New York Times, New York, New York, Wednesday, July 14, 1971 - Page 41
Fischer Maintains His Streak, Beating Larsen in Fourth Game
Denver, July 13—Bobby Fischer defeated Bent Larsen of Denmark in 33 moves in the fourth game of their chess match today. Fischer leads, 4-0.
He has now won 10 straight games in grandmaster match play, including the 6-0 trouncing he gave to Mark Taimanov of the Soviet Union.
Six games remain on the schedule, but they may not all be needed. Fischer can end the match by taking another 1½ points, while Larsen must earn five out of six points to stay in the challenger elimination series.
The winner will play the winner in the Moscow series between Tigran Petrosian and Viktor Korchnoi to decide who will play Boris Spassky next spring for the world title.
King's Indian Defense
Fischer, with the black pieces, used the King's Indian Defense today. The game soon developed into a battle of strategies. Larsen moved on the queen side, playing to open lines for threats against the black pawns.
Fischer concentrated on the king side, advancing his king's bishop pawn and gradually shifting his forces to that king.
Each player gained ground in his chosen area, giving little regard to defensive tactics until the need arose. It was soon clear that Fischer's threats would be more dangerous, since Larsen could not allow his king to be exposed.
The turning points came on the 24th move, when Larsen's retreat of his knight presented a target. Fischer immediately moved his king bishop pawn another notch, with a further advance in sight.
Larsen continued to probe on the queen side but Fischer's attack on the king had too much momentum. He soon broke up Larsen's protective pawn chain and the end was in sight.
In the final position, Fischer moved a knight that attacked Larsen's queen and rook, and also threatened a check to the king. Larsen conceded at that point.
The attendance at the games in Temple Buell College here, has varied from about 100 on weekdays to about 250 on Sunday. Many more would have been expected had the match been held in either New York City or Los Angeles, and this is one reason Fischer preferred Denver when he made the choice of sites.