Faced a Spanish junior (born 2010)
Spanton (1858 Fide/1919 ECF) - Nicholas Kowalski Rubiales (1694 Fide/1708 ECF)
Philidor
1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.f4 e5 5.Nf3
Considered harmless is 5.fxe5 dxe5 6.dxe5 Nxe5 7.Qxd8+, as after 7...Kxd8 the black king is not in danger.
5...exd4 6.Qxd4
The queen is not easily harassed here, so the text is much more popular than 6.Nxd4.
6...c6 7.Be2
Normal is 7.Be3, one point being 7...Ng4 can be met by 8.Bg1.
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| How should Black proceed? |
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7...Qb6
Stockfish16 and Komodo14.1 reckon Black equalises with 7...d5!?, eg 8.exd5 Bc5 9.Qd3 Nd5 10.Nxd5 cxd5, when 11.Qxd5!? is risky in view of 11...Qa5+, eg 12.Qd2 Qb6! with obvious compensation.
8.Qxb6 Nxb6?!
Probably better is 8...axb6, the half-open a file, and the fact the a pawn now covers two squares instead of one, being more than enough compensation for doubled pawns.
9.a4 Bg4 10.a5 Nbd7 11.h3 Bxf3 12.Bxf3
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| White's bishop-pair and extra space are positionally winning (Stockfish16), or at least give the upper hand (Komodo14.1) |
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12...g6?!
Since the dark-square bishop needs to defend the weak d pawn, the text is almost certainly a waste of time and weakening.
13.Be3 Be7?!
Black probably needs to play 13...a6.
14.0-0?!
14.0-0?!
Much stronger is 14.a6, eg 14...b6 runs into 15.e5.
14...0-0?!
Again ...a6 is probably necessary.
15.Rad1
Still good is a6, but the text is also positionally winning, according to the engines.
15...a6 16.g4 Ne8 17.Na4 Bd8 18.b4 Bc7 19.c4 Rd8 20.Rd3
Even stronger is 20.c5, eg 20...dxc5 21.Nxc5 Nxc5 22.Rxd8 Bxd8 23.Bxc5, winning the exchange. One suggestion of the engines is 20...g5!? 21.fxg5 Ne5, but they agree White is winning.
20...Nef6 21.Rfd1!? Rfd8 22.c5
This is strong, but best seems to be the engines' 22.Bb6!?, eg 22...Bxb6+ 23.axb6 Nxe4 24.Bxe4 Rxe4 25.Rxd6, or 22...Nxb6 23.axb6 Bb8 24.Nc5 Re7 25.e5 Ne8 26.Ne4.
22...Nxe4 23.cxd6 Nxd6 24.Kf2?
Black cannot avoid losing significant material after the engines' 24.Bf2.
24...Nf8?
The engines reckon 24...Nc4 and 24...Nf6 equalise.
25.Nc5?
Easily winning is 25.Bb6.
25...Ne6?!
The engines reckon 25...Nc4 and 25...h6 keep Black's disadvantage to a minimum.
26.Nxb7??
White is much better after 26.Nxe6 Rxe6 27.f5.
26...Nxc7 27.Bxc6 Rxd3 28.Rxd3 Rb8
Even stronger is 28...Rd8!
29.Rd7
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| What should Black play? |
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29...Nbd8
Probably better is the engines' 29...Nd6!?
30.f5 Nxc6?!
Probably better are 30...Bf4 and 30...Rxb4!?
31.fxe6 Be5?!
Not 31...Be8?? as 32.exf7+ mates, but Black should probably have given the piece back by 31...fxe6 32.Rxc7, when 32...Nxb4 leaves Black a pawn up, but White has the better pieces.
32.exf7+ Kh8 33.Bc5
The engines prefer putting the king on a light square, for example 33.Ke2!?
33...Bg7 34.Rc7?
Better is 34.Rd6 Ne5 35.Rxa6. After 35...Nxf7? 36.Rb6 the white queenside pawns are too strong, so Black has to play 35...Nd3+ and 35...Nxc5, when the engines reckon White has just a slight edge.
34...Bd4+ 35.Bxd4 Nxd4 36.Re7?!
White is equal after 36.Ke3 or 36.Rb7!?, according to the engines.
36...Rf8 37.Ra7 Nc6 38.Rxa6 Rxf7+ 39.Ke2 Nxb4 40.Rb6 Nd5 41.Rd6?!
There are more drawing chances, according to the engines, with 41.Rb8+ Kg7 42.a6.
41...Nf4+ 42.Kd2 Nxh3 43.a6 Kg7 44.Rb6 Kh6 45.Rb7 Rf2+ 46.Ke3 Ra2 47.a7 Rc3+ 48.Kd4 Nf2 49.g5+ Kxg5 50.Rxh7
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| Black to play and win |
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50...Kg4
The engines give the only winning move as 50...Ra5!
51.Kc5 Ne4+ 52.Kb6 g5
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| White to play and draw |
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53.Kb7??
The obvious 53.Rh8 is one of several moves that draw.
53...Nd6+ 54.Kb8
Or 54.Kc6 Nb8 etc, while 54.Ka8, hoping for stalemate, loses to 54...Rc3.
54...Rb3+ 55.Kc7 Nb5+ 56.Kc6 Nxa7 57.Rxa7 Rd3 58.Rg7 Kh4 59.Kc5 g4 60.Kc4 Rd8 0-1
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