diff --git a/src/tbconfig.h b/src/tbconfig.h
@@ -0,0 +1,123 @@
+/*
+ * tbconfig.h
+ * (C) 2015 basil, all rights reserved,
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef TBCONFIG_H
+#define TBCONFIG_H
+
+/****************************************************************************/
+/* BUILD CONFIG:                                                            */
+/****************************************************************************/
+
+/*
+ * Define TB_NO_STDINT if you do not want to use <stdint.h> or it is not
+ * available.
+ */
+/* #define TB_NO_STDINT */
+
+/*
+ * Define TB_NO_STDBOOL if you do not want to use <stdbool.h> or it is not
+ * available or unnecessary (e.g. C++).
+ */
+#define TB_NO_STDBOOL       // Gull is C++, so no need for stdbool.h
+
+/*
+ * Define TB_NO_THREADS if your program is not multi-threaded.
+ */
+/* #define TB_NO_THREADS */
+#define TB_NO_THREADS       // Gull does not use threads.
+
+/***************************************************************************/
+/* ENGINE INTEGRATION CONFIG                                               */
+/***************************************************************************/
+
+#include <stdint.h>
+#define uint64      unsigned long long
+
+/*
+ * If you are integrating tbprobe into an engine, you can replace some of
+ * tbprobe's built-in functionality with that already provided by the engine.
+ * This is OPTIONAL.  If no definition are provided then tbprobe will use its
+ * own internal defaults.  That said, for engines it is generally a good idea
+ * to avoid redundancy.
+ */
+
+/*
+ * Define TB_KING_ATTACKS(square) to return the king attacks bitboard for a
+ * king at `square'.
+ */
+extern uint64 SArea[64];
+#define TB_KING_ATTACKS(square)             SArea[(square)]
+
+/*
+ * Define TB_KNIGHT_ATTACKS(square) to return the knight attacks bitboard for
+ * a knight at `square'.
+ */
+extern uint64 NAtt[64];
+#define TB_KNIGHT_ATTACKS(square)           NAtt[(square)]
+
+/*
+ * Define TB_ROOK_ATTACKS(square, occ) to return the rook attacks bitboard
+ * for a rook at `square' assuming the given `occ' occupancy bitboard.
+ */
+extern const uint64 RMagic[64];
+extern uint64 RMagicMask[64];
+extern const int RShift[64];
+extern uint64 *ROffsetPointer[64];
+#define TB_ROOK_ATTACKS(square, occ)                                    \
+    (*(ROffsetPointer[(square)] + (((RMagicMask[(square)] & (occ)) *    \
+        RMagic[(square)]) >> RShift[(square)])))
+
+/*
+ * Define TB_BISHOP_ATTACKS(square, occ) to return the bishop attacks bitboard
+ * for a bishop at `square' assuming the given `occ' occupancy bitboard.
+ */
+extern const uint64 BMagic[64];
+extern uint64 BMagicMask[64];
+extern const int BShift[64];
+extern uint64 *BOffsetPointer[64];
+#define TB_BISHOP_ATTACKS(square, occ)                                  \
+    (*(BOffsetPointer[(square)] + (((BMagicMask[(square)] & (occ)) *    \
+        BMagic[(square)]) >> BShift[(square)])))
+
+/*
+ * Define TB_QUEEN_ATTACKS(square, occ) to return the queen attacks bitboard
+ * for a queen at `square' assuming the given `occ' occupancy bitboard.
+ * NOTE: If no definition is provided then tbprobe will use:
+ *       TB_ROOK_ATTACKS(square, occ) | TB_BISHOP_ATTACKS(square, occ)
+ */
+#define TB_QUEEN_ATTACKS(square, occ)                                   \
+    (TB_ROOK_ATTACKS(square, occ) | TB_BISHOP_ATTACKS(square, occ))
+
+/*
+ * Define TB_PAWN_ATTACKS(square, color) to return the pawn attacks bitboard
+ * for a `color' pawn at `square'.
+ * NOTE: This definition must work for pawns on ranks 1 and 8.  For example,
+ *       a white pawn on e1 attacks d2 and f2.  A black pawn on e1 attacks
+ *       nothing.  Etc.
+ */
+extern uint64 PAtt[2][64];
+#define TB_PAWN_ATTACKS(square, color)      PAtt[!(color)][(square)]
+
+#undef uint64
+
+#endif