Originally posted by SwissGambitNotation error (the pawn is on b2, not a2). I thought selfmates (just like helpmates) were always Black to move first, but I have never actually tried any, so I guess I was wrong in the assumption.
1.Qb3!1...a1R/Q 2.Qd1+ R/Qxd1#
1...a1B 2.Qxd3+ Bxd3
1...a1N 2.Nd2+ Nxd2#
Yours?
Originally posted by SwissGambitWell done 🙂
1.Qb3!1...a1R/Q 2.Qd1+ R/Qxd1#
1...a1B 2.Qxd3+ Bxd3
1...a1N 2.Nd2+ Nxd2#
Yours?
And yes it's mine. Any suggestions for improvement? I could have spent more time over it, and with most puzzles I stick a few more moves in it so the key is more hidden, but I thought it wouldn't be worth it here.
Originally posted by doodinthemoodI have no credentials at all, but I like it as it is now.
Well done 🙂
And yes it's mine. Any suggestions for improvement? I could have spent more time over it, and with most puzzles I stick a few more moves in it so the key is more hidden, but I thought it wouldn't be worth it here.
Originally posted by doodinthemoodIt would be neat if there was a different mate for the Q promotion than R, but I don't see how you could motivate it.
Well done 🙂
And yes it's mine. Any suggestions for improvement? I could have spent more time over it, and with most puzzles I stick a few more moves in it so the key is more hidden, but I thought it wouldn't be worth it here.
1. a8=B!
1. ... Rxa6#
1. ... fxg1=Q
2. f8=Q!
[quote]2. ... Rxa6#
2. ... Qxh2 3. Nxh2 Rxa6#
2. ... Qh1 3. Rxh1 Rxa6#
2. ... Qxf1 3. b5+ Qxb5#
2. ... Qg2 3. Rxg2 Rxa6#
2. ... Qg3 3. Nxg3 Rxa6#
2. ... Qg4 3. Qxg4 Rxa6#
2. ... Qg5 3. hxg5 Rxa6#
2. ... Qg6 3. Nxg6 Rxa6#
2. ... Qg7 3. hxg7/Qxg7 [COOK'D] Rxa6#
2. ... Qg8 3. Qxg8 Rxa6#
2. ... Qf2 3. Rxf2 Rxa6#
2. ... Qe3 3. Nxe3 Rxa6#
2. ... Qd4 3. cxd4 Rxa6#
2. ... Qxc5+ 3. b5+ Qxb5#
1. ... fxg1=R
2. f8=R
2. ... Rxa6#
2. ... Rh1 3. Rxh1 Rxa6#
2. ... Rxf1 3. Rxf1 Rxa6#
2. ... Rg2 3. Rxg2 Rxa6#
2. ... Rg3 3. Nxg3 Rxa6#
2. ... Rg4 3. Qxg4 Rxa6#
2. ... Rg5 3. hxg5 Rxa6#
2. ... Rg6 3. Nxg6 Rxa6#
2. ... Rg7 3. hxg7 Rxa6#
2. ... Rg8 3. Rxg8 Rxa6#
1. ... fxg1=B
2. f8=B!
2. ... Rxa6#
2. ... Bxh2 3. Nxh2 Rxa6#
2. ... Bf2 3. Rxf2 Rxa6#
2. ... Be3 3. Nxe3 Rxa6#
2. ... Bd4 3. cxd4 Rxa6#
2. ... Bxc5 3. Bxc5 Rxa6#
1. ... fxg1=N
2. f8=N!
2. ... Rxa6#
2. ... Ne2 3. Rxe2 Rxa6#
2. ... Nf3 3. Qxf3 Rxa6#
2. ... Nxh3 3. Rxh3 Rxa6#
[/quote]
Originally posted by doodinthemood1. ... fxg1=R 2. f8=Q? (I thought that was possible too) but: 2. ... Rxf1! 3. Qfxf1 and now 3. ... Rxa6+ is no mate because a6 is covered by the wQf1.
I can understand why knight needs to be met with knight in that one, but why can the other three not be met by queen?
1. ... fxg1=B 2. f8=Q Bxc5 and now 3. bxc5 Rxa6+ is no mate.
1. ... fxg1=Q 2. f8=Q is correct.
Originally posted by heinzkatIf there are two different 2nd moves [or later] that work for White, those are called 'duals', not cooks.
[b]1. a8=B!1. ... Rxa6#
1. ... fxg1=Q
2. f8=Q!
[quote]2. ... Rxa6#
2. ... Qxh2 3. Nxh2 Rxa6#
2. ... Qh1 3. Rxh1 Rxa6#
2. ... Qxf1 3. b5+ Qxb5#
2. ... Qg2 3. Rxg2 Rxa6#
2. ... Qg3 3. Nxg3 Rxa6#
2. ... Qg4 3. Qxg4 Rxa6#
2. ... Qg5 3. hxg5 Rxa6#
2. ... Qg6 3. Nxg6 Rxa6#
2. ... Qg7 3. hxg7/Qxg7 [COOK'D] Rxa6#
2. ... Qg8 3. Qxg8 ...[text shortened]... ... Ne2 3. Rxe2 Rxa6#
2. ... Nf3 3. Qxf3 Rxa6#
2. ... Nxh3 3. Rxh3 Rxa6#
[/quote][/b]
In a task of this magnitude, a minor dual or two is forgivable [say, two third moves that work].
Originally posted by doodinthemood1...fg1R 2.f8Q? Rxf1! 3.Qxf1 Rxa6+ is not mate because the Q guards a6.
I can understand why knight needs to be met with knight in that one, but why can the other three not be met by queen?
1...fg1B 2.f8Q? Bxc5! 3.bxc5 opens up b4 so 3...Rxa6+ is again not mate.
And the Queen is of course met by Queen.
Edit: beaten to the punch.
Originally posted by SwissGambitI knew it it, sorry, but I was confused by the 'cook' I had found after 1. ... fxg1=R with 2. f8=Q? (indeed I found out that 2. ... Rxf1 3. Qfxf1 Rxa6 is no mate, after having posted it already, shame on me). I was a bit too enthusiastic in calling all extra solutions 'cooks'.
If there are two different 2nd moves [or later] that work for White, those are called 'duals', not cooks.
In a task of this magnitude, a minor dual or two is forgivable [say, two third moves that work].