Tweedledum and Tweedledee (?.)

• Castor and Pollux
• Gemini
• Siamese twins
• Twin Stars
• dead heat
• deadlock
• draw
• even break
• exact mates
• fair shake
• fraternal twins
• identical twins
• knotted score
• neck-and-neck race
• pair of twins
• photo finish
• stalemate
• standoff
• the same
• tie
• twins