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| Black to make his 29th move in Spanton (171) - Motiejus Gudenas (189) |
Black has the initiative but White's well-placed rook and the weakness of Black's f pawn mean the game should be drawn. My main analysis engines Komodo9 and Stockfish10 reckon the position is dead equal.
30.b4
An even easier draw is to be had by repeated checking, eg 30.Rc8+ Kf7 31.Rc7+ Kf8 32.Rc8+ Ke7 33.Rc7+ as White's h pawn is very fast after the try 33...Kd6?! 34.Rxg7.
30...axb4 31.axb4 Rd4 32.b5 Rb4 33.Kf3 g5 34.Kg4 Rxb5
Black is a pawn up but the game should still be drawn.
35.h4 h6 36.hxg5
36.h5 also seems to draw but the text is simpler.
36...hxg5 37.Rb7 Kf8 38.e3 fxe3 39.fxe3 Ke8 40.e4 Kd8 41.Rg7 Re5 42.Rxg5?!
This is theoretically OK but requires precise play. Easier was 42.Kf3 as White's rook keeps Black's king on its back rank. If Black tries advancing the b pawn, White's rook waits for the right moment to get behind it, eg 42...b5 43.Ke3 b4 44.Rb7 with a trivial draw,
42...Rxe4+
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| White to play and draw |
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43.Kf3?
The only way to draw was 43.Kf5. The point is that if Black plays as in the game 43...Re7, White has another only move in 44.Kf6 (analysis courtesy of the Nalimov endgame database). White is then threatening to play Rb5, eg after 44...Kd7. Alternatively, if Black makes a rook move such as 44...Rd7, White's king can approach the pawn. A likely continuation would be 45.Ke5 Kc7 46.Rg6 b5 47.Ke4, when Black cannot make progress. The difference will become clearer after the game continuation.
43...Re7
Black has an easy win as White's king is cut off far from the pawn while Black's king is free to escort the pawn to the eighth rank.
44.Rb5
The pawn ending after 44.Kf4 Kc7 45.Re5 Rxe5 46.Kxe5 Kc6 47.Kd4 is also hopeless as long as Black plays 47...Kb5 48.Kc3 Ka4 rather than the drawing 47...b5??
The remaining (rather unnecessary) moves were:
45...Kc7 45.Rb4 Kc6 46.Rh4 b5 47.Rh6+ Kc5 48.Rh5+ Kc4 49.Rh4+ Kc3 50.Rh8 b4 51.Rc8+ Kb2 52.Rb8 b3 53.Kf2 Kc2 54.Rc8+ Kb1 55.Rb8 b2 56.Rb5 Kc2 57.Rc5+ Kb3 58.Rb5+ Kc3 59.Kf1 Re4 0-1
Updated statistics
Battersea 2018-19
Event...Colour...Grade...Opponent's Grade...Result
CLL........B..........167...….........196...............…D
LL...…….B...…...167...………..159...………….D
CLL...…..B...…...167...………..161...………….W
CLL...…..B...…...167...………..190...………….D
LL...…….W...…..167...………..161...….………W
CLL...…..W...…..167...………..148...………….D
CLL...…..W...…..167...………..165...………….W
CLL...…..W...…..167...………..160...………….D
CLL...…..W...…..167...………..159...………….D
LL...…….B...…...167...………..168...………….D
LL...…….W...…..171...………..159...………….W
CLL...…..B...…...171...………..198...……….….L
CLL...…..B...…...171...………..169...…………..L
CLL...…..B...…...171...………..196...…………..L
LL...…….B...…...171...………..182...…………..D
CLL...…..W...…..171...………..189...…………..L
Overall this season for Battersea I have scored +4=8-4 for a grading performance of 173.
In season 2017-18 I scored +10=8-9 for a grading performance of 175.
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