r1b1kbr1/1p2p1pp/7n/p1pp4/P2n1p2/4P1PN/RPPBQ1KP/1N5R w q - 0 13
FEN state: r1b1kbr1/1p2p1pp/7n/p1pp4/P2n1p2/4P1PN/RPPBQ1KP/1N5R w q - 0 13 ; Best move: e3d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at b7, black pawn at e7, black pawn at g7 and black pawn at h7. Black knight at h6. Black pawn at a5, black pawn at c5 and black pawn at d5. White pawn at a4, black knight at d4 and black pawn at f4. White pawn at e3, white pawn at g3 and white knight at h3. White rook at a2, white pawn at b2, white pawn at c2, white bishop at d2, white queen at e2, white king at g2 and white pawn at h2. White knight at b1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 13. White to move.