The More Complicated the Better

On Monday 4 February, not long after their 3-1 away win against Steynton B, Aberystwyth played the rematch. Only the top board pairing was the same; Rudy van Kemenade, playing Black against Mark Paffard's Reti Opening went for a Dutch style counter-attack, and got the kind of complications he thrives on. As expected in such contests, both players missed chances, but White's king proved the more vulnerable. Adam Watkyn-Jones lost a pawn early on in a Queen's Gambit Declined against Colin Denham, but his kingside pressure eventually won him a piece. With queens on and only a couple of pawns left for each player, there was still a lot of play left in the position when Black lost on time. Julie van Kemenade's early central pawn break against Scott Hammett's d4 led to an exchange of queens and a less sharp position than she usually gets in the middlegame; White's doubled pawns were not enough of a weakness to unbalance the game. Finally, in a match where the more complicated positions worked out in favour of Aber, James Cook's Exchange Variation against John Miller's French Defence left him with a weak isolated pawn and a worse ending. The match finished 2½ -1½ to Aber.

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Move	N	Result	Elo

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1.Nf3 Mark usually plays e4, avoiding a Petroff? d6 2.d3 2.d4 2...g6 3.g3 Bg7 4.Bg2 Nc6 4...e5 5.Nbd2 f5 Bl is being ambitious 5...e5 6.c3 Nf6 7.0-0 0-0 8.Re1 There is no need for this, as Wh has sufficient already to play e4. The text slightly weakens f2, a prime Bl attacking point in this Leningrad Dutch setup 8.e4 main 8...e5 9.e4 f4 Deep Fritz13 & Komodo12 9...Kh8 9...h6 also played 10.Nf1 10.d4 main,opening the centre is the usual response to a side attack 10...Nh5 Cloud Engines 10...Bg4 11.h3 Bd7 12.Kh2 g5 13.d4 g4 14.Nh4 gxh3 15.Bxh3 fxg3+ 16.Nxg3 Ng4+-+ Talegon Rodriguez-Romero Holmes, Leon Masters League 2011, 0-1 11.h3 h6 12.g4 Nf6 13.g5 13.d4= Stockfish10 13...hxg5 14.Nxg5 Qe7 14...Nh7 15.Qb3+ Kh8 16.Nf7+ Rxf7 17.Qxf7 Nf8 18.Qb3 Qg5 Stockfish10 15.Nh2 Nh5 15...Nh7 15...Nd8 both Stockfish10 16.Ngf3 Be6 16...Nd8 17.Kh1 Bh6 trying to line up against h3, but it does weaken e5 17...Nd8 18.d4= Bd7 18...Bc8!? 19.a4 19.Qb3+ anticipated by Bl Kh7 20.Qxb7 Rab8 21.Qa6 21.Qxc7? Rfc8 21...exd4 Stockfish10 22.cxd4 Nb4 22...Bg7 23.Qc4 c5 24.dxc5 dxc5 25.Ng4 Bb5 26.Qb3 Nd3 27.Rd1 c4 28.Qc2 Rfc8= Stockfish10, Bl has good piece play for the pawn 19...Kh7 19...a6 considered 19...a5 19...Nf6 Stockfish10 20.b4 Rg8 underestimating the threast 20...Bg7 20...a6= 20...Rfe8 21.b5+- Nd8 22.dxe5 dxe5 23.Qd5 both sides miscalculated around this point 23.Nxe5 Bxh3 24.Bxh3 Qxe5 Thought OK by Bl, but the Wh pieces get very active 25.Nf3 Qxc3 25...Qg7 26.Bb2 Nf7 27.Rg1 Qf6 28.Qc2 Qe7 29.e5+- 26.Ra2 Nf7 27.Rc2 Qb4 28.Rxc7 Rg7+- Stockfish10, looks very precarious for Bl 23.Ba3 pm analysis Qe8 Stockfish10 23...Qg7 24.Nxe5 Bxh3 25.Bxh3 Qxe5 26.Nf3 Stockfish10 Qxc3 27.Qe2 Qb3 28.Bb2 Qf7 29.Rg1+- 24.Nxe5 Bxb5 25.axb5 Qxe5 26.Ng4 Qxc3 27.e5+- the Wh Bs have become very powerful 23...Be6 looks good, but Stockfish10 finds the flaw 23...Re8 24.Ba3 Qg7 25.Rad1 Nf6 26.Qc5 c6 27.Nxe5 b6 28.Qd4 c5 29.Qd6 Re6 30.Qc7 Rc8 31.Qxa7 Rxe5 32.Qxb6 Nf7 33.c4 Stockfish10 24.Qd3 24.Qxe5! Bg7 25.Ng5+ Kh8 26.Ba3 Stockfish10 saves the Q Bxe5 27.Bxe7 Re8 27...Bxc3? 