CodingBat groupSum6 Solution

public boolean groupSum6(int start, int[] nums, int target) {
  if(start==nums.length) return (target==0);
  if(nums[start]==6) return groupSum6(start+1, nums, target-6);
  if(groupSum6(start+1,nums,target-nums[start])) return true;
  return groupSum6(start+1,nums,target);
  }