The following game between Tarrash and Allies (Naples, 1914) is one of the most famous and illustrative examples of interfering.
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Naples |
1.f4 d5 2.Nf3 c5 3.e3 Nc6 4.Bb5 Bd7 5.O-O e6 6.b3 Qc7 7.Bb2 f6 8.c4 Nce7 9.Nc3 Nh6 10.Rc1 Bxb5 11.Nxb5 Qd7 12.Qe2 Nc6 13.cxd5 exd5 14.e4 O-O-O 15.e5 a6 16.Nc3 b5 17.a4 b4 18.Nd1 Kb7 19.exf6 gxf6 20.Bxf6 Re8 21.Ne3 Rg8 22.Qd3 Ng4 23.Nxg4 Qxg4 24.Rf2 Qd7 25.Ne5 Nxe5 26.Bxe5 Rc8 27.Qf3 Kb6 28.d3 Bh6 29.Rfc2 d4 30.a5+ Kb5
31.Bc7 after which Black resigned.
Tarrasch played the ingenious interference move 31.Bc7 which is, according to Renfield, one of the most beautiful oves ever played on the chess-board. This blocks off both defences, and the capturing piece becomes overloaded. That is, after 31...Rxc7 the rook becomes overloaded, since the queen is blocked from b7. We will look at this continuation later.
If Black plays 31...Qxc7 the queen blocks off the rook’s defence of c5 and becomes overloaded: 32.Rxc5+ Qxc5 deflects the queen from defence of b7, allowing 33. Qb7+ Kxa5 34.Ra1#
If Black plays 31…Rxc7, White will continue with 32.Qb7+ Rxb7 deflecting the rook from defence of c5, allowing 33.Rxc5# 1-0
In the next chess lesson we will start with the Scotch Gambit.
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