Query the last emerged pattern4 pos. @note p4 must be one of [C_BLOCK4_FLEX3, B_FLEX4, A_FIVE].

Gets the total length of a shape.

Get number of steps to mate from value and current ply

A right logical shift function that supports negetive shamt. It might be implemented as rotr64 to avoid conditional branch.

unoptimized version; solves endianess & alignment issues */

Return true if the label has a determined result.

Returns whether this node has no children.

LZ4HC_encodeSequence() : * @return : 0 if ok, * 1 if buffer issue detected */

Return the depth component of a depth bound.

Get the child node of this edge. @note when `getVisits() > 0`, the child node should be guaranteed to be non-null.

Get the last move played, same as getRecentMove(0).

Check if the pos is on an empty cell. @pos The pos to query, which is assumed to meet 'pos.valid() == true'.

Notify all threads to stop thinking immediately.

Flip current side to move without recording in state info. This is only served for some special board checking proecess. It must be used in pair local

Get history move pos according to move index. @param moveIndex Index of the move, in range [0, ply()).

Check whether the pos is inside a board with width and height.

Check if the pos is legal (on an empty cell or is a pass move).

customized variant of memcpy, which can overwrite up to 8 bytes beyond dstEnd */

Returns the next lower instruction type.

Return if this thread is the main thread.

* Determines if the given TOML element is a table. */

Set a new depth and bound for this record.

Get table index for rule and color.

price in bytes */

* Converts the TOML element to an array. */

Make a balanced value from original value and balance bias. @param value The original value. @param bias Value bias for balanced value. @return Compar

Returns the edge array at the given index. If this node has no edges, returns nullptr.

* @brief Get the number of blocks. Note that this may be different than the desired number of blocks that was passed to the constructor. *

The number of extra multi-pv moves.