White to move and checkmate in 5.
Puzzle by Zakhodiakin
8/8/8/p7/8/8/4RKR1/kb6 w – – 0 1
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Checkmate in 5
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White to move and checkmate in 5.
Puzzle by Zakhodiakin
8/8/8/p7/8/8/4RKR1/kb6 w – – 0 1
A very pretty problem in which it is the second move that is the tough one to spot.
1-Rg1 a4 2-Rc2 a3 3-Ke2 a2 4-kd1 Bxc2 5-Kxc2 # .
Rg1 a4 2.Rc2 a3 3.ke2 a2 4.Kd1Bc2 5.Kc2#
Nice!
1.Rg1 a4 2.Rc2 a3 3.Ke2 a2 4.Kd1! Bxc2 5.Kxc2
The white king must in all variations walk f2-e1-d1-c1.
The rest is done by the leftmost rook.
If black on 2nd plays Kc1, then white plays Rb2+ to force him back to a1.
In other lines white employes Rb2 as 4th move, followed by either R(x)a2# or R(x)b1#.
Note that if a-pawn has walked to a3, white must and can avoid the Rb2 move.
Another R move in rank 2 is then zugzwang, B must leave b1 and then there is Ra2#.
Hmmmm. This took forever.
1. Rg1 pinning the bishop and leaving only …a4
2. Rc2!! a3 is the only move
3. Ke2 a2
now 4. Kd2 leads to stalemate so
4. Kd1! Bxc2 is the only legal move
5. Kxd2# discovered checkmate
One possible progression
1. Rg1
The bishop is now pinned, only the a pawn can move.
1 …, a4
2 Ke3, a3
3 Kd2, a2
Now, the black pieces have no moves. This stalemate can be temporarily released by unpinning the Bishop.
4 Kc1
The Bishop can move to any square on the b1-h7 diagonal.
If 4 …. Bc1 then 5 Kxc1 discovered check and mate
If 4 …..Bd3 (or any other) then 5 Rc1 …. upon the next black move there is 6. Kxc1 or Kd2 Discovered check mate
Very nice indeed:
1.Rg1 a4
2.Rc2! a3
3.Ke2 a2
4.Kd1! Bxc2
5.Kxc2#