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Test your chess: daily chess puzzle # 201

April 2, 2015

White to play and win

Find the most convincing way to win

 

A Willenberg v D Bornheim 2005

 

Solution

I muffed this one. Reitstein's rubric, which I didn't give, said that white thought that 1 Bf6 would give an advantage, but wanted more, and found it. I found something, but not it, and had I applied Purdy's due process, I would have found the best move, which in hindsight is also 'obvious'.

First, my line. 1 Rf6! with the principal line 1…gf 2 Qh7+ Kf8[] 3 Qh8+ Ke7[] 4 Bf6 mate.

I thought that was 'it', the solution, and lazily only looked at the better defence 1…Rg5!. Then, 2 Qh7+ gets nowhere, so 2 Bh7+! Kf8[] (2…Kh8? 3 Bg6+ and 4 Rf7+ 1-0) 3 b4! Qe5 (3…Qa7 drops the Bd6: 4 Rd6 and white is a piece up)

4 Rf7+! (not too hard to visualise, since it is a forcing variation, and has to be looked at) 4…Kf7[] 5 Rf1+ Ke7 6 Re1 1-0

So, I was pleased with this long variation, and so turned to the solution, only to see what I had missed. There is a phrase in chess 'long variation, bad variation' and mine is a case in point. Instead, examine all biffs leads you to 1 b4! which diverts the Q, and also means that black can't defend by playing …Rh5: so e.g. 1…Qc8 2 Bf6 and it is all over.

Finally, if instead 1 Bf6, then 1…Rh5 is messy. 2 b4 Rh4 3 bc gf 4 cd Rd4 5 Rad1 and white is better, but the game goes on.

 

 

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