r1bqk1r1/p2nbp1p/1p2Pnp1/1P6/4pP1P/P7/R4KP1/1NBQ1BNR b q - 0 15
FEN state: r1bqk1r1/p2nbp1p/1p2Pnp1/1P6/4pP1P/P7/R4KP1/1NBQ1BNR b q - 0 15 ; Best move: f7e6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at a7, black knight at d7, black bishop at e7, black pawn at f7 and black pawn at h7. Black pawn at b6, white pawn at e6, black knight at f6 and black pawn at g6. White pawn at b5. Black pawn at e4, white pawn at f4 and white pawn at h4. White pawn at a3. White rook at a2, white king at f2 and white pawn at g2. White knight at b1, white bishop at c1, white queen at d1, 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 0. Full move number is 15. Black to move.