Solution to Sudoku no 716

Sudoku no 716 (Easy)

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Chess Solution no 16

 

1. Qe8+  Kg7

2. Nf5+  Kf6

3. Qe6#

Chess Puzzle no 16

This position is from jaeger1 versus seanhoran. It was played on Gameknot in 2019. White to play and checkmate in 3 moves:

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Solution to Sudoku no 715

Sudoku no 715 (Diabolical)

Our younger son created this sudoku using a Javascript program which he wrote himself:

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Chess Solution no 15

The game continued as follows:

1. Nxf6+  Qxf6

2. Qxh7+  Kf8

3. Ne4  Qxb2

4. Nxd2

At this point, Tal resigned.

Notice that if:

4. ...  Qxd2

5. Rxc8+  Rxc8

6. Qh8+  Ke7

7. Qxc8

Chess Puzzle no 15

The position below is from Oleg M Romanishin versus Mikhail Tal, Barcelona, 1992. It is white to play. Try to work out how the game continued:

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Solution to Sudoku no 714

Sudoku no 714 (Extreme)

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Chess Solution no 14

1. ...  Rxh5+

2. Kg4  Rg5+

3. Kf4  Qxg3+

4. Ke4  Re5+

5. Kd4  Qe3#

 

or

 

1. ...  Rxh5+

2. Kxh5  Qg6+

3. Kh4  Qg5+

4. Kh3  Qh5#

 

etc.

Chess Puzzle no 14

This position is from a game apparently played by Capablanca. According to the web site where I found it, the other player was born 50 years after Capablanca died so I will not be giving his name as it is clearly incorrect. Black to play and checkmate in 5 moves:

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