# Tht Aain’t Right... #2

I already have another, probably very easy, for you all again!

Task: State the rule/s that you believe are being broken based on the position and/or what clues I have/you think are being given. You must also use this rule to complete the given game.

The Position:

What To Do: Find four ways for white to checkmate black in one move. It is white to move, of course.

• Your best puzzle so far IMO. Very well done! Apr 17, 2019 at 17:30
• Thanks! But why this one in particular? Apr 17, 2019 at 17:33
• 1. It's very clear and straightforward. 2. The correct answer doesn't use any sort of cheesy loopholes and there is only one correct answer. 3. The correct answer also relates to the title in a clever way that verifies the solution. Apr 17, 2019 at 17:40
• Not that your other puzzles have not done these things, but I feel that this one is exemplary of the above traits. Apr 17, 2019 at 17:40
• I agree. This is a very good puzzle Apr 18, 2019 at 3:08

I suspect the broken rule is

jumping over one's own pieces.

Allowing the checkmates

Qh5# or Qh4# or Rh3# or Rh2#

A hint pointing to this answer:

The title is "Tht Aain't right". Notice how the "a" has jumped over other letters in order to move to the right.

It might be

so

the h- and a-file are connected, and you can mate with Qb4-h4, Qb4-h2, Rc3-h3 and Rd2-h2.

This fits the clue in the title insofar that

the 'a'-file lies to the right of the 'h'-file.

• This would lead to at least 7 mates, not 4. Apr 17, 2019 at 15:40
• Did I really miss three additional mates? I still can't see them ... Apr 17, 2019 at 15:43
• There would be additional Q moves, wrapping around along diagonals as well as straight across ranks. (Meta: is it possible to put spoiler tags in comments?)
– CJM
Apr 17, 2019 at 19:05
• @ArnaudMortier Note that the Qa5 can't move to give check without allowing the black king to escape to the a file Apr 17, 2019 at 19:06
• Another one (not nearly as good as yours or the chosen answer) would be Queens and Kings are allowed to move cylindrically and jump over pieces Apr 18, 2019 at 3:15

Maybe:

Rule:
The towers move like bishops.

So:

Checkmates:
Qa5-f5 # or Qb4-e4 # or Qb4-b1 # or Pg5-g6 #

Because:

Hints:
The third letter of the first word goes to the second letter of the second word (diagonally). The first word begins with T(ower), and does not move to the 'right', but moves as 'aa', letter one plus letter one, letter two, (B)ishop.

• The towers are both on black tiles, which is also a reason your rule can't work out. Apr 17, 2019 at 20:39

I believe the rules being broken are that

the board is not described traditionally, with the ranks described with letters and the files described with numbers

and

the board was set up with a black square in the bottom right hand corner (1a in this game's notation) rather than white as it should be.