# Takeback and mate

BigDoggProblem
Posers and Puzzles 11 Dec '06 22:41
1. BigDoggProblem
Just...the Dogg
11 Dec '06 22:41

White takes back his last move and mates in 1 instead
a) diagram
b) move bNh3 to c3, then solve again
2. 12 Dec '06 09:372 edits
a) Retract Ne7xRc6, Play Nd5#
b) Retract Re5xNe8 (not Re5xBe8!), play Bg5#
3. 12 Dec '06 09:53
seems correct ðŸ˜‰
4. BigDoggProblem
Just...the Dogg
12 Dec '06 16:16
Originally posted by David113
a) Retract Ne7xRc6, Play Nd5#
b) Retract Re5xNe8 (not Re5xBe8!), play Bg5#
Correct. In b), Re5xBe8?? is illegal, because the Bishop never could have reached e8 in the first place (Pd7 and f7 have not moved).
5. 15 Dec '06 16:12
Originally posted by David113
a) Retract Ne7xRc6, Play Nd5#
b) Retract Re5xNe8 (not Re5xBe8!), play Bg5#
After the Bg5 move,
Bg5+? Nxg5
6. BigDoggProblem
Just...the Dogg
15 Dec '06 16:17
Originally posted by Alethia
After the Bg5 move,
Bg5+? Nxg5
But the N is on c3 in part b), not h3.
7. 15 Dec '06 16:25
Originally posted by BigDoggProblem
But the N is on c3 in part b), not h3.
Oh right. Thanks, I knew I had something worng, but I didn't do it on
a board.
ðŸ˜³
8. 17 Dec '06 14:32
Originally posted by David113
a) Retract Ne7xRc6, Play Nd5#
b) Retract Re5xNe8 (not Re5xBe8!), play Bg5#
b) can also be solved by taking back Rg8xe8 (a knight).
9. BigDoggProblem
Just...the Dogg
17 Dec '06 16:46
Originally posted by Gastel
b) can also be solved by taking back Rg8xe8 (a knight).
The R needs to stay on the e-file to guard Be4.