#define SEARCH_ENGINE_VERSION "V1.07"

#define MAXVALUE 200000000L

#define PROVED        1
#define DISPROVED    -1
#define UNKNOWN       0
#define UNIMPORTANT 127

#define AND_TYPE 1
#define OR_TYPE  2

#define MEM2USE (10*1024L*1024L)
#define MAXNODESNUMB 40960

struct bintree {
					struct bintree *parent;
					struct bintree *lson,*rson;
					struct node *node;
					};

struct node {
				struct node *parent[7];
				struct node *child[7];
				unsigned char square[(BOARDX+1)*(BOARDY+2)];
				unsigned char stack[BOARDX+1],turn,symmetric[7];
                long proof,disproof;
                short value,expanded,type,evaluated,direct;
				};

struct dbtree {
				  struct dbtree *parent;
				  struct dbtree *lson,*rson;
                  unsigned char cpos[12];
                  short stacked;
                  short value;
                  };

struct small_tree {
						struct small_tree *parent,*lson,*rson;
						unsigned char buffer[14];
                  };

struct parameters {
                  long maxnodes;
                  long nodes,pr,ds,nodes_added;
                  };

struct bintree *init_bin_tree(struct node *);
struct node *check_node(struct bintree *,struct node *,short);
struct dbtree *init_dbase(unsigned char *,short);

struct bintree *fast_init_bin_tree(struct node *);
struct node *fast_check_node(struct bintree *,struct node *,short);