1 Rxf7+ wins. 1 … Rxf7 (else mate with the Queen next move) 2 Rg6+ (I initially looked at this move first, but it only mates if black takes the rook, so then I saw that it’s way stronger after the Rxf7 sack first.) 2 … Kf8 (again, the only move, as if Kh8, Qe8+ or Kh7, RxB+ with double check and mate to follow) 3 Rg8+ Kxg8 4 Qe8+ K-any 5 Qxf7+ and mate next move on either g6 or g8.
Wanting to put the queen at g6 made it easy to find the first move, though one need never actually put the queen there until the very end, and only if black puts the king on h6. Getting rid of the f-pawn looks visually imperative:
1. Rf7 Rf7 (mate otherwise)
Here, I wasted time with Qg6, but this draws at best:
2. Rg6 Kf8 (Kh8 or Kh7 below)
And here was the hardest move to find:
3. Rg8! Kg8
Here, I wasted time with Qg6+ once again, but that seems to lose, however, white has an even more obvious move that is a clear mate:
4. Qe8 Kh7 (Kg7 leads to mate too) 5. Qf7 Kh6 (Kh8 6.Qg8#) 6. Qg6# Finally getting Qg6 in, but not when I was looking to.
Back at move two, black is mated more quickly with either Kh7 or Kh8:
Mate in 2 and 4: 1.Rxf7 Kxf7 2.Qg6 mate and 1.Rxf7 Rxf7 2.Qg6+ Kh8 3.Re8+ Rf8 4.Rxf8 mate
1.Rf7-Rf7
2.Rg6-Kf8
3.Rg8-Kg8
4.Qe8-Kg7
5.Qf7-Kh8
6.Qg8
1.Rxf7+ Rxf7 (1..Kxf7 2.Qg6# 1..Kh8 or
1…Kg8 Qh7#)
2. Rg6+ Kf8 (if 2…Kh7 then 3.Rh6+!! mates. if 2..Kh8 3.Qe8+ mates) 3.Rg8+! Kxg8 4.Qe8+ Kg7 5.Qxf7+ Kh6 (Kh8 Qg8#) 6.Qg6#
1.Rxf7+ Kxf7
2.Rg6+ Kf8
3.Rg8+! Kxg8
4.Qe8+ Kg
5.Qxf7+ followed by 6.Qg6# or Qg8#
Rg6+ fxg6
Qxg6+ Kh8
Rh8#
Quorthon
The main line seems to be
1. Rxf7+ Rxf7
if Kxf7 then Qg6 leads to mate quickly.
2. Rg6+ Kf8 or Kh8
3. Rg8+ Kxg8
4. Qe8+ K moves
5. Qxf7 & mate should follow
1)Tf7+,Tf7
2)Tg6+,Rf8 (2…,Rh7 3)Th6++)
3)Tg8+,Rg8
4)De8+,R…
5)Df7+
1 Rxf7+ wins.
1 … Rxf7 (else mate with the Queen next move)
2 Rg6+ (I initially looked at this move first, but it only mates if black takes the rook, so then I saw that it’s way stronger after the Rxf7 sack first.)
2 … Kf8 (again, the only move, as if Kh8, Qe8+ or Kh7, RxB+ with double check and mate to follow)
3 Rg8+ Kxg8
4 Qe8+ K-any
5 Qxf7+ and mate next move on either g6 or g8.
This is cute —
R-g6+ Pxg6
Qxg6+ K-h8
Rxf8++
Ooh, cute…
1. Rxf7+ Rxf7 (1. … Kxf7 2. Qg6#; 1. … Kg8/Kh8/Kh6 2. Qh7#)
2. Rg6+
2. … Kh8
2. … Kf8
3. Rg8+ Kxg8
4. Qe8+ Kg7/Kh7
5. Qxf7+ Kh8 (5. … Kh6 6. Qg6#)
6. Qg8#
2. … Kh7
3. Rg8+ Kxg8 transposes (3. … Kh6 4. Qg6#)
2. … Kh8
3. Qe8+ Rf8 (3. … Kh7 4. Qg8#)
4. Qxf8+ Kh7
5. Qg8#
Wanting to put the queen at g6 made it easy to find the first move, though one need never actually put the queen there until the very end, and only if black puts the king on h6. Getting rid of the f-pawn looks visually imperative:
1. Rf7 Rf7 (mate otherwise)
Here, I wasted time with Qg6, but this draws at best:
2. Rg6 Kf8 (Kh8 or Kh7 below)
And here was the hardest move to find:
3. Rg8! Kg8
Here, I wasted time with Qg6+ once again, but that seems to lose, however, white has an even more obvious move that is a clear mate:
4. Qe8 Kh7 (Kg7 leads to mate too)
5. Qf7 Kh6 (Kh8 6.Qg8#)
6. Qg6# Finally getting Qg6 in, but not when I was looking to.
Back at move two, black is mated more quickly with either Kh7 or Kh8:
2. …..Kh7
3. Rh6 Kg7 (Kh6 4.Qg6#; Kg8 4.Qe8)
4. Qg6 Kf8
5. Qf7# Or
2. …..Kh8
3. Qe8 Rf8 (Kh7 4.Qg8#)
4. Rg8 Rg8 (Kh7 5.Qg6#)
5. Qg8#
1. Rxf7+ (a) RxR
2. Qg6+ Kh8
3. Re8+ Rf8
4. RxR#
1. … (b) KxR
2. Qg6#
1. … (c) Kg8
2. Qg6+ Kh8
3. Rh7#
1. … (d) Kh8
2. Qe5+ Bf6
3. QxB+ Kg8
4. Qg7#
Mark