1. Rf5 f2+ 2. Kf1 Ng3+ 3. hxg3 Ka4! 4. Rxe5 stalemate is a very clever refutation of the Verführung. Now the bigger problem is, how to win?
Spoiler:
ah, 4. g4! awesome problem.
Correct!
Quote:
Originally Posted by Noir_Desir
study two:
Spoiler:
the end will probably be ...f1 = Q 2. Ng1+ K somewhere stalemate, now how to get there?
Spoiler:
ok i found a line, 1. Nd4 Ke1 2. Nf3+ Ke2 3. Nxc3+ Kxf3 4. Ne2 f1=Q+ 5. Ng1+ Not sure if there are any important sidelines though.
nice way to start the day. Keep'em coming!
Correct!
Quote:
Originally Posted by Noir_Desir
found some sidelines for 2 which are also beautiful:
Spoiler:
1. Nd4 Ke1 2. Nf3+ Kf1 3. Nxc3 and this time black is stalemated.
2. ...Kd1 3. Nxc3+ Kc2 4. Nd2! and whichever knight is taken, the other one forks the K and the pawn.
Also correct
An easy one for warmup:
and then a pretty hard one (at least it was for me, was SO happy when I finally solved it)
dunno, i have visions of 1. Kh4 and later Bf3+ Bxf3 stalemate but i cannot seem to make it work. And i'm not even sure that white is aiming for a draw here.
dunno if this qualifies as an etude but ran across this while doing tactics trainer
Took me a while to figure it out!
Spoiler:
Obv the main problem with this is that it seems so unnatural to let the other side queen so you try to find every possible line to prevent it.. While in reality, 1. Kg5 e5 (or 1.. f6+ transposes) 2. h5 f6+ 3. Kf6 e4 4. h6 e3 5. h7 e2 6. h8Q e8Q and now simply 7. Qd8+ and white will exchange queens on either e5, e6, e7 or g3. Black cannot hide from that (I think).
thx for the hint ykw, i think i've got it now (the hard one from your last post):
Spoiler:
1. Bf1! (needed the hint for that) Bf3 (otherwise Kh4 and the pawn falls) 2. Bg2! Rxg2 3. Rxg3! Rxg3+ 4. Kh4 and black cannot save the rook without allowing stalemate.
thx for the hint ykw, i think i've got it now (the hard one from your last post):
Spoiler:
1. Bf1! (needed the hint for that) Bf3 (otherwise Kh4 and the pawn falls) 2. Bg2! Rxg2 3. Rxg3! Rxg3+ 4. Kh4 and black cannot save the rook without allowing stalemate.
Correct!
Quote:
Originally Posted by wlrs
YKW: correct!
ty
Quote:
Originally Posted by Noir_Desir
first one of the new ones:
Spoiler:
1. Kf7 g3 2. Kxg6 g2 3. Kf6 g1=Q 4. Rd8 mate
second one:
Spoiler:
1. c7 Rc1 2. d6 exd6 3. Rh1 Rxc7 4. Rd1+ and Rc1+ and Rxc7.
second one correct!
First one also correct, but not the main line. What if
1. b7 Nb5 is mate, and 1. Kb7 Bd5+ 2. Kc8 looks at least unlikely to help white. Giving away the pawn on g7 at this point looks also silly, so the move to refute seems to be 1. a7.
A logical line is 1. a7 Ba6+ 2. b7 Nb5 3. g8=N+ Ke8 4. Nf6+. Have to look some more
1. Bd6 Qxd6 2. b8=Q Kxb8 (Qxb8 3. Rxh7+ Ka8 (Kb6 4. Rb7+=) 4. Bb7+ Ka7 5. Bc8+) 3. Bh3+!! and perpetual on the first two ranks, if the K goes to a6/b6/c6 we have Rh6=
1. b7 Nb5 is mate, and 1. Kb7 Bd5+ 2. Kc8 looks at least unlikely to help white. Giving away the pawn on g7 at this point looks also silly, so the move to refute seems to be 1. a7. A logical line is 1. a7 Ba6+ 2. b7 Nb5 3. g8=N+ Ke8 4. Nf6+. Have to look some more
Spoiler:
1. a7 Ba6+ 2. b7 Ne4 3. g8=N+ Ke8 4. Nf6+. And then 4 ... Nexf6 threatens mate in 2 White needs to use underpromotion/stalemate to avoid 5 a8(B) Seems like a number of possibilities after that to consider.