Weekly Puzzles 1

In this new series of posts, which will be released every Monday, I will present you puzzles which I came accros and found very interesting. My aim is to give a good mix of puzzles and maybe add also some different types (for example blindfold puzzles) in the future. Any feedback about this would be appreciated.

This week's post contains 6 puzzles which you can find below or in Lichess study.

Solutions

1...Qh6!
Black forces the white bishop to g1 to take that square away from the king
2.Bg1 Qh3
This shows why the bishop needs to be on g1
3.Qf2 (3.gxh3 g2#) 3...Qxh2+
White's bishop is overloaded. Taking on f2 is bad: 3...gxf2 4.gxh3 fxg1=Q+ 5.Kxg1 black has regained the piece, but the endgame is lost.
4.Bxh2 gxf2
And black wins

2.
1...b3!
Black takes the b4-square away from black's dark squared bishop and now it is out of squares.
2.axb3 Rd1 3.Bb5 Na7!
White will lose a piece.

3.
White is a rook up, but black has a dangerous attack, so white needs to find a way to survive.
1.Rd2! Rxd2 2.d4!
Blocking the diagonal of the black bishop. If black moves their bishop, the attack is over and the position is roughly equal. However, black has one more try which had to be seen.
2...Qe2?! 3.Bc1! Rxa2 4.dxe5
Black doesn't have a mate and so white is winning due to the extra piece.

4.
There are a couple of winning moves, but only one forced mate
1.Rxb7+! Kxb7 2.Rxc7+! Kxc7 3.Qxa7+ Kc8 4.d6! This threatens mate on c7 4...Rxd6 5.Nxd6#

5.
White's pieces are near the black king, but how can they take advantage of this?
1.Nf6! gxf6
1...Bxd3 defends against the mate on h7, but loses material to 2.Nxd7
2.Bf5!!
Threatening mate on h7 and clearing the h-file for the rook
2...exf5 3.Rh1 h6 4.Qxh6+ Kg8 5.Qh7#

6.
White is a piece up, but it looks like they will lose their knight on e2. However, they can save their piece
1.f7+ Kxf7 2.O-O
And white remains a piece up