The Brynamlwg Tavern will be closed next Tuesday, 18 April, so there will be no chess that night.
Aberystwyth A continued their strong run in this year's Dyfed League with a home win against Gwyddbwyll.com at the Brynamlwg Tavern on Tuesday 4 April. On top board, Rudy van Kemenade won a pawn against Iwan Griffiths in an Italian Game, and Black's two bishops were not enough compensation; Rudy won on time, but was dominating the ending anyway. Adam Watkin-Jones, playing a Sicilian Defence, had reached a level position with only major pieces and pawns left, when Owen Llywelyn blundered, dropping his otherwise defensible b-pawn and letting the Black pieces in for a quick win. Ian Finlay was under pressure in a Queen's Gambit against Tegwyn Jones; it looked as if he could hold, but he fell into a nasty trap, and his position abruptly collapsed. Sam Holman won an exchange early on against Emyr Llywelyn, but it was his kingside pawns, charging down the board, that really did the damage; White's attempts at a mate on the other wing never looked realistic. The match finished 3-1 to Aber.If only we could get some transport for our away matches, this could be a good year for the team.
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| Move | N | Result | Elo |
|---|---|---|---|
| Replay and check the LiveBook here |
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1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.0-0 0-0 6.Re1 d6 7.c3 7.a4
main 7...Bg4 7...Na5 main 8.Bb5 a6 9.Ba4 transposes to Ruy Lopez 8.Nbd2 8.h3 alternative 8...Qd7 8...Na5 8...a6 9.Bb3 Rad8 10.h3 10.Nf1 alternative 10...Be6 10...Bh5 main 11.Bc2N Wh's aim was
not to look to any immediate advantage, but rather to get a complex position
with lots of alternatives,especially since the Bl player was unfamiliar with
these kinds of positions 11.Ba4 a6 11...Qe8 12.d4 exd4 13.cxd4 Bd7 14.Bc2 Nb4 15.Bb1 Bb5 16.Qb3 c5 Horvath- Barabas, HUN ch tm 2003, 0-1 11...Qc8 12.Qe2 Bd7 13.Bb3 Be6 14.Bc2 h6 15.d4 exd4 16.cxd4 Nb4 17.Bb1 c5
Bartos-Janousek, Harrachov op 2009,1-0 12.d4 exd4 13.cxd4 d5 14.e5 Ne8 15.Nf1 b5 16.Bc2 Morhart-Fahrenholz,GER ch U20 Girls;Halle 1994,1-0 11.Nf1 Bxb3 12.Qxb3 12.axb3 d5 13.exd5 Qxd5 14.Bg5 Von Herman-Winter, BLwomen
1992, draw agreed 12...b6 13.Be3 Qe6 Rost-Delinotte, FRA ch tm U18, 1996,
1/2-1/2 11...d5 11...Qc8 12.Nf1 h6 13.Ng3 Rfe8 14.d4 Komodo10 12.Qe2 12.Ba4 considered Qd6 12...Bd6 13.exd5 Nxd5 14.Nxe5 Bxe5 15.Rxe5 Nb6 16.Bxc6 Qxc6 17.Nb3 17.d4 Bd5 18.f3 Rfe8 17...Qd6 18.Bf4 Qxd3 19.Qxd3 Rxd3 20.Nc5 Rd5 21.Nxb7 Rxe5 22.Bxe5 Nc4 23.Bxc7 Nxb2 24.Nd6 Nc4 Komodo10 13.exd5 considered Bxd5 14.Bxc6 Qxc6 15.Nxe5 Qa6 16.d4 Rfe8 17.b3 Komodo10 12.exd5 Nxd5 12...Qxd5 13.Qe2 13.Nc4 e4 13...Rfe8 13...Bd6 14.Bb3 Qc5 15.Bxe6 fxe6 16.Nc4± 13.Nxe5 Nxe5 14.Rxe5 Bd6 Bl has a Marshall gambit type