ok.

3 down: Bxc5?

4 down: He doesn't have to take the bishop first and what about after kxc3?

uhh after kxc3 you are going to get skewered so hard you will cry and just tip over the king

4 puzzle down Be1+ Bc3 Bxc3 Kxc5 Qa3+ Q off

Kxc3 Qa3#

good puzzles

liked them

I like 4 down and what are you jokko talking about?

I may be missing something painstakingly obvious here, but for the fourth one down surely the pawn should be promoted to a queen rather than a bishop? Then you have an immediate checkmate. What can a bishop do that a queen can'r?

Sorry I meant the second one down.

first one is good

amateur1024, if he queens, there would be a stalemate...the king can't move and the knight can't move as it would be blocking check from the new queen

Harry, Bxc5 is better but only delays the mate.

Qxc5 would delay it longest

4th down. any reason not to play Be1?

Wow that second one was tricky for me 

happy you guys like my puzzles- oh i got them from a book

nice

number 2 has several mating patterns.  We agree through the third move but then:

4 Bb5 Kb8

5 Ba6 Ka8

6Bb7+ Kb8

7 Nc6 or d7 mate lops one move off and

4Kc7 Ka7

5Bc8 Ka8

6Bb7+ Ka7

7Nc6 mate is another pattern 1 move shorter.  Other 7s might exist.  If you can do better (ie 6), I will admit you are my superior.  Typos above do not count.