# Mate in 1

Xiangqi problem.  Blue to move and mate in one.  (Just thought I'd try to slip one by.  Don't ban me.  I won't do it again.)

Looks to me like there are two solutions... (western notation)

1. Ca1#

1. Cb1#

Or is there something wrong with that?

Nytik wrote:

Looks to me like there are two solutions... (western notation)

1. Ca1#

1. Cb1#

Or is there something wrong with that?

No, the cannon needs a screen to attack.

P5=6

Great, another 象棋 fan! Sorry about pics quality, I took them with my phone (motorola v980). It is Xiangqi board and pieces I made for myself (now, I only have to find someone to play it with :'( ).

easy! i play chinese chess myself! move the blue chariot down to put the red king in checkmate! lololz so easy!

But, then red cannon on the second line can just take the chariot, no?

Tiger-13 wrote:

easy! i play chinese chess myself! move the blue chariot down to put the red king in checkmate! lololz so easy!

No, the red cannon（炮）on H1 can then take the chariot（車）.

I think the solution is soldier（卒）on E2 to E1  (red General cannot take soldier as it would leave the two generals in alignment, which isn't allowed).

The cannon can take the soldier though.

Sahist4 is correct (and he used the traditional Chinese notation of the move).  In chess notation it would be e2-f2 or just f2.  After the soldier (pawn) checks, the king cannot move to e1 because of the interesting rule in xiangqi that kings may not occupy the same file if there are no other intervening pieces.  It cannot move to g1 because it cannot leave the castle.  It cannot capture the soldier because it is protected by the rook.

Rd1 is incorrect because of the red cannon capture that Sahist4 indicated.

As Gerstav pointed out, e2-e1 also is incorrect because the red cannon can capture the soldier on e1.