Sentence:  The authors would claim only that the 131 tables which summarise the results of their analyses give added precision to the bridge player's judgements when, for example, he considers how to play " le squouize " or whether to bid a " grand <WSD>chelem</WSD> ". 
Meaning of the word marked with <WSD> tags:  The act or contract for winning all, or almost all, of the possible tricks.