White to move and checkmate in 5.
Puzzle by Kovalenko
6R1/6P1/8/8/8/K7/6P1/kr6 w – – 0 1
Checkmate in 5
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White to move and checkmate in 5.
Puzzle by Kovalenko
6R1/6P1/8/8/8/K7/6P1/kr6 w – – 0 1
1. Ra8…
A)
1. … Rb8
2. g8Q
a)
2. … Rxg8
3. Rxg8 Kb1
4. Rc8 Ka1
5. Rc1#
b)
2. … Kb1
3. Qa2+ Kc1
4. Rxb8 Kd1
5. Rb1#
c)
2. … Rb2
3. Qh8 Kb1
4. Qxb2#
if 1.Ra8 then
1. … Re1
2. g8Q Re3+
3. Kb4+ Kb1 and don’t see a mate in 2 here
1. Re8
A)
1. … R leaves 1st rank (b2; b4-b8)
2. Re8+ Rb1
3. g8Q and mate in next move Qa2#
B)
1. … Rb3+
2. Kxb3 Bb1
3. Re1#
C)
1. … Rc1
2. g8Q…
a)
2. … Rc2
3. Re1+ and mate next move Qa2#
b)
2.. … Kb1
3. Qa2#
D)
1. …. Re1
2. Rxe1#
E)
1. …Rd1
2. g8Q Kb1 (if Rook leaves 1st rank then 3. Re8+)
3. Qa2+ Kc1
4. Rc8#
F)
1. …Rf1
2. g8Q Kb1
3. Rc8 Rf2
4. Qb3+ Ka1
5. Rc1# or Qd1#
G)
1. …Rg1 or Rh1
2. g8Q Rc8
and mate next move Qa2#
nope, I’m afraid
Ad. E)
black can play 1… Rd1 2.g8Q Rd3+ 3.Qb3 Re3!! – a nice stalemate trick! I don’t think there is a mate in 5 really. This must be some mistake…
So maybe
1. Rc8
1. …. Rd1 or Re1 or Rf1 or Rh1
2. Rc3 to prevent check
Then black Rook cant leave 1st rank because of 3. Rc1#
but
2. … Rd3
it not so easy 😉
1 Rc8
If Black root leaves the first rank,
then 2 Rc1+ Rb1 3 g=Q and 4 Qa2x
Otherwise
1.. Re1 2 g=D Re3+ 3 Qb3 Rc3 4 Qxc3+
and 5 Qb2X
Olimat
Olimat
What if…
3. …Rxb3+
4. Kxb3 Kb1
and there’s no mate in next move
Right!!
Now I got it. It is 1 Rf8 Re1
2 g=Q Re3+ 3 Qb3 Rf3
4 Qxf3 Kb1 5 Qd1x
Olimat
Now it seems to be correct. Well done!
1. Rf8?, Rh1(!)
2. g8Q, Kb1 and I do not find mate!?
(not 1. -, Re1? 2. g8Q, Kb1 3. Qa2+, Kc1 4. Qb2+, Kd1 5. Rd8#)
(similar: 1. Rh8?, Rf1)
Your line against 1. Ra8 does not make sense in my eyes.
“black can play 1… Rd1 2.g8Q Rd3+ 3.Qb3 Re3!!”
Where ever the rook goes (Qxe3 is no stalemate, probably you want to move the rook to d3 instead) do not forget that Kb4 is mate.
After 1. Ra8, Rb2 seems to be a defense as the king may escape via b1. That shows that the white rook must keep access to the first rank (remaining
This stalemate trick seems to appear after 1. Rd8?, Re1! 2. g8Q 3. Qb3, Rd3!!
At the moment I do not see a difference between 1. Rc8 and 1. Re8 but I am sure only one of these may solve it.
What did I oversee?
Best wishes from Germany
Jochen
Jochen you missed that :
1. Rf8!! Rh1
2. g8Q, Kb1
3.Rc8! Rh3+
4.gxh3 Ka1
5.Qa2# or 5.Rc1#
Pharaoh
Hello Pharao,
okay…. but can you give black defenses against Rc8 and Re8? Thanks. 🙂
Jochen
Jochen…
1. Re8? Rd1
2. g8Q, Rd3
3.Qb3 Re3!
4.Qxe3 Kb1 and is not mate in 5.
Note here that if the queen was on f3 she would give mate on d1 and that is the point of 1.Rf8! When black interpolates his rook opposite the white rook that should take place on f3 thus by taking with the queen to follow mate on d1.
Now,
1.Rc8? Rd1 again
2.g8Q Rd3+
3.Qb3 RxQ
4.Kxb3 Kb1 and is not mate in 5.
Pharaoh
Thank you, Pharaoh!
Best wishes from Germany
Jochen
1. Rc8 Rf1
2. Rc3 Kb1
3. Qg8 Rf2
4. Qb8+ Rb2
5. Qb2#