I am looking in Svetozar Gligoric's games from 1963.
Tough year. World didn't recover from Cuban crisis when Kennedy was assassinated.
Fischer played blitz for peanuts between rounds of 2 summer US opens, and then won 11 out of 11 in round robin championship.
Gligoric was tired. He turned 40. Still young in body and soul (*he never smoked or drank too much, and was avid soccer player and loved swimming and tennis), but he got bored. He had a nice job as a journalist, and he still traveled much thanks to chess. He wasn't aware of it, but he missed his last chance for serious fight for WC in 1959. He was tired, bored, but the force of his healthy body and curiosity gave him energy to continue, almost as a ladies man in rich Californian circles, as GM Borislav Ivkov recently revealed in his late memoirs. Gligoric took par in Hastings New Year tournament, in First Piatigorsky Cup, in Sarajevo.. but he played as if he thought on something else. He played sharp, all right, with versatile repertoire, but without razor edge and novelties. He let his technique play for him as if he turned automatic pilot on.
I remembered his article in Chess Messenger from 1964, from Piatigorsky Cup. "Dallas still impose pressure on everyone due memories on assassination. Jetleg kept me awake me for days, my eyes hurt from numberless TV channels, which I watched until snow showed on the screen. I couldn't find inspiration in my games, I played as with hangover..."
Gligorc's best moment in Dallas was victory against Petrossian with white in Breier's variation of Ruy Lopez, in the same variation Fischer was going to improve in next Piatigorsky Cup against Portisch.
Gligoric losy as white against Olafsson in 100 moves. The ending was the same one Carlsen managed o save against Nakamura.
K+R+ 2 P vs. K+N+ 2P
Gligoric vs. Olafsson
after 74 moves
[FEN "8/8/4p1N1/2k3Pp/5P2/6K1/8/4r3 w - -"]
75. Ne5 Kd6 76. Nf7 Ke7 77. Ne5 Kf8 78. Kh4 Rh1 79. Kg3 Kg7 80. Nf3 Rf1 81. Ne5 Re1 82. Kf3 Ra1 83. Kg3 Ra4 84. Nf3 Rb4 85. Ne5 h4 86. Kxh4 Rxf4 87. Kh5 Re4 88. Nd3 Kf7 89. Nf2 Re3 90. Kg4 Kg6 91. Kf4 Ra3 92. Ke5 Rf3 93. Ne4 Re3 94. Kf4 Re1 95. Ke5 Kf7 96. Kf4 Rf1 97. Ke5 Rf5 98. Kd4 Kg6 99. Ke3 Ra5 100. Kf4 e5 {0-1}
Nakamura as white against Carslen didn't have patience to convert material advantage into whole point.
[FEN "8/2r2p2/4k3/7R/8/2p5/2N3P1/6K1 w - - "]
43. Kf2 f5 44. Rh3 Ke5 45. Rd3 Kf4 46. Rd4 Kg5 47. Kf3 Rc8 48. Ra4 Rc7 49. Ra8 Kf6 50. Ra6 Kg5 51. Nd4 Rc4 52. Ne6 Kf6 53. Nf4 Ke5 54. Nd3 Kd5 55. Ra2 Kd4 56. Nc1 c2 57. Ra5 Rc3 58. Kf4 Rc8 59. Rxf5 Re8 60. Rf7 Re1 61. Rd7 Kc3 62. Rc7 Kd2 63. Nb3 Kd3 64. Nc5 Kd4 65. Nb3 Kd3 66. Nc5 Kd4 67. Nb3 Kd3 68. g4 Rf1 69. Kg5 Rb1 70. Nc5 Ke3 71. Nb3 Kd3 72. Nc5 Ke3 73. Nb3*
Gligoric qualified on zonal tournament but he knew it was nothing to feel good about it: he traveled roads well known and waited for poor opponents to defeat themselves.
Peak of the year for him was tournament in Moscow, where he wished to fight for 1st place after 11 rounds. But then his lack of theoretical preparation turned traitor: he tried Najdorf variation with black pieces against Tal and lost without fight.
Tal - Gligoric (Moscow 1963)
He ended 3rd in Moscow behind Smyslov and Tal, and ahead of KGB agent GM Antoshin, Keres, Szabo, young Hort etc.
In Sarajevo he made plenty of bloodless draws, but he played Ben Oni with black pieces against Shamkovich single and only time in his carrier.