r1b3nr/pk1p2pp/1pp2q2/2n5/1P1PQ1P1/2P2p1P/PB2PP2/R3KBNR w KQ - 3 19
FEN state: r1b3nr/pk1p2pp/1pp2q2/2n5/1P1PQ1P1/2P2p1P/PB2PP2/R3KBNR w KQ - 3 19 ; Best move: d4c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black king at b7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at b6, black pawn at c6 and black queen at f6. Black knight at c5. White pawn at b4, white pawn at d4, white queen at e4 and white pawn at g4. White pawn at c3, black pawn at f3 and white pawn at h3. White pawn at a2, white bishop at b2, white pawn at e2 and white pawn at f2. White rook at a1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 3. Full move number is 19. White to move.