Mater is a mate searching program written in Pascal by Valentin Albillo.
In this repository you can find the original program by V. Albillo, and a version retouched by me (Roland Chastain).
You can find the original program here. The compressed file website.zip contains the documentation of the original program.
Here are eight problems coming from Mater original website. These problems are solved in the program demo.pas.
b7/PP6/8/8/7K/6B1/6N1/4R1bk w - -
Search mode: all moves
Maximum moves number: 3
Result: b7a8n
8/8/1p5B/4p3/1p2k1P1/1P3n2/P4PB1/K2R4 w - -
Search mode: all moves
Maximum moves number: 3
Result: h6c1
2N5/8/k2K4/8/p1PB4/P7/8/8 w - -
Search mode: all moves
Maximum moves number: 4
Result: d6c7
rnbK2R1/p6p/p1kNpN1r/P3B1Q1/3P1p1p/5p2/5p1b/8 w - -
Search mode: all moves
Maximum moves number: 4
Result: f6d5
8/1n2P2K/3p2p1/2p3pk/6pr/4ppr1/6p1/1b6 w - -
Search mode: all moves
Maximum moves number: 3
Result: h7g7
4K1R1/PP2P3/2k5/3pP3/3B4/6P1/8/8 w - -
Search mode: all moves
Maximum moves number: 3
Result: b7b8r
8/2P1P1P1/3PkP2/8/4K3/8/8/8 w - -
Search mode: all moves
Maximum moves number: 3
Result: e7e8b
3nn3/2p2p1k/1p1pp1p1/p2B3p/r2B2N1/7N/8/7K w - -
Search mode: check sequence
Maximum moves number: 12
Result: h3g5
As you can see, Mater has two search modes: either he searches for all moves, or he only searches for checkmate by consecutive checks (as in the last example).
Mater expects at less two parameters: the position (in the EPD format) and the moves number. A third parameter can be used to change the search mode, so that only mates by consecutive checks are searched.
mater -position "3nn3/2p2p1k/1p1pp1p1/p2B3p/r2B2N1/7N/8/7K w KQkq -" -moves 12 -check
mater -p "3nn3/2p2p1k/1p1pp1p1/p2B3p/r2B2N1/7N/8/7K w KQkq -" -m 12 -c
Mater is compiled with Free Pascal.
fpc -Mobjfpc -Sh -Fulibrary -Fulibrary/flre/src mater.pas