Above expectation — Kasparov, move 18: 18.Qb3
Candidate moveExpectation (White) Move probabilityLoss vs best Expected lossActual loss
18.Qb3  ← played0.55244.5%×0.000=0.0000.000
18.Be30.45823.6%×0.094=0.022
18.Ra30.42418.3%×0.128=0.023
18.Re10.40812.3%×0.144=0.018
Sum100% 0.0640.000
XPA = (0.064 − 0.000) × 100 = +6.4