28.Bxd8 Raxd8 29.Nxe6 Bxa1 30.Nxd8 30.Rxa1 30...Bd4 31.Nf7++- 28.Bb4 Nf7 29.Nxe6 Rxe6 30.Nf3± Stockfish 10 24...Nf7 25.Ba3 Qf6 25...Qe8 26.c4 Rd8 27.Qe2 Bf8 28.c5 Nf6 Stockfish10 26.Ng4 Qg7 26...Qh8!? 27.c4 Bg5 going round a circuit , & clearing the h file 27...Bxg4 28.hxg4 Nf6 29.Bb2 Rge8 30.Qe2= Nxg4 31.Bh3 Nf6 32.Rg1+- Stockfish10 28.c5 Bxg4 28...Bf6 29.c6 bxc6 30.Rec1± Stockfish10 29.hxg4 Nf6 30.Bh3 this ties the B down-interestingly, Stockfish10 abandons the pawn & goes for piece play elsewhere 30.c6 bxc6 30...Nxg4 31.Qd7 Ngh6 32.cxb7 Rab8 33.Qxc7+- 31.Rac1 Nxg4 32.Qd7 Nxf2+ 33.Kg1 Bh4 34.Nxh4 Rad8 35.Qe6 Nd3 36.Rxc6 Nxe1 37.Rxc7 Rge8 38.Qxf7 Qxf7 39.Rxf7+ Kg8 40.Rxa7 Nxg2 41.Kxg2± 30.Qb3 Qh6+ 31.Kg1 Rg7 32.Kf1 Nxg4 33.Ke2 Nf6 34.c6 bxc6 35.Rec1+- Stockfish10 30...Rad8 30...Bh4 31.Qb3 31.Nxh4 Qh6-+ 31...Ng5 32.Nxg5+ Bxg5 33.Kg1= Stockfish10 31.Qc3 31.Qc2 pm analysis Bh4 Stockfish10 32.Red1 c6 33.Kg2 Ng5 34.Nxg5+ Bxg5 35.f3 Qf7 31.Qb3 Qh6 32.Kg2 Rg7 33.Rh1 Nxe4 34.Kg1 Nd2 35.Nxd2 Rxd2 36.Bg2 Bh4 37.Bb4 Rxf2 38.Be1 Rxg2+ 39.Kxg2 g5 40.Rd1 Qf6 41.Qd5 Nh6 42.Qd3+ Rg6 43.Kf1± Stockfish10 31...Rge8 31...Bh4= Stockfish10 32.Qc2 32.c6 b6 33.Kg2 Stockfish10 32...Kg8 32...Bh4 33.Kg2 Ng5 34.Nxg5+ Bxg5 35.f3 Qg8= Stockfish10 33.Rad1 Nh7 34.Bb2 34.c6± 34.b6± 34...Bf6 completing the circuit 35.Qb3 Kf8 35...Qh6 36.Kg2 Kg7-+ Stockfish10 36.Rd5 36.Kg1 Nhg5 37.Bg2 c6 Stockfish10 36...Qh6-+ 37.Kg2 Nhg5 37...Rxd5 Stockfish10- something like this considered in pm analysis 38.exd5 38.Qxd5 Nhg5-+ 38...e4 39.Ng1 f3+ 40.Kf1 Bxb2 41.Qxb2 Nhg5 42.Qc1 Qh4 43.Qf4 Nxh3 44.Qh2 Nfg5-+ 38.Rh1 Nxf3 39.Kxf3 Ng5+ 39...Rxd5! Stockfish10 40.exd5 e4+ 41.Kg2 f3+ 42.Kg1 e3 42...Bxb2 43.Qxb2 e3-+ also 42...Qd2 43.Bxf6 Qe1+ 44.Bf1 e3 45.Bh4 e2 46.Kh2 Qd1 47.Qxf3 e1Q-+ 43.Bxf6 Qf4 44.Qd3 e2 44...exf2+ 45.Kxf2 Re2+ 45.Bc3 e1Q+ 46.Bxe1 Rxe1+ 47.Qf1 47.Bf1 Qxg4+ 48.Kh2 Ne5 mating 40.Kg2 40.Ke2 f3+ 41.Ke1 Nxe4-+ 40...f3+ 41.Kf1 41.Kg3 Nxe4+ 41...Nxh3 42.Qxf3 42.Rxh3? Qf4# foreseen by Bl 42...Qf4+ 43.Qxf4 Nxf4-+ 42.Kh2 42.Kxf3 Qf4+ 43.Ke2 Qxf2+ 44.Kd1 Rxd5+ 45.Qxd5 Qxb2-+ 42...Qf4+ 43.Kg1 Bh4 44.Rh2 Bxf2+ 45.Rxf2 Qg3+ 46.Rg2 f2+ 47.Kf1 Qxb3-+ 41...Nxe4 stronger than the initially planned 41...Nxh3 42.Qxf3+- 42.Rxd8 42.Qxf3 Rxd5 43.Qxe4 Rd1+ 44.Kg2 Rxh1-+ 42...Rxd8 43.g5 43.Kg1 Qf4! 43...Qh4 44.Qxf3 Rd1+ 45.Kg2 Rxh1 46.Kxh1 Qxh3+ 47.Qxh3 Nxf2+ 48.Kg2 Nxh3 49.Kxh3 c6 planned, though its only a pawn, enough to win 44.Rh2 Bh4 and Rd2 is also coming 43...Qh4 43...Qxg5 Stockfish10 44.Qc2 44.Qxf3 only way to hold up an early mate Nd2+ 44...Rd1+ 0–1

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White	EloW	Black	EloB	Res

Paffard,M	1739	Van Kemenade,R	2021	0–1
Watkin-Jones,A	1928	Denham,C	1630	1–0
Hammett,S	1533	Van Kemenade,J	1761	½–½
Cook,J	1496	Miller,J	1565	0–1

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