r1b1k1nr/p1bpq3/n5pp/2p1N2P/1p1P1PN1/2P1P3/PPQ3P1/1RB1KB1R b K - 0 15
FEN state: r1b1k1nr/p1bpq3/n5pp/2p1N2P/1p1P1PN1/2P1P3/PPQ3P1/1RB1KB1R b K - 0 15 ; Best move: c7e5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at c7, black pawn at d7 and black queen at e7. Black knight at a6, black pawn at g6 and black pawn at h6. Black pawn at c5, white knight at e5 and white pawn at h5. Black pawn at b4, white pawn at d4, white pawn at f4 and white knight at g4. White pawn at c3 and white pawn at e3. White pawn at a2, white pawn at b2, white queen at c2 and white pawn at g2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 15. Black to move.