[Event "Ontario Open"]
[Site "Brantford"]
[Date "2015.05.16"]
[Round "2"]
[White "Bark, Tom"]
[Black "Plotkin, Mark"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1996"]
[BlackElo "2246"]
[Annotator "Upper,John"]
[SetUp "1"]
[FEN "2q5/6k1/1p6/p2R1R1p/8/5P2/8/3K4 b - - 0 47"]
[PlyCount "10"]
[EventDate "2015.05.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "CAN"]
[Source ""]
[SourceDate ""]
47... h4 $2 ({It's hard to be sure, but it seems that Black could have won with}47... a4 $1 48. Rxh5 a3 49. f4 {trying to use the pawn to support
a R} a2 50. Rdg5+ (50. Rhg5+ Kf6 51. Rgf5+ Qxf5 $19) 50... Kf6 51. Rh6+ Ke7 52.
Rg7+ (52. Rh7+ Kd6 53. Rh6+ Kc7 (53... Qe6 {also wins.}) 54. Rh7+ Kb8 $19)
52... Kf8 53. Ra7 Qd8+ $8 $19 {and ...Qd4, stops the mate and prepares to
promote or fork one of the stray Rs.}) 48. Rh5 (48. Rf4 Kg6 49. Rxh4 Qc3 50.
Rg4+ Kf7 51. Rf4+ Ke6 52. Rdd4 $11) 48... h3 (48... Qc4 49. Rhg5+ {White has a
perpetual.}) (48... Qc3 {keeps an eye on the kingside checks, but White can
set up a checking box with:} 49. Rdf5 $1 Qe3 50. f4 $1 {White has a perpetual.}
) 49. Rdg5+ Kf6 50. Rb5 Qd8+ 51. Rbd5 Qa8 52. Rhf5+ {The Q can't stop the
f-Rook from checking, so it's a perpeual.} 1/2-1/2