position 15.Re4 15.Re1 Bxh3 16.gxh3 Qxh3 17.Nf1 Nf4 18.Bxf4 Bxf4 19.Qe2 Rd5 20.Ng3 Rg5 21.Qf1 Qh6 22.Qg2 Qd6 23.Kh2 Qh6+= 15...Bf5 16.Re2 Nf4 17.Re3 Nd5 18.Rf3 Rfe8 Komodo10 12...dxe4 12...d4 13.cxd4 13.c4 Qd6 14.Ba4 13...Nxd4 14.Nxd4 Qxd4 15.Nf3 Qc5 16.Be3 Qb5 17.a4 Qa5 18.d4 exd4 19.Nxd4 Bc8 Komodo10 13.dxe4 Ne8 Komodo10 14.Nf1 14.Nc4 f6 15.Nh4 g6 16.Bh6 Rf7 17.Rad1 Qc8= Komodo10 14...Nd6 14...f6 15.Ne3 Kh8 16.Ba4 16.Nd5 16.Rd1 considered; Komodo10- Wh has a slight pull on the wh squares 16...f6 16...Nd4 17.Bxd7 17.cxd4 Qxa4 18.b3 Qe8 18...Bxb3 19.dxe5± Nxe4 20.Nf5+- 19.Bb2 Nxe4 20.d5 Bd7 21.Qc2 f5 22.Nxe5 Bd6 23.Nxd7 Qxd7 24.Nxf5 Qxf5 25.Rxe4 Qxd5 26.Rae1 17.Nxd4 Qxa4 18.b3 18.Nxe6 fxe6 19.f3 Bg5= 18...Qd7 19.Nxe6 Qxe6 20.Nd5 Rd7 21.c4= 17...Nxe2+ 18.Rxe2 Bxd7 19.Nd5 Bf6 20.Nxc7 Bc6 21.Nd2 Nxe4 22.Nxe4 Rd1+ 23.Kh2 Bd8 24.Na8 Bh4 25.b3 Rxa8 26.Bb2 Rxa1 27.Bxa1 Bd8 27...Rd8 28.c4 28.c4 f6 Komodo10 17.Rd1 a6 18.c4 18.Nd5 18...Qe8 18...b5 19.cxb5 Na5 20.Bd2 Nac4 21.Bb4 axb5 22.Bb3 Rc8 23.Nxc4 bxc4 24.Bc2= Komodo10, but
humans would like the prospect of playing with an outside passed pawn 19.Nd5 Qf7 19...Nxc4 20.Bxc6 bxc6 21.Nxc7 Rxd1+ 22.Qxd1 22.Kh2 Qd7 23.Nxe6 Qxe6 24.Qxd1= Komodo10; but Bl has awkward split Q side pawns 22...Qd7 23.Qxd7 Bxd7 24.b3 Bd6 25.Nxa6 Ra8 26.bxc4 Rxa6 27.Be3 Be6 28.c5 Bc7 29.a4 Bc4= Komodo10 29...Bb3 30.Rb1± Bxa4 30...Bg8 31.Nh4 Ra8 31...Rxa4 32.Rb7 Ba5 33.Nf5 Rxe4 34.Ne7 Rb4 35.Ra7 Bd8 36.Nxc6 Rb1+ 37.Kh2 Rd1 38.Nb4+- 32.Nf5 Bd8 33.Rb7 31.Rb7+- Komodo10 20.b3 risky as
the B may be trapped 20.Bxc6 bxc6 21.Nxe7 Qxe7 21...Bxc4?! 22.Qc2 Qxe7 23.Rxd6 cxd6 24.Qxc4 d5 25.Qxa6 dxe4 26.Nd2 Qc5 27.Qc4 Qxc4 28.Nxc4± 22.b3 considered; but the doubled pawns are difficult to attack, & Bl is rid
of a bl square B that looks a potential liability ( obstructed by its pawns) 20.c5 considered; but the c5 pawn will need protection. Bl is fine after Nb5 21.Be3 21.Bxb5 axb5 22.Qxb5 Bxd5 22...f5! Komodo10 23.exd5 Rxd5 24.Be3 Rb8 21...Nbd4 22.Nxd4 Nxd4 23.Bxd4 exd4 24.b4 c6 25.Nxe7 Qxe7= 20...b5 21.cxb5 21.Nxe7 Qxe7 22.cxb5 axb5 23.Bxb5 Nxb5 24.Rxd8 Qxd8! 25.Qxb5 Qd1+ 26.Qf1 Qc2 27.Qe1 Ra8 28.Bd2 Nd4 29.Nxd4 exd4 30.Rc1 Qxa2 31.Rxc7 Bxb3= Komodo10 21...axb5 21...Nxe4! Komodo10 22.Qxe4 axb5 23.Bxb5 Rxd5 24.Be3 Nb4 25.Bc4 Rxd1+ 26.Rxd1 c6 26...Nxa2 27.Rd7 Bxc4 28.bxc4 Qe6 29.Rxc7 27.Bxe6 Qxe6 28.Qb1 Kg8= Komodo10;
but Wh has retained the outside a pawn and Bl has kept his inferior B. Wh must
ensure that Bl doesn't get a K side attackwith a central pawn advance, however
the Wh N will be wellplaced on c4 22.Bxb5 22.Nxe7 is what Komodo10 keeps
suggesting for Wh Qxe7 23.Bxb5 Nxb5 24.Rxd8 Qxd8 25.Qxb5 as in an above
line 22...Nxb5 23.Qxb5 Nb4 24.Ne3 24.Nc3 considered more accurate by
