zydeco: An interesting contrast of styles. Unzicker is the epitome of a correct player, while Larsen tries to create imbalances at any cost.
The opening is played exactly. Unzicker suggests 19.e4 and 21.Ne4 as alternatives for white.
On move 23, Larsen comments: "It is alright to play for a win with white here, especially as Unzicker had only a half hour left, but it should be done very calmly."
On move 25, Larsen writes: "This is suicide. The tragedy of the 11th round [Larsen's loss to Donner] starts repeating itself."
Unzicker offered a draw on move 28, when he was significantly better (he was worried about time pressure), which Larsen refused. "A courage worthy of appreciation!" writes Unzicker.
29.Qf4 was better for defense.
Larsen was in horrible time pressure when he erred with 35.Kf2.