This one is dedicated to my friend “ComputoJon”, a world class chess collector, for his involvement with a major historic discovery (https://chessdailynews.com/two-great-intellects-of-the-18th-century/).
White to move. What is the absolute best continuation for White?
1kqr3r/2n4p/pB1Q2p1/pP3p2/P5nP/2b3P1/2P2PB1/R4K2 w – – 0 1
Chess Daily News from Susan Polgar
Too easy. 1.Qc6 then 2.Qa8 mate.
if qc6 nd5 blocking the mate
the answer is ba7+ kxa7 qc5+ kb8 qb6++
1.Ba7 Ka7
2.Qc5 Kb8
3.Qb6 mate
1. bxa6 …
If Qc6 maybe Nd5
What about Nd5 after Qc6 annonymouse? Much simpler is Ba7,Qc5and Qb6 mate.
1. bxa6 Qxa6 2. Qxc7#
Thank you Susan, that is very kind of you!!
Ba7, Qc5 and Qb6 mate
Ba7, Qc5 and Qb6 mate
Ba7, Qc5 and Qb6 mate
1.Βα7+ ΚxΒ
2Qc5+ Kb8
3.Qb6+ Qb7
qxq #
Ba7+
1.Βα7+ ΚxΒ
2Qc5+ Kb8
3.Qb6+ Qb7
qxq #
1.Ba7+ Kxa7 2.Qc5+ Kb8 3.Qb6+ and mate. This has to be at least the fourth time this tactic is presented on your blog
bad decision!!!
The correct is… Ba7+!! Kxa7, 2- Qc5+ Kb8, 3- Qb6+ Qb7 4- Qxb7++
forced mate!!!
Filipe!
bad decision!!!
The correct is… Ba7+!! Kxa7, 2- Qc5+ Kb8, 3- Qb6+ Qb7 4- Qxb7++
forced mate!!!
Filipe!
1 Ba7+ Kxa7 (only move)
2. b6# sweet!
1. Ba7+ kxa7 2. Qc5+ Kb8 3. Qb6+
Qb7 4.Qxb7 mate.
1. Ba7+ Kxa7
2. Qf5+ Kb8
3. Qb6+ Qb7
4. Qxb7#
All the black moves are forced in the line above.
1. Qc6 doesn’t work because Nd5.
After 1. bxa6
not 1. … Qxa6??
but instead Qd7 giving the black king an escape square.
My very first thought was Qc6, but, unfortunately, black has the reply of Nd5 cutting communication between the bishop and the queen, and there is no good way to proceed for white after that.
Also, though I didn’t seriously consider it, 1.ba6 clearly doesn’t work because the reply of Qa6 occurs with check, and white will lose his queen in addition to all the material he has already clearly sacrificed.
No, the right move, after about 15 seconds of consideration is
1. Ba7!
With the king’s bishop on the long diagonal, all white really needs to do is clear a way for the queen to reach b6 with check. The rest is utterly forced:
1. …..Ka7
2. Qc5 Kb8
3. Qb6 Qb7
4. Qb7#
1. Ba7+ Kxa7 2. Qc5 Kb8 3.Qb6+ Qb7 4.Qxb7++
1. Ba7+ Kxa7 2. Qc5 Kb8 3.Qb6+ Qb7 4.Qxb7++
Ba7+ Kxa7
Qc5+ Kb8
Qb6+ Qb7
Qxb7
thats was one fo those 30 seconds problems..not a real challenge..
What about Ba7+, Kxa7, Qc5+, Kb8, Qb6+?
1. Ba7+ Ka7
2. Qc5+ Kb8
3. Qb6+ Qb7
4. Qb7#
Anything wins. Either Qc6 or bxa6 win easily.
What’s wrong with Ba7+ Kxa7 (forced) Qc5#
Ba7+ Kxb7, Qc5+ Kb8, Qb6+ Qb7, QxQ#
1.Ba7ch Kxa7 2.Qc5ch Kb8 3.Qb6ch Qb7 4.Qxb7 mate
Can’t stop mate after 1. Ba7+: 1. … Kxa7 2. Qc5+ Kb8 3. Qb6+ Qb7 4. Qxb7#.
What was ComputoJon’s contribution to the story?
From Spain.
1)Qc5,Nd5
2)Ba7+,Kb7
3)Qb6#
1)Qc5,Nb5
2)Ba7+,Na7
3)Qb6+,Qb7
4)Qb7#
1)Qc5,Qd7
2)Ba7+,Kc8
3)Qb6 win
Greetings from Spain
Ba7 & Qc5 is the forcing line for checkmate. Others comments explain why Qc6 and bxa6 don’t work.
1. Ba7+, Kxa7
2. Qc5+, Kb8
3. Qb6+ and mate next move
Ba7+ KxB, Qc5+ Kb8, Qb6+ Qb7, QxQ+#.
My first inclination was to play
Qc6, but …Nd5 blocks communication
between the Queen and Bishop. As
Yancey Ward said bxa6 doesn’t work
because …Qxa6 is a check. So I
next looked at Qc5 threatening Ba7#
but …Nxb5 looks like it stops
white’s plans, but that lead me to:
1.Ba7+ Kxa7(only move)
2.Qc5+ Kb8(only Move)
3.Qb6+ Qb7(only move)
4.Qxb7#