public function testBlackFirst()
{
$chess = new ChessPublicator();
$chess->move('e4');
$fen = $chess->fen();
$chess->load($fen);
// do setup with black first
$chess->move('e5');
$chess->move('Nf3');
$chess->move('Nc6');
//~ $pgn = $chess->pgn([ 'max_width' => 40, 'new_line' => PHP_EOL ]);
$pgn = $chess->pgn();
//~ echo $pgn;exit;
// check setup ok
$this->assertContains('[SetUp "1"]', $pgn);
$this->assertContains('[FEN "' . $fen . '"]', $pgn);
// check movements
$this->assertContains('1. ... e5', $pgn);
$this->assertContains('2. Nf3 Nc6', $pgn);
}
public function testMoveToSAN()
{
$chess = new ChessPublicator();
// normal pawn move
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['e2'], Chess::SQUARES['e4'], Chess::BITS['NORMAL']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'e4');
// normal knight move
$chess->makeMovePublic($move);
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['g8'], Chess::SQUARES['f6'], Chess::BITS['NORMAL']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Nf6');
// normal pawn capture
$chess->load('rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq d6 0 2');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['e4'], Chess::SQUARES['d5'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'exd5');
// en passant capture
$chess->load('rnbqkbnr/ppp2ppp/8/3Pp3/8/8/PPPP1PPP/RNBQKBNR w KQkq - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['d5'], Chess::SQUARES['e6'], Chess::BITS['EP_CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'dxe6');
// normal knight capture
$chess->load('rnbqkb1r/ppp1pppp/5n2/3P4/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - 2 3');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['f6'], Chess::SQUARES['d5'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Nxd5');
// promotion
$chess->load('8/2KP4/8/5k2/8/8/8/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['d7'], Chess::SQUARES['d8'], Chess::BITS['PROMOTION'], Chess::ROOK);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'd8=R');
// check
$chess->load('3R4/2K5/8/5k2/8/8/8/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['d8'], Chess::SQUARES['f8'], Chess::BITS['NORMAL']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Rf8+');
// checkmate
$chess->load('5k2/8/1R3K2/8/8/8/8/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['b6'], Chess::SQUARES['b8'], Chess::BITS['NORMAL']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Rb8#');
// ambiguous moves: row
$chess->load('2N2k2/8/3p4/8/2N5/8/1K6/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['c4'], Chess::SQUARES['d6'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'N4xd6');
// ambiguous moves: rank > 0 & file > 0
$chess->load('8/8/8/2qqq3/2qPq3/2qqq3/1n6/K6k b - - 0 1');
// this one is really ambiguous haha
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['d5'], Chess::SQUARES['d4'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Qd5xd4');
// ambiguous moves: col
$chess->load('5k2/8/3p4/8/2N1N3/8/1K6/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['e4'], Chess::SQUARES['d6'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Nexd6');
// ambiguous moves: col
$chess->load('5k2/8/3p4/8/2N1N3/8/1K6/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['c4'], Chess::SQUARES['d6'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Ncxd6');
// ambiguous moves: normal capture
$chess->load('5k2/8/3p2R1/8/2N5/8/1K6/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['c4'], Chess::SQUARES['d6'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Nxd6');
// ambiguous moves: normal capture
$chess->load('5k2/8/3p2R1/8/2N5/8/1K6/8 w - - 0 1');
$move = $chess->buildMovePublic($chess->turn(), $chess->getBoard(), Chess::SQUARES['g6'], Chess::SQUARES['d6'], Chess::BITS['CAPTURE']);
$chess->makeMovePublic($move);
$undo = $chess->undo();
$this->assertSame($undo['san'], 'Rxd6');
// generate moves test
$chess->load('8/ppp2P2/pkp5/ppp5/5PPP/5PKP/5PPP/8 w - - 0 1');
$moves = $chess->generateMovesPublic();
array_walk($moves, function (&$move) use($chess) {
$move = $chess->moveToSANPublic($move);
});
$this->assertContains('f8=Q', $moves);
$this->assertContains('f8=R', $moves);
$this->assertContains('f8=B', $moves);
$this->assertContains('f8=N', $moves);
$this->assertContains('f5', $moves);
$this->assertContains('g5', $moves);
$this->assertContains('h5', $moves);
}
public function testInStalemate()
{
$chess = new ChessPublicator();
$this->assertSame($chess->inStalemate(), false);
// fen source: https://www.redhotpawn.com/forum/only-chess/interesting-stalemate-position.152109
// start fen : 3b3k/p6p/1p5P/3q4/8/n7/PP6/K4Q2 w - - 0 1
$chess->load('7k/p6p/1p3b1P/3q4/8/n7/PP6/K7 w - - 0 2');
$this->assertSame($chess->inStalemate(), true);
}
