Stubs for major search revamp
Copyright et al
Experiments with search
Ply calculation
Print best line
More experiments with search
Even more experiments with search
Search experiments: when in check
Test puzzles for the experiments with search
Some more experiments with revamping search
Use correct position for search
Some cleanup
Made root search to accept maximum depth parameter; use logging instead of print
Experiments with search: save best line
Experiments with search: faster way to save best move found
Save principal variation only when necessary
Save/preserve killer moves
Simpler selection of best move
Search experiments: checkmate pruning
Search experiments: null move pruning