It may be raining in England, but the grandmasters are keeping dry by playing enterprising chess indoors at Simpson’s-in-the-Strand. Round 4 in the FIDE Grand Prix saw Boris Gelfand take the lead by beating the Chinese, Wang Hao, who may be still jet-lagged. Leading scores: B Gelfand (ISR) 3/4; A Grischuk (RUS) and P Leko (HUN) both 2.5; M Adams (ENG) … 12 players. In round 5, England’s Mickey Adams is White versus Anish Giri, who is yet to find his best form here in London. Will this prove a welcome spur for the British No. 1?