r1b1kb1r/pp1p3p/B1n2ppn/2Pqp3/4P1P1/B1PP1P2/P2K3P/RN1Q2NR w q - 0 15
FEN state: r1b1kb1r/pp1p3p/B1n2ppn/2Pqp3/4P1P1/B1PP1P2/P2K3P/RN1Q2NR w q - 0 15 ; Best move: e4d5
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 h8. Black pawn at a7, black pawn at b7, black pawn at d7 and black pawn at h7. White bishop at a6, black knight at c6, black pawn at f6, black pawn at g6 and black knight at h6. White pawn at c5, black queen at d5 and black pawn at e5. White pawn at e4 and white pawn at g4. White bishop at a3, white pawn at c3, white pawn at d3 and white pawn at f3. White pawn at a2, white king at d2 and white pawn at h2. White rook at a1, white knight at b1, 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 0. Full move number is 15. White to move.