r1b3nr/1pppqppp/2n1k2B/pN6/1PP3P1/N2Pp1bP/P3PP1R/R2QKB2 b Q - 2 15
FEN state: r1b3nr/1pppqppp/2n1k2B/pN6/1PP3P1/N2Pp1bP/P3PP1R/R2QKB2 b Q - 2 15 ; Best move: e7b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7, black queen at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at c6, black king at e6 and white bishop at h6. Black pawn at a5 and white knight at b5. White pawn at b4, white pawn at c4 and white pawn at g4. White knight at a3, white pawn at d3, black pawn at e3, black bishop at g3 and white pawn at h3. White pawn at a2, white pawn at e2, white pawn at f2 and white rook at h2. White rook at a1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 2. Full move number is 15. Black to move.