rnb1kbn1/ppqp4/2Q5/1Pp1p3/2PP1p2/P3PPPr/R4K1P/1N3BNR b q - 4 15
FEN state: rnb1kbn1/ppqp4/2Q5/1Pp1p3/2PP1p2/P3PPPr/R4K1P/1N3BNR b q - 4 15 ; Best move: d7c6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black queen at c7 and black pawn at d7. White queen at c6. White pawn at b5, black pawn at c5 and black pawn at e5. White pawn at c4, white pawn at d4 and black pawn at f4. White pawn at a3, white pawn at e3, white pawn at f3, white pawn at g3 and black rook at h3. White rook at a2, white king at f2 and white pawn at h2. White knight at b1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 4. Full move number is 15. Black to move.