Komodo10-protects a2 rather than c2 Rxd1+ 25.Nxd1 24...Rxd1+ 24...Ra8 25.Bb2 25.Qe2 Bxb3 26.Rd7 Qe8 27.Rxc7 Bd6 28.Rc3 28.Rxg7 Kxg7 29.Nf5+ Kh8 30.Nxd6 Qd7 31.Nf5 Be6 32.Bh6 Rg8 33.Rd1 Qc7 34.N3h4 Rxa2 35.Qf3= Komodo10; Wh has K side chances 28...Rxa2 29.Bb2 Rxa1+ 30.Bxa1 Be6 25.Nxd1 Nc2 26.Rb1 Na3 Bl relies on getting 2 Bs to save him 26...Nd4 27.Nxd4 exd4 28.f3 c5 preferred by Komodo10 26...Qg6 27.Nc3 Bxh3 28.Nh4 Qh5 29.gxh3 Qxh4 30.Qe2 Nd4 31.Qg4 Qxg4+ 32.hxg4= Komodo10 27.Bxa3 Bxa3 28.Nc3 28.Ne3 Qg6 28...Rd8 29.Nd2 Bxh3 30.b4+- Komodo10 28...Rd8 29.Rd1 Rxd1+ 30.Nxd1 Qd7 30...Qg6 31.Qb8+ 31.Qa6 Bd6 32.Qa8+ Bg8 33.Qc6± Komodo10 31...Bg8 32.Qb7± Rudy 31.Qxd7 Bxd7 32.Nd2 the N gets c4, & in the long run the a pawn decides. This is actually not a
position that favours the 2 Bs over the Ns- there are pawns on both sides of
the board , however Bl's are static & easily blockaded by the Ns. Bs want
mobile pawns they can shepherd forward. Bc5 33.Kf1 f5 in search of activity,
but it weakens e4 & e5 34.exf5 Bxf5 35.Ke2+- Kg8 & Bl's K is further away
36.Ne3 36.f3 Kf7 37.Ne4 also tempting 36...Bg6 37.Ndc4 37.Nec4
is the correct N according to Komodo10 e4 38.Ne5 Bf5 39.g4 and the e pawn
falls 37...Bd4 38.Nd5 Ne7 threat as well as pawn 38.f3 also 38...Be4 39.Nde3 Bl's flag fell here 39.Nxc7 Bxg2 40.h4± should be fine,
but the loose Wh pawns give some chances to the Bs to probe the K side while
holding up the Wh Q side pawns 39.Nde3 in the pm analysis the a pawn won
comfortably for Wh Bb1 40.a4 40.Nd2! Komodo10, because if Bl takes the
a pawn, the B will be lost in about 5 moves 40...Kf7 40...c5 prevents
the b pawn from moving, but the Bon d4 was holding the a pawn, which just runs
through 41.a5 Be4 42.a6 Kf8 43.a7 Ke7 44.Nb6 wins a B , then returns for
more pawns 41.Nd2 Ke6 41...Bg6 42.f3 Ke6 43.Ne4 Be8 44.Kd3 Bc6 45.Nc2 Bb6 46.Nb4 Be8 47.Na6 Kd5 48.b4 h6 49.Nc3+ Kc6 50.b5+ Kb7 51.Kc4 51.Nb4 51...c6 52.Nc5+ Ka7 53.Kb4 Bd8 54.a5 cxb5 55.Nxb5+ Kb8 56.Nd6 Bc6 57.Nf7 57.Ne6 Be7 58.Kc5 Ba8 59.Nxg7 and it looks as if the decision happens
on the K side, but suddenly the power of the Bs is felt- even when "winning
easily" in an andgame one has to keep alert for sudden tactical possibilities Kc7 60.Ngf5 Bf8= 61.a6 e4 62.fxe4 Bxe4 63.g4 Bxf5 64.gxf5 Bxd6+ 65.Kd5 Bb4 Bl can't win because of the wrong colour B + RP 66.Ke6 Kb6 67.f6 Kxa6 68.Kf7 Kb5 69.Kg7 h5 70.f7 Kc4 71.f8Q Bxf8+ 72.Kxf8 Kd3 73.Kg7 Ke3 74.Kg6 Kf4 75.Kxh5 Kf5 and Wh can't win either because of his h pawn 57...Bf6 58.Ne4 Be7+ 59.Kc4 Bb7 60.Kb5 Ka7 61.Nxe5 42.a5 e4 1–0
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| White | EloW | Black | EloB | Res |
|---|---|---|---|---|
| Van Kemenade,R | 1962 | Griffiths,I | 1609 | 1–0 |
| Llywelyn,O | 1513 | Watkin-Jones,A | 1960 | 0–1 |
| Finlay,I | 1372 | Jones,T | 1197 | 0–1 |
| Llywelyn,E | 943 | Holman,S | 1334 | 0–1 |
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