White to move. How should White proceed?
1k2n2r/1pnRB3/p1p2p2/4p1p1/P7/1N3P2/4P2q/2Q2K2 w – – 0 1
Chess Daily News from Susan Polgar
Finding the right continuation
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Td8+,Ra7,Ac5+b6,Axb6+,Rb7 (Rxb6,Dc5+,Rb7,Ca5++) Ca5+,Rxb6,Tb8+,Rxa5 (Ra7,Cc6++) Dc3+,Rxa4,Db4++
1.Rd8+, Qc5+, Qxb6+, Bc5+ and Na5 #
This is easy to find.
1. Rd8+ (the only move) Ka7 (the only move)
2. Qc5+ b6 (the only move)
3. Qxb6+ Kxb6 (the only move)
4. Bc5+ Kb7 (the only move)
5. Na5+
1 Rd8+, Ka7; 2 Bc5+, b6; 3 Bxb6+ Kb7 (if …Kxb6; 4 Qc5+, Kb7; 5 Na5++); 4 Na5+, Kxb6; 5 Rb8+, Kxa5 (if …Ka7; Nc5++) 6 Qc3+, Kxa4; 7 Qb4++.
R chk, B chk
han
1.Rd8+ Ka7(forced)
2.Bc5+ b6 (forced)
3.Bxb6+
a)
3…Kxb6
4.Qc5+ Kb7 (forced)
5.Na5#
b)
3…Kb7
4.Na5+ Kxb6 (forced)
5.Rb8+! Kxa5 (if Ka7 6.Nxc6#)
6.Qc6+!
(Qc5+ is met by Nb5)
6…Kxa4 (forced)
7.Qb4#
rd8 ka7
qc5 b6
qxb6 win
1. Rd8+ Ka7 2. Bc5+ b6 3. Bxb6+ Kb7 (3..Kxb6 4. Qc5+ Kb7 5. Na5#) 4. Na5+ Kxb6 5. Rb8+ Kxa5 (5..Ka7 6. Nxc6#) 6. Qc3+ Kxa4 7. Qb4#
1. Rd8+ Ka7 2. Bc5+ b6 3. Bxb6+ Kb7 (3. … Kxb6 4. Qc5+ Kb7 5. Na5#) 4. Nc5+ Kxb6 5. Nd7+
5. … Kb7 6. Rb8+ Ka7 7. Qc5#
5. … Ka7 6. Qc5+ Kb7 7. Rb8#
5. … Ka5 6. Qc3+ Kxa4 7. Nc5+ Kb5 8. Rb8#
Thought of this first:
1. Rd8+ Ka7
2. Bc5+ b6
3. Bxb6+ Kb7 (if 3…. Kxb6 4. Qc5+ Kb7 5. Na5#)
4. Na5+ Kxb6
5. Rb8+ Kxa5 (if 5…. Ka7 6. Nc6#)
6. Qc3+ Kxa4
7. Qb4#
But it works better to play the Queen to c5 on the 2nd move rather than the Bishop, since Black does not have the option of playing Kb7 on the 3rd move.
1. Rd8+ Ka7
2. Qc5+ b6
3. Qxb6+ Kxb6
4. Bc5+ Kb7
5. Na5#
1. Rd8+ Ka7
2. Bc5+ b6
3. Bxb6+ Kxb6
4. Qc5+ Kb7
5. Na5#
or
3. … Kb7
4. Na6+ Kxb6
5. Rb8+ Kxa6
6. Qc5+ Kxa4
7. qB4#
or
3. … Kb7
4. Na6+ Kxb6
5. Rb8+ Ka7
6. Rb7+ Ka8
7. Qxc6#
William
1. Rd8 Ka7 2.Qc5+ b6 3. Qb6!!+ Kb6 4. Bc5 Kb7 5. Na5 mate
Nice Queen sac:
1.Rd8+Ka7
2.Qc5+b6
3.Qb6+Kb6
4.Bc5+Ka7
5.Na5++
There is a forced mate in 5. All moves with checks.
1.Rd8+ Ka7
2.Qc5+ b6
3.Qxb6+ Kxb6
4.Bc5+ Kb7
5.Na5 mate.
These all-checks problems are about as subtle as a pie in the face 🙂
1. Rd8+ Kh7
2. Qc5+ (2. Bc5+? b6 3. Bxb6+ Kb7!) b6
3. Qxb6+! Kxb6
4. Bc5+ Kb7
5. Na5#
1. Rd8+ Ka7
2. Qc5+ b6
3. Qxb6+ Kxb6
4. Bc5+ Kb7
5. Na5 checkmate!
Considering that black can liquidate to, at the very least, a materially decisive endgame starting with Qh1+, my first thought would be that white needs to either get a mating attack going immediately and/or start getting together a way to prevent the exchange of queens. This suggests Rd8 as a beginning:
1. Rd8 Ka7
Now, here, white has choices to continue. Moves like Bc5, Qc5, and Qe3. Let’s look at each alternative:
2. Bc5 b6
3. Bb6 Kb7 (Kb6 4.Qc5 Kb7 5.Na5#)
4. Na5 Kb6
And it took me a couple minutes to see the right move here- I kept overlooking the mate after Ka7:
5. Rb8! Ka5 (Ka7 6.Nc6# lol!)
6. Qc3 Ka4
7. Qb4#
I could end it here since this is a force mate, however, the mechanism of the mate actually works better at move 3 for white when it is the queen that takes at b6. The reason being that black is forced to take at b6 immediately rather than delaying the mate a couple of moves by playing to b7 first:
2. Qc5 b6
3. Qb6! Kb6
4. Bc5 Kb7
5. Na5 is now mate.
If there is a shorter mate than this one in five, I am simply missing it.
1. Rd8+ – Ka7
2. Qc5+ – b6
3. Qxb6 – Kxb6
4. Nc5+ – Kb7
5. Ha5++
A ver si está bien, sino se los dejo bien en castellano;
1. Td8+ – Ra7
2. Dc5+ – b6
3. Dxb6 – Rxb6
4. Ac5+ – Rb7
5. Ca5++
No disculpen.
so bad; excuse me, correct is:
1. Rd8+ – Ka7
2. Qc5+ – b6
3. Qxb6 – Kxb6
4. Bc5+ – Kb7
5. Na5++