A faulty trap may boomerang. But only if the would-be victim is awake.
Sergey Tegai White
Dmitry Hegai Black
Krasnoyarsk 2011
Center Counter Defense B01
1 e4 d5 2 exd5 ♕xd5 3 ♘c3 ♕d6 4 d4 ♘f6 5 ♗d3
This sets the first of many traps (5...♕xd4?? 6 ♗b5+ costs the queen).
5...♘c6! 6 ♘ge2 e5
Good for Black is 7 dxe5 ♘xe5, intending 8...♘xd3+.
7 0-0! ♘xd4
White gets his pawn back after 7...exd4 8 ♘b5 ♕d8 9 ♘exd4 (9...♘xd4 10 ♘xd4 ♕xd4?? 11 ♗b5+). But 9 ♗f4 may be even better.
8 ♘xd4 ♕xd4! 9 ♘b5 ♕d8 10 ♖e1 c6 11 ♖xe5+ ♗e6?
Black would equalize after 11...♗e7 but prefers to set a trap.
12 ♘d4?? ♕xd4!
White probably expected 12...♕d6 12 ♗f4. For example, 12...0-0-0 13 ♘xe6 and he is better.
13 ♖xe6+ fxe6! 14 ♗g6+ hxg6 15 ♕xd4 ♖d8! White resigns.
White missed 16 ♕c3 ♖d1+ mates.
But the trap should have boomeranged after 12 ♗f4!, which threatens 13 ♘c7+ ♕xc7 14 ♖xe6+ and 15 ♗xc7.
White would be clearly superior after 12…♗e7 13 ♖xe6 fxe6 14 ♘c7+.
Question 287: What would happen after 12...cxb5 13 ♗xb5+ ♘d7 ?
Igor Vakhlamov White
Pavel Ponkratov Black
Moscow 2016
1 e4 d5 2 exd5 ♕xd5 3 ♘c3 ♕d6 4 d4 ♘f6 5 ♗d3 ♘c6 6 ♘ge2 ♗g4!? 7 f3 ♗h5 8 ♗f4 ♕d7 9 ♕d2 ♘b4 10 ♗c4 ♗g6 11 ♗b3 e6 12 g4 0-0-0 13 0-0-0 ♕c6 14 a3 ♘bd5 15 ♗g5 ♘xc3 16 ♕xc3 ♕b5 17 ♕e3 ♘d5 18 ♕d2? ♖d6! 19 ♗a2 ♖c6 20 c3 ♕a5 21 ♗h4 ♗xa3! 22 ♗xd5 ♕xd5 23 bxa3 ♖b6 White resigns.