Note that 68. Rxe5 loses to Ra1 69. Rh5 h2 70. Ke2 Ra1!

Also I'm not sure if there were three adjournments but there were at least two (around move 40 and 56(?!) somewhere). I don't know how the timer was set then and if it was like in the eighties.

Who cares what the weather was.

90...Rh1 91. Rf4 Rh2 92. Re4+ Kd6 93. Kf7 Rf2+ 94. Kg6 Rg2+ 95. Kf6 Rf2+ 96. Kg5 Rg2+ 97. Rg4 etc.

Thes position looks drawn at move 71 in anycase.

Mistakes in rook and pawn endings between players of the same nation in international events have sometimes been used as evidence of a fix, by the way. You never know what the capitalists will get up to next, do you ?

Peligroso Patzer: <lostemperor: Here Sherwin manage[d] to reach an equal endgame> [Note by PP: Strictly speaking, the ending is <theoretically drawn>, but Black clearly has the burden of defending accurately, so it does not seem entirely accurate to call the position "equal".] <in the Interzonal against his nemesis. Fischer squeezed out the win after three adjournments. A last chance of drawing was 78 ...Ra8, e.g., 79. Kh4 Rh8+ 80. Kg5 Rg8+ 81. Kf[4] Rf8+ 82. Kg3 Rxf3 and the black king will keep opposition. And if 78...R[a]8 79. g5 Rh4 80. g6 Ra6.>

This analysis (which is accurate, with a couple of typos corrected) considers the position after <78. Rf8-f3> (which is analyzed in the recently pulished <Tragicomedy in the Endgame>, by Mark DVORETSKY, Russell Enterprises, Inc. ©2011, at page 21):

click for larger view

One further point (not mentioned by Dvoretsky) that seems to me worth noting about this endgame is that if the position in the diagram is changed by shifting all the K-side pieces one file towards the Q-side, viz.:

click for larger view

… Black on move can no longer save the draw. The reason for this is that with the White King having TWO files available to maneuver on the outside of his passer, the Black King must be on the 6th rank (and specifically on d6, i.e., cut off from White’s passer by only ONE intervening file) to be able to respond immediately to a lateral defense of the pawn by the Rook (i.e., Rook to f4 must be immediately answered by attacking the Rook with the King).

Thus, in the position in the second diagram above, the analogous continuation to the first one given by <lostemperor> (starting from the modified position with <78. … Ra8 79. Kg4 Rg8+>) fails because White now has <80. Kh5! Rf8 81. Re4 Kd6> (Only 81. … Kd5!!! Would draw, but unfortunately for Black, it’s illegal.) <82. Kg6 Kd5 83. Ra4 Rg8+ 84. Kf7 Rg4 85. Ra5+ Kd6 86. f5> and White will reach a Lucena position.

Peligroso Patzer: To clarify the following comment from my previous post relating to the requirements of the applicable drawing technique : <“with the White King having TWO files available to maneuver on the outside of his passer, the Black King must be on the 6th rank (and specifically on d6, i.e., cut off from White’s passer by only ONE intervening file)”> in this position:

click for larger view

Black on move is lost because, for example, if he tries <1. … Ra8> (which would draw IF the Black King were on d6), White wins with <2. Rd3!> creating a TWO-file cut off of the Black King.

See something that violates our rules? Blow the whistle and inform a moderator.