๐Ÿ’ซ Double Grandmaster in otb chess and chess solving, ๐Ÿงฉ 6 times World Chess Solving Champion โ™Ÿ๏ธ 2 times Polish Chess Champion โ™Ÿ๏ธOne Titled Tuesday's win

Joined March 2012
In my collection of puzzles of the week it deserves the spot! White to play! ( Puzzle of the week #42/2026)
Why Black's ...Nxf4 was a mistake?
5
1
14
584
Solution: It works so fluently on the phone
Puzzle of the week #41/2026: @Wfcc_Chess updated the layout of their website, which looks much better. They also offer daily puzzles. So here is one from today. White to play and mate in 2 moves, gl!
2
163
Puzzle of the week #41/2026: @Wfcc_Chess updated the layout of their website, which looks much better. They also offer daily puzzles. So here is one from today. White to play and mate in 2 moves, gl!
1
1
1
329
wfcc.ch/ link to the website
120
Solution: the longest move 1.Bh1!
(Puzzle of the week #40/2026) : We stay with castling theme. White to mate in 4 moves, good luck!
1
199
and after 1.....Na7 2.Qc6 dxc6 the key move for White is to castle! 3.0-0-0!
1
114
where 3....0-0 4.Rg1# seals the deal
49
When you hit a chess number at 5 minutes Puzzle Rush
2
180
(Puzzle of the week #40/2026) : We stay with castling theme. White to mate in 4 moves, good luck!
3
2
1
12
1,020
Solution: Because Black can castle, bK and Rh8 couldnt move. So the last move had to be g7-g5. So the solution is 1.hxg6 e.p. (P.S.) If Black couldnt castle then 1.Ke6 is the way
Correction, I think it's important: Black can castle
187
Correction, I think it's important: Black can castle
Puzzle of the week (#39/2026): Simple mate in 2 moves , good luck! (found in Warsaw)
3
1
8
918
Puzzle of the week (#39/2026): Simple mate in 2 moves , good luck! (found in Warsaw)
2
1
3
920
Solution: both queens using two portal square
Puzzle of the week (#38/2026): from Hopper Magazine. Reach this position after both sides make 8 moves, good luck!
1
639
Best game of the Olympiad? #chess
1
1
6
316
Puzzle of the week (#38/2026): from Hopper Magazine. Reach this position after both sides make 8 moves, good luck!
2
2
1
7
899
Solution: We play 1.... Kd3! Since there is a threat of Rf1#, White has to play 2.Rd6+ and now the magic part 2....Nd5!!
(Puzzle of the week #37/2026). In the actual game yesterday (in small rapid event which I won) I had a rook on f3, but in analysis I moved it to f5. Black to move! (BONUS: What's the difference with the rook on f3?)
1
3
348
With rook on f3 White has the Ke2 resource, which would save White!
1
2
52
But the game ended by 2.Bxe3 Rf1# ๐Ÿคฆโ€โ™‚๏ธ
2
71