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Move to F4, cast color spray in a cone that covers the monsters on E3 and D3, but not Kurt on D4. Each of the two monsters gets a Will Save DC 14- if they fail they become (assuming they have <=2HD each) unconscious, blinded, and stunned for 2d4 rounds, blinded and stunned for 1d4 rounds, and then stunned for 1 round.
If it is impossible to make a cone in that way that doesn't hit Kurt, Shiny will cast sleep at a point behind the D3 and E3 monsters where they are in a 10 ft radius but Kurt is not (I have a hard time calculating geometry with these squares...).