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1.e5 dxe5
2.h6 e4
3.h7 Bf7
(3…Bxh7
4.g7++)
4.Kxf7 e3
5.g7+ Kxh7
6.g8=Q+ Kh6
7.Qg6++
1. e5! dxe5 2. h6 e4 3. h7 Bf7 (3. … e3 4. hxg8#) 4. Kxf7 e3 5. g7+ Kh7 6. g8Q+ Kh6 7. Qg6#
NO CLUE.
mate in 4?
e5 … cxe5 or d5
h6 … e4 or d4
h7 .. bishop takes (Bxh7)
g7 check mate!!
Cannot let the Bishop escape.
1. e5 dxe5 2. h6 e4 3. h7 Bf7 4. Kxf7 e3 5. g7+ Kxh7 6. g8=Q+ Kh6 7. Qg6#
The key moves are h6, … h7, and then the other variations result in g7++ or hxf8(Q)++. The additional moves are just variations but the main theme is push the h pawn forward and trap the king irregardless of the other activity in the center. If the bishop takes h7 then g7++ etc.
The trick lies in fixing the e6 pawn with
1. e5 dxe5 (1…d5 also goes the similarly)
2. h6 e4
3. h7 Bf7 (If 3…Bxh7 then 4. g7#)
4. Kxf7 e3
5. g7+ Kxh7
6. g8=Q+ Kh6
7. Qg6#
ez just trap the bishop
Just start with h6! and everything will show itself.
DMG
1.h6d5
2.h7Bf7
3.gxf7dxe4
4.Ke8e3
5.f8=Q+Kxh7
6.Kf7e2
7.Qg7#
If 1. h6? e5!, the bishop will escape. So:
1. e5! dxe5 2. h6 e4 3. h7 Bf7 (3…Bxh7? 4. g7#) 4. Kxf7 e3 5. g7+ Kxh7 6. g8=Q+ Kh6 7. Qg6#
Nice puzzle!
To start with h6 seems likely, we test it:
1. h6 Bh7??
2. g7#
1. … Bf7?
2. Kxf7 d5/e5
3. g7+ Kh7
4. g8=Q+ Kxh6
5. Qg6#
1. … d5?
2. h7! Bf7 (Bh7 g7#. dxe4/d4/e5 hxg8=Q#)
3. Kxf7
is the same as above, mate in 6.
So then we have only one option for black’s move in this line:
1. h6 e5
To give bishop free run!
Now I can easily see that white hardly has a mate in this line.
But from what we have learned above, it’s possible to find a new idea, prevent bishop from running with:
1. e5! dxe5/d5 (Bh7 g7#. Bf7 Kxf7 is still mate in 5 moves)
2. h6!
Now this was timely. Bf7 is now mate in 6, so:
2. … e4/d4
3. h7! Bf7 (Bh7 g7#. dxe4/d4/e5 hxg8=Q#)
4. Kxf7 e3/d3
5. g7+ Kh7
6. g8=Q+ Kxh6
7. Qg6#
To repeat the clean line without comments:
1. e5 dxe5/d5
2. h6 e4/d4
3. h7 Bf7
4. Kxf7 e3/d3
5. g7+ Kh7
6. g8=Q+ Kxh6
7. Qg6#
The important observation was that black never has Bh7 since g7 then mates. And allowing KxBf7 also gives a quick mate. So then it’s obvious to prevent B from running with 1. e5!
Very clever first move.I guessed that the immobile B is the key to the solution.I tried 1.h6 and considered black’s replies 1…. Bh7,1…. Bf7 and 1… d5.Analysis resulted in check mate in 2,5 and 6 moves respectively.When I tried the last alternative 1…. e5 I felt things have gone out of hand.then I suddenly realized that B should not be given freedom and the key move dawned on me.
1.e5!! dxe5
1… d4 gives no hope of freeing the bishop.
2.h6 e4
2… Bh7 3.g7#
2… Bf7 3.KxB as in mainline.
3.h7 Bf7
4.Kxf7 e3
5.g7+ Kxh7
6.g8=Q+ Kxh6
7.Qg6#