His role as arbitrator of the Fischer - Spassky World Championship match in Reykjavik, Iceland in 1972 was a very difficult one which he carried out with great tact and skill.
Kanyang papel bilang tagahatol ng Fischer - Spassky World championship tumugma sa Reykjavik, Iceland sa 1972 ay isang mahirap na kung saan siya ang isa natupad na may mahusay na pamamaraan at kasanayan.