Jasik, Andrzej
UAPA 11th, 2020
2nd Honourable Mention
win
FEN: 1b6/1P6/1NP3R1/8/4Pp2/8/ppp2K2/1qk5

Blog about chess problems
Below I present the original problems from the Polski Związek Szachowy 2021 Tourney, which due to technical reasons could not be posted on the PZSzach website.
A square in the black Kings field is guarded by a white linemover and blocked by a black piece. A
threat closes the line of guard and Black in defence unblocks that square.
Kovacević, Marjan
Pat a Mat, 2008
1st Prize
FIDE Album 2007-09
mate in 2 moves
FEN: 4Q3/5pp1/3P1P2/pP1kP2N/RP1bN2R/2p1p2p/8/4KBBn
A square in the black Kings field is guarded by two white linemovers. A threat closes one of these lines and Black defends by closing another. Known also as Barulin defence.
Banaszek, Marcin
Jubileusz Polska-40, 1986
1st Prize
FIDE Album 1986-88
mate in 2 moves
FEN: 7B/K3N1qr/1p1P4/1P1B2R1/3k1pN1/bP1r2p1/2Qnn3/4R3