Black's pieces are more actively placed than White's, and with 'normal' play Black would probably have an edge, but the position favours White, thanks to having a 'bolt from the blue' |
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I played 33.c4+!
After the obvious, and best, reply, 33...dxc4, the correct follow-up is 34.Nc3+! Kxb4 35.Rb1, after which Black has problems, eg 35...b5 36.d5 Nef4?! (36...Ka5!? is objectively better, but White simply plays 37.dxe6) 37.Nd3+ Ka5 48.Nxb5 Bb4 49.Nxf4 Bxd2 40.Nxg6.
Alternatively Black can try 35...Ka5, but 36.Nxc4+ Ka6 37.Nb5 (37.Nxd6 is also strong) Bf4 38.Bxf4 Ngxf4 39.Nbd6! cxd6 40.Nxd6 wins the black rook, as Stockfish17 and Dragon1 point out, thanks to the threat of 41.Ra1#.
The game saw 34.d5?, the point being 34...Nef4?? loses to 35.Nd4#. But Black has the winning intermezzo 34...Be5!, leaving Black the equivalent of a rook or more ahead.
LESSON: imaginative play (33.c4+) is great, but is wasted if followed by a shoddy continuation (34.d5?) thanks to poor calculation.
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