(12) Joe - Erickson,Darren [C21]
Colley's Tactics Class Games
[Darren Erickson]

1.e4 e5 2.d4 Nf6 3.Be3 Nc6 4.Nc3 d5 5.Nf3 dxe4 6.Nxe5 Nxe5 7.dxe5 Bg4 8.Be2 Qxd1+ 9.Bxd1 0-0-0 10.exf6 Bxd1 11.Rxd1 Rxd1+ 12.Nxd1 Bb4+ 13.Nc3 gxf6 14.a3 Ba5 15.b4 Bb6 16.Bd2 Re8 17.0-0 e3 18.Bc1 e2 19.Re1 c5 20.Be3 cxb4 21.Nxe2 bxa3 22.Kf1 Bxe3 23.fxe3 Rxe3 24.Ra1 b5 25.Re1 a2 26.Ra1 Ra3 27.Ke1 b4 28.c3 b3 29.Nc1 b2 30.Rxa2 b1Q 31.Kd2 Rxa2+ 32.Nxa2 Qxa2+ 33.Kd3 Qd5+ 34.Kc2
My move as recorded was 34. ...a5. The problem with this is that it creates an illegal pawn capture later. See below about another move recording error.

My next move I recorded 35. Qf3. (?) I obviously missed recording at least a halfmove by White, but I'm recording this close enough to after the game that I can recreate at least the style of endgame I played. I'm showing a longer variation at my move 41 which also demonstrates the same principle.

35.Kb3 a5 36.Ka4 Qf3 37.Kb3 Qd3 38.Ka4 f5 39.Kxa5 Qxc3+ 40.Ka4 Kb7 41.h3 Kc6
[41...Qc4+ 42.Ka5 Qc5+ 43.Ka4 Kc6 44.h4 Qb6 45.Ka3 Kc5 46.Ka4 Qb4# ]

42.h4 Kc5 43.h5 Qb4# 0-1