(1) Noe,Freddie (810) - Berman,Nathan (1118) [B08]
Calvin College Challenge Ada, Mi, 10.01.2009
[Tony Palmer]



1.d4 Nf6 2.Nc3 d6
[2...d5 would lead to an irregular QP opening where the Nc3 prevents the Pc2 from advancing.]

3.e4 g6 4.Nf3 Bg7 5.Bb5+
[5.Be2 0-0 6.0-0 c6 7.h3 Nbd7 8.e5 Ne8 9.Bf4 Nb6 Smyslov-Petrosian (Moscow, 1964) by transposition is the Classical Variation against the Pirc Defense.]

5...Bd7
[5...c6 6.Ba4 0-0 7.0-0 b5 8.Bb3 b4 9.Ne2 Nxe4 Vital-Andrianarisoa (Dresden 2008) and Black won.; 5...c6 6.Bd3 0-0 7.h3 b5 8.Be3 Qc7 9.Ne2 Nbd7 Chimthere-Sousa (African Championship, 2005) with a level game.]

6.Qd3 0-0 7.Bf4 a6 8.Bc4 b5 9.Nxb5!?
A speculative sacrifice, gaining two Pawns for a piece.

9...axb5 10.Bxb5 Bxb5 11.Qxb5 Nxe4?!
[11...Nbd7 and Black is better.]

12.Qd5
Fork.

12...Nxf2
Desperado.

13.Qxa8!?
[13.Kxf2 Nd7 14.Rhe1 and White castles by hand.]

13...Nxh1 14.Ke2 Nd7 15.Qxd8 Rxd8 16.Rxh1
DIAGRAM White has an endgame advantage due to the connected Queenside Pawns but material is even.

16...c5 17.c3 cxd4 18.cxd4 e5 19.dxe5 Nxe5 20.a4!?
[20.b3 would avoid losing a Pawn.]

20...Nxf3 21.Kxf3 Bxb2 22.Rd1 Ra8
[22...Be5?? 23.Bxe5 ]

23.Rd2 Be5 24.Ra2 Bxf4 25.Kxf4 Ra5!
An excellent move, blockading the Pa4 while cutting off the White King.

26.Ke4 Kf8 27.Kd4 Ke8
[27...Ke7 28.Kc4 Kd7 is better.]

28.Kc4 Kd8 29.Kb4 Ra7!?
[29...Rh5 30.g3 Kc7 and the Black King blockades White's a Pawn, giving Black realistic winning chances. The Rook is too passive at a7.]

30.Kb5 Kc7 31.Re2 Rb7+ 32.Ka6 Rb6+ 33.Ka7 Rb4 34.Rc2+ Kd7 35.a5 h5
[35...f5 follows the principle of advancing the candidate first, while leaving the base of the Pawn chain at h7 where it's harder to attack.]

36.a6 f5 37.Ka8 d5 38.a7 d4 39.h3 d3 40.Rf2
[40.Rc3 Rd4 41.Kb7 Rb4+ 42.Ka6 is equal per Fritz 7.]

40...Kc8 41.g4 hxg4 42.hxg4 Rxg4
DIAGRAM

43.Rd2 Rh4
[43...Rd4 44.Rxd3! Rxd3 and drawn by stalemate. With the White Pawns traded off, and the White King stuck in the corner, White now has a SuperRook which could never be taken due to instant stalemate.]

44.Rxd3 Rh8!?
[44...Rc4 keeps the draw in hand for Black, who could win after 45.Rd6 g5 but more likely White would draw with 46.Rc6+! and stalemate again.]

45.Rb3 Rh4 46.Rc3+ Kd7 47.Kb8
[47.Kb7 Rb4+ 48.Ka6 Ra4+ 49.Kb6 Rb4+ 50.Ka5 Rb1 51.Rc4 wins for White.]

47...Rb4+ 48.Ka8 f4 49.Rh3 Ke7 50.Rh7+ Kd8 51.Rb7 Rc4 52.Rb8+
[52.Kb8? Rc8# ]

52...Kc7 53.Rb7+
[53.Rc8+! Kxc8 is another draw by stalemate.]

53...Kc8 54.Rb6 Rd4?!
The Black Rook should remain on the c file to prevent checks nudging the Black King away. Better was 54 ... g5 and this should be drawn.

55.Rc6+ Kd7 56.Kb7
DIAGRAM Now White can win by building a bridge to promote the a Pawn.

56...Rb4+
[56...Ra4 57.Ra6 Rb4+ 58.Rb6 Ra4 59.a8Q ]

57.Rb6 Ra4 58.a8Q Rxa8 59.Kxa8 f3 60.Rf6
[60.Rxg6 Ke7 (60...f2 61.Rf6 ) 61.Rg3 f2 62.Rf3 wins for White.]

60...g5 61.Rxf3 g4 62.Rg3 Kd6 63.Rxg4
White has an elementary mate but is in extreme time pressure.

63...Ke5 64.Kb7 Kd5 65.Kb6 Ke5 66.Kc5 Kf5 67.Rd4 Ke5 68.Kc4 Kf6 69.Kd5 Kf5 70.Re4 Kf6 71.Kd4
[71.Re5 ]

71...Kf5 72.Kd5 Kf6 73.Re5 Kg6 74.Ke6 Kg7 75.Rf5
[75.Rg5+ Kh6 76.Kf6 Kh7 77.Kf7 Kh6 78.Rf5 Kh7 79.Rh5# ]

75...Kg6 76.Ke5 Kg7 77.Rf6 Kg8 78.Ke6 Kg7 79.Ke7
White's flag fell, but Black had insufficient mating material, so the game was drawn. Congratulations to Freddie and Nathan for their fighting spirit. 1/2-1/2