Black to move. How should Black proceed? No computer please.
8/7p/5kp1/4p3/p3rPRP/3K2P1/2P5/8 b – – 0 1
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Black to move. How should Black proceed? No computer please.
8/7p/5kp1/4p3/p3rPRP/3K2P1/2P5/8 b – – 0 1
..Re3. Black does a rook sac enabling the black pawn on the right make its way to Q promotion.
SK
That’s one winning strategy. The other one would involve sacrificing the h pawn to trap the white Rook.
Mark
Re3 loses, anon 11:40 and 11:49.
1…Re3+
2.Kxe3 a3
3. fxe5+ Kxe5
4. Ra4 and game over.
1…Re3?
2.Kxe3 a3
3.fxe5+ and 4.Ra4
… and White wins.
Mark, I don’t see how you propose to win either. Could you provide a concrete line?
1. … Re3+ loses after
2. Kxe3 a3 3. fe+ Kxe5
4. Ra4
Other move 2s also lose.
1. … Re3+
2. Kxe3 ef
3. gf a3
4. Rg1
This is one of the toughest one so far … I think I found one winning line though:
1. … Rd4+
2. Kc3 e4!
3. Kxd4 h6! (to prevent Rg5)
Now if white plays 4. Kxe4 then black plays a3 and the rook pawn cannot be stopped.
If white plays 4. Kc3 instead then
black plays 4. … Kf5, trapping
the white rook … white now has to
worry about both the e4 and a4 pawns.
will the blk king needs to hide from check so the only move i see is Kg7 first, then wht king to go to the a pawn kc3 then maybe push the h pawn to h5 to attack the rook that all i can come up with in a short time.
1. … Rd4+
2. Kc3 e4!
3. Kxd4 h6! (to prevent Rg5)
Now if white plays 4. Kxe4 then black plays a3 and the rook pawn cannot be stopped.
Oh, but it can — 5.h5 and the rook breaks free.
If white plays 4. Kc3 instead then black plays 4. … Kf5, trapping the white rook … white now has to worry about both the e4 and a4 pawns.
As if one win weren’t enough, 5.h5 wins for White in this line, too.
If white plays h5 then black simply counters with g5!. This traps the white rook … it can’t go to either h4 or f4 squares.
So do you have any solution yourself to the puzzle?
Hm, g5 may not necessarily win for black, e.g.,
1. … Rd4+
2. Kc3 e4!
3. Kxd4 h6
4. h5 g5
5. fxg5 hxg5
6. h6 and white’s h pawn had to be stopped.
Back to analysis …
How about ..a3? Black scarcificing Rook for the promotion. If white king itself takes the rook then white movement is restricted by king itself.
If White king continues to move without taking the rook along the h8-a1 diagonal at some point black rook can move to a4 to protect the pawn.
1…a3
2.fxe+ Rxe5
3.Ra4
h6 looks good.
I think it has to be a King move first for black. Anon @1:42 has the right idea although I would probably play 1. … Kf7 for black instead and if white plays 2. Kxe4 then 2. … a3 wins for black.
White can not take the black rook on the e4 square as doing so blocks the 4th rank for his rook — thereby preventing white to threaten the black a4 pawn.
So the play may continue this way:
1. … Kf7
2. h5 a3
3. Rh4 Re1
4. Kd2 Rg1 wins for black (4. fxe5 a2 wins for black as well)
Uh, my bad. Black should really play Kg7 and not Kf7 first. Kf7 does not prevent the Rh7+ if they exchange pawns on g6 after white plays h5. So the play should go like this:
1. … Kg7
2. h5 a3
3. Rh4 Re1
4. hxg6 hxg6 (white can’t play Rh7+ )
4. Kd2 Rg1 wins for black (4. fxe5 a2 wins for black as well)
Kf7 doesn’t work
1…Kf7
2.Kxe4 a3
3.fxe a2
4.Rf4+
the black king must be on g7 otherwise white can use the tempo that he need to catch the pawn.
1…Ke7
2.Kxe4 a3
3.Rg5!a2
4.Rxe5+
and white wins
The king must be on g7 because then white can’t use any check to get the tempo that he need to catch the pawn
Yup. You’re right and I did correct myself above.
That was a good puzzle, Susan. Thanks!
Black does in fact win with 1…Kg7, but White has a couple of tries:
A) 2.Kxe4 fxe5
3.fxe5 a2
4.e6 a1=Q
… with a won Q vs. R ending.
B) 2.c3
That’s a little tougher to beat, but Black still wins.
i like the idea with Re3+ followed by e4. i dont think white can afford to take on e3 but not sure.
i like the idea with Re3+ followed by e4. i dont think white can afford to take on e3 but not sure.
See posts 3, 4, and 5 in this thread.
i like the idea with Re3+ followed by e4. i dont think white can afford to take on e3 but not sure.
See posts 3, 4, and 5 in this thread.
Friday, April 4, 2008 7:39:00 PM CDT
none of these posts have my idea with 2..e4 in them. but thanks for your useless post
1…Re3+??
2.Kxe3 e4??
3.Rg5
You’re welcome.
1st) .. Ke6
Now, the “a” pawn is going to promotion; possible lines which comes to my mind:
2a) Kxe4 a3 and neither the rook nor the king can stop the pawn
2b) f5+ gxf5 and the black rook is protected by the pawn… now
3b) Rg8 Rg4
4b) Rf8+ Ke7
Ok, is not so obvious, but White obtains a skewer on the rank “3” or a pawn endgame with two passed pawns (won) or keeps the “a” pawn and “ef” isle of passed pawns.