It’s Your Move: daily chess puzzle #264

White to play and win

O'Kelly v Toran, Olot 1970

Solution

One to spend time on: this one took me a good while (plenty of off and on thinking at home, then a long dog walk in Lyme Park, then pieces on the board to move around.

I got the initial idea immediately, but never got all the follow up. I did manage to find the wins against Black's secondary defences, but overall my attempt was a fail, missing the precise second and third moves in the main line.

So, 1 Nf5!, but what after 1…gf?

My annotated solution is here.

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