rnbqk1r1/ppp3pp/B3pp1n/3p4/1bP5/4P1P1/PP1PKP1P/RNBQ2NR w q - 3 7
FEN state: rnbqk1r1/ppp3pp/B3pp1n/3p4/1bP5/4P1P1/PP1PKP1P/RNBQ2NR w q - 3 7 ; Best move: d1a4
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 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at g7 and black pawn at h7. White bishop at a6, black pawn at e6, black pawn at f6 and black knight at h6. Black pawn at d5. Black bishop at b4 and white pawn at c4. White pawn at e3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at d2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 3. Full move number is 7. White to move.