rnb1qbn1/p1p1k3/1p3p2/3pp1Br/3PQ1p1/N4P1P/PPP1P1N1/R3KBR1 w Q - 1 17
FEN state: rnb1qbn1/p1p1k3/1p3p2/3pp1Br/3PQ1p1/N4P1P/PPP1P1N1/R3KBR1 w Q - 1 17 ; Best move: e4e5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at c7 and black king at e7. Black pawn at b6 and black pawn at f6. Black pawn at d5, black pawn at e5, white bishop at g5 and black rook at h5. White pawn at d4, white queen at e4 and black pawn at g4. White knight at a3, white pawn at f3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at e2 and white knight at g2. White rook at a1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 17. White to move.