In his April 18 op-ed column, “A crisis defused?,” David Ignatius praised President Obama for his handling of the situation in Ukraine. Mr. Ignatius acknowledged that Mr. Putin has successfully seized Crimea and “may well gain effective control of eastern Ukraine,” and yet Mr. Ignatius maintained that “each side can reasonably claim success.” What scoring system did Mr. Ignatius use in his analysis of success?

Dennis Clarke, McLean