rB1qk1n1/3p4/b1p1p1pr/pp3p2/3P2np/P1N1PQ1P/P1P1KPB1/R5NR w q - 2 15
FEN state: rB1qk1n1/3p4/b1p1p1pr/pp3p2/3P2np/P1N1PQ1P/P1P1KPB1/R5NR w q - 2 15 ; Best move: b8d6
The current state of the chess board is: Black rook at a8, white bishop at b8, black queen at d8, black king at e8 and black knight at g8. Black pawn at d7. Black bishop at a6, black pawn at c6, black pawn at e6, black pawn at g6 and black rook at h6. Black pawn at a5, black pawn at b5 and black pawn at f5. White pawn at d4, black knight at g4 and black pawn at h4. White pawn at a3, white knight at c3, white pawn at e3, white queen at f3 and white pawn at h3. White pawn at a2, white pawn at c2, white king at e2, white pawn at f2 and white bishop at g2. White rook at a1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 15. White to move.