rnbqkb1n/p3p1pr/2p5/3p1p2/P4P1p/1pP1PN2/1P1P2PP/1RB1KB1R w Kq - 0 13
FEN state: rnbqkb1n/p3p1pr/2p5/3p1p2/P4P1p/1pP1PN2/1P1P2PP/1RB1KB1R w Kq - 0 13 ; Best move: b1a1
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black knight at h8. Black pawn at a7, black pawn at e7, black pawn at g7 and black rook at h7. Black pawn at c6. Black pawn at d5 and black pawn at f5. White pawn at a4, white pawn at f4 and black pawn at h4. Black pawn at b3, white pawn at c3, white pawn at e3 and white knight at f3. White pawn at b2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.