An incident from the last 4NCL weekend:
White has built up a promising position and is closing in on the Black king, no doubt confident of impending victory.
Black, the higher-rated player, realises the danger and using the old adage, a wing attack should be countered by play in the centre, plays:
16. ... f6?? This is a fatal weakening, better to wait it out and try to swap further material with 16. ... Ba6. 17. h5! Threatening 18. Ng6+ hxg6 19. hxg6+ Kg8 20. Rh8+! Kxh8 21. Qh3+ Kg8 22. Qh7 mate.
17. ... Qf7 The best Black can expect is to emerge the exchange down. 18. Ng6+ Kg8 19. Nxf8 Nxf8 20. h6
White has a significant advantage now and is patiently waiting to see how Black intends to continue the struggle...
However, White is suddenly lost 0-1.
How did that happen?
Black was saved by the bell, White's phone to be precise; it rang and White lost!
We all know we have to turn off phones before a match; the tournament controller may even remind everyone of this. However that doesn't guarantee that it will happen. Fortunately it didn’t affect the result of the match. White’s team won convincingly without his help.