White to move, mate in 2.

Just 2 moves, can't be too difficult. 😉

number 1:

Originally posted by crazyblue
Just 2 moves, can't be too difficult. 😉

number 1:
[fen]8/5p2/5Q2/8/8/3K4/8/1kN5 w - - 0 1[/fen]

number 2:
[fen]n6k/7b/Q4Kp1/8/8/8/8/8 w - - 0 1[/fen]

number 3:
[fen]8/8/8/3K4/8/5nP1/5Q1b/5N1k w - - 0 1[/fen]

number 4:
[fen]2nB4/r3q3/N3pN2/4kp2/3R1R2/7B/4b2K/6Q1 w - - 0 1[/fen]

number 5:
[fen]7Q/6p1/6kN/4P3/5KP1/8/8/8 w - - 0 1[/fen]
...[text shortened]... w - - 0 1[/fen]

number 7:
[fen]1K3B2/4n3/4P3/1Pk1N2R/P1B2nR1/3P4/1P3P1Q/2N5 w - - 0 1[/fen]

Reveal Hidden Content

Originally posted by SwissGambit
number 1:
[...]

Easy enough. I'll let someone else do the next one. 🙂

Number 2:
Reveal Hidden Content

Number 3 Reveal Hidden Content

Originally posted by tomtom232
Number 3 [hidden]1.Kc6! zugzwang and the only square to allow it all others are covered, allow black to check or in one case lets black pin the queen which is the piece needed to deliver mate![/hidden]

Reveal Hidden Content

number 5: Reveal Hidden Content

Good, all correct so far. I think tomtom meant Kd6 as well, as the explanation to it was perfectly fine.
Now 4, 6 and 7 missing. Number 6 has a debatable feature. Take that as a hint. 😉

number 6 Reveal Hidden Content

Originally posted by crazyblue
Good, all correct so far. I think tomtom meant Kd6 as well, as the explanation to it was perfectly fine.
Now 4, 6 and 7 missing. Number 6 has a debatable feature. Take that as a hint. 😉

Reveal Hidden Content

7: Reveal Hidden Content

Originally posted by talzamir
7: [hidden]Nd7+ followed by mate by bishop or rook[/hidden]

Reveal Hidden Content

Reveal Hidden Content

Originally posted by tomtom232
[hidden] 1.Nc6+ Kb6 2.a5[/hidden]

Yeah, for 7, we can reject 1.Nc6+ without considering black defenses because it is an utterly horrible key that no self-respecting composer would ever use [check + takes 2 flights 😞]

Let's try Reveal Hidden Content

4 is hard to find. I gave up on that one. I can see why no one has yet solved it.