r1b1kbnr/pp3pp1/3pp2p/qNn5/1Pp5/2PP2P1/P2BPPBP/R2QK1NR w KQkq - 0 13
FEN state: r1b1kbnr/pp3pp1/3pp2p/qNn5/1Pp5/2PP2P1/P2BPPBP/R2QK1NR w KQkq - 0 13 ; Best move: b4a5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at f7 and black pawn at g7. Black pawn at d6, black pawn at e6 and black pawn at h6. Black queen at a5, white knight at b5 and black knight at c5. White pawn at b4 and black pawn at c4. White pawn at c3, white pawn at d3 and white pawn at g3. White pawn at a2, white bishop at d2, white pawn at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.