If 1. c7 Rd2 then 2. c8=Q Rc2+ does not force a draw, because wihte king will get to c3 square and no more checks. King+Queen vs King+Rook is a technical win here.
Hey Hey guys stop all these nex puzzle making!!! Mine wasnt solved yet!!!
Aziridine in your way black would have win.
Infact the king is in the 6 column and he would have reached the white pawn managing to capture it!!!
Go back to my puzzle!! buahah
Anyway I'm pretty sure I'm wrong about last puzzle because in my idea there are too many moves open to the white so I haven't calculated every variation, but it's just a bottom line:
4... d5
5 Qb5+ Nb6
6 dxc5 Bd7
Now white has 2 choices equally so I will analyze both the variations:
If 7 Qb3 Nd4
8 Qd3 Qa5+
9 c3 Nb3 ==> rock captured for the knight.
If 7 Qd3 Ne5
8 Qxd5 Qa5+
9 c3 Nxc5
10 Qxe5 Nd3+ ==> Queen captured for both the knights.
There are a lot of variations to consider but with a fast look all lead to an advantage for black.
Anyway i'm sceptical about my idea beacuse i feel there are some moves that may fit for this better, like the more classical 4... g5 or the other bottom line that is based on e5 (not as fourth move of course) in "charles de legal's style".
I think I see what you mean Trilussa - in the line I gave Black's king goes b6-a5-b4-b3 to support his pawn and draw. Clearly I gotta think about it more...
Black can force material gain in my puzzle. Against a normal move like 4...d5 White probably just plays 5.f3 and stands better.
Yes infact the problem of my bottom line was that in order to make it works, white must try to gain more pieces adavantage:P
Anyway if no one will solve my puzzle tonight i will post the solution:)
Oh anyway to 5 f3 black has c5 that would represent a big advantage for him.
But I'm sure that there is a much better move for white that I don't have the time to analyze:P
unknown that was already solved by me. the one that is still unsolved is mine (that sze has posted) and the last that you can see of Aziridine.
Even if according to sze's rules my puzzle should be solved before:P
My idea is probably to complicated for being the solution of a puzzle, but take a look to this and tell me if white can prevent someway my black playing...
4...Qb6 5.b3 exd4? 6.Qxe4 Qa5+ 7.c3 dxc3 8.b4! and White should win.
And as for your earlier suggestion, 4...d5 5.f3 c4 6.Qd1 and White will play Nc3 and e4. It's not clear to me whether Black is really better here, and he's definitely not winning material :)
