[Event "2. DSB Kongress"]
[Site "Berlin GER"]
[Date "1881.09.02"]
[Round "5"]
[White "Mason, James"]
[Black "Chigorin, Mikhail"]
[Result "1-0"]
[ECO "A00k"]
[EventDate "1881.??.??"]
[Openingcode "12"]

{Annotations based on those in The Principles of Chess in Theory and Practice by James Mason.}
1.e3 f5 2.d4 e6 3.Nf3 Nf6 4.Be2 b6 5.O-O Bb7 6.c4 d5 {Black adopts a faulty formation in thus leaving his King Pawn behind.  The weakness is not one to trouble much until late in the game; but it should be avoided on principle, while not called for by the necessities of the position.} 7.Nc3 Bd6 8.b3 O-O 9.
Bb2 Nbd7 10.Nb5 Ne4 {Leaving the Bishop to be taken, for the sake of the open file and some little gain of time.  White can do no better than excange.} 11.Nxd6 cxd6 12.Nd2 dxc4 13.Nxe4 Bxe4 14.f3 Bb7 15.
bxc4 Rf6 {Questionable, as a King side attack could hardly be expected to succeed.} 16.Ba3 Rg6 17.Rf2  Nf6 18.Qb3 Qd7 19.Rd1 Rc8 20.Bb4 {Meaning to follow with Qa3; but the reply forbids.  The next move of White is to efficiently guard the King from accident, while the Rook is free to play elsewhere.  21. Bd3 would be preferable, the King being in no danger, the opposing Bishop having left the diagonal the moment before.} Ba6 21.Bf1? Ne8
22.Bd3 Qc7 23.Rc1 {23. Rc2 would be far better.  The evil effects of this will be noticed later on, when, as a force without support, the Rook at c1 is utilised by the adversary.} d5 24.c5 Bxd3 25.Qxd3 Rh6 26.g3 Nd6 {Now had White played the other Rook at move 23, Black could not carry out the excellent scheme he starts here.  This Knight goes to a very strong post at c4; and when he gets there, Black's position is somewhat the stronger.} 27.Bd2 Nc4 28.cxb6 
axb6 29.e4 Rf6 {This Rook is required for action on the Queen's wing.} 30.exd5 exd5 31.Bf4 Qd7 32.Re2 Re8 33.Be5 Rc6 34.Rce1 g6 
35.Qb3 Rce6 36.f4 Ra8 37.Rc1 Ra3 38.Qb4 Ra5 39.Rec2 Qb5 40.Qb3 Re7 41.Qf3 
Rea7 42.Qg2 Qb4 43.Qe2 Ra3? 44.g4! Re7 45.gxf5 Nxe5 46.dxe5 Qd4+ 47.Kh1 Re3 
48.Qg2 Kf7 49.Rc6! Qd3? 50.Rxg6 Re1+ {Black no doubt overlooked the drift of 49. Rc6.  His game is now lost.  If 50. ... hxg6, mate of course in three.} 51.Rxe1 hxg6 52.Qxg6+ Kf8 53.Rg1 Qe4+ 
54.Qg2 Rc7 55.Qxe4 dxe4 56.Re1 Rc4 57.Kg2 Rc2+ 58.Kg3 Rc3+ 59.Kg4 1-0

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