▶ 34th Chess Solving Championship of Slovakia 2026 (1)
|
A |
|
SAT |
6 |
|
▶ Open Solving Championship of Serbia 2026
|
A |
|
▶ BOOM Spring Cat-1
|
A |
|
▶ BOOM Spring Cat-2 |
|
| SUN |
5 |
|
45th Azerbaijan Chess Solving Championship 2026 (2)
|
A
|
R
|
P
|
S |
|
Memorial of Oleg Efrosinin (1956-2026) No. 1
|
R
|
P
|
S |
|
Memorial of Oleg Efrosinin (1956-2026) No. 2
|
R
|
P
|
S |
|
SUN |
3 |
|
▶ 34th Chess Solving Championship of Slovakia 2026 (2)
|
A |
|
▶ OSCY Youth Challenge 3 Classical
|
A |
|
▶ OSCY Youth Challenge 3 Blitz |
|
SUN |
7 |
|
| MON |
6 |
|
MON |
4 |
|
MON |
8 |
|
| TUE |
7 |
|
Serbian Championship U10 2026
|
R
|
P
|
S |
|
Serbian Championship U14 2026
|
R
|
P
|
S |
|
Serbian Championship U20 2026
|
R
|
P
|
S |
|
TUE |
5 |
|
TUE |
9 |
|
|
|
|
|
| FRI |
10 |
|
FRI |
8 |
|
▶ Open Solving Tournament of ECSC 2026
|
A |
|
FRI |
12 |
|
| SAT |
11 |
|
48th German Solving Championship 2026 (1)
|
A
|
R
|
P
|
S |
|
SAT |
9 |
|
▶ 19th European Chess Solving Championship 2026 (1)
|
A |
|
SAT |
13 |
|
▶ 34th Czech Chess Solving Championship 2026 (1)
|
A |
|
| SUN |
12 |
|
48th German Solving Championship 2026 (2)
|
A
|
R
|
P
|
S |
|
SUN |
10 |
|
▶ 19th European Chess Solving Championship 2026 (2)
|
A |
|
SUN |
14 |
|
▶ 34th Czech Chess Solving Championship 2026 (2)
|
A |
|
|
|
|
|
| SAT |
18 |
|
72th Slovakian Home Solving Tournament 2026
|
A
|
R
|
P
|
S |
|
SAT |
16 |
|
▶ 73rd Slovakian Home Solving Tournament 2026
|
A |
|
SAT |
20 |
|
▶ 74th Slovakian Home Solving Tournament 2026
|
A |
|
| SUN |
19 |
|
SUN |
17 |
|
SUN |
21 |
|
|
|
|
|
| WED |
22 |
|
Brazilian Chess Solving Championship 2026
|
A
|
R
|
P
|
S |
|
WED |
20 |
|
WED |
24 |
|
|
|
|
|
| SAT |
25 |
|
Open Solving Tournament Lithuania 2026
|
R
|
P
|
S |
|
47th Lithuanian Championship 2026 (1)
|
A
|
R
|
P
|
S |
|
SAT |
23 |
|
▶ 47th French Chess Solving Championship 2026
|
A |
|
SAT |
27 |
|
▶ 52nd Latvian Chess Solving Championship 2026
|
A |
|
| SUN |
26 |
|
47th Lithuanian Championship 2026 (2)
|
A
|
R
|
P
|
S |
|
24th Greek Chess Solving Championship 2026
|
A
|
R
|
P
|
S |
|
SUN |
24 |
|
▶ 2nd Chess Solving Championship of Achaia Region
|
A |
|
SUN |
28 |
|
|
|
|
|
|
|
SAT |
30 |
|
|
|
|
SUN |
31 |
|
|