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Match Play. Red trails1-4 to 9. How should Red play 55?
After the obvious hit 13/3* the question is how to play the other two fives. With two White checkers on the bar the key is to diversify as much as possible. Both 23/18, 21/16 and 21/11 are fine.
23/3* is a bad error and 21/16(2), 13/3*, leaving a horrendous 44 next time, is a massive blunder.