2rk1br1/p2qpppp/4Pn2/1ppp3P/P5n1/1P2P3/RBPPN1P1/1N1QKB1R b K - 2 13
FEN state: 2rk1br1/p2qpppp/4Pn2/1ppp3P/P5n1/1P2P3/RBPPN1P1/1N1QKB1R b K - 2 13 ; Best move: d7e6
The current state of the chess board is: Black rook at c8, black king at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black queen at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. White pawn at e6 and black knight at f6. Black pawn at b5, black pawn at c5, black pawn at d5 and white pawn at h5. White pawn at a4 and black knight at g4. White pawn at b3 and white pawn at e3. White rook at a2, white bishop at b2, white pawn at c2, white pawn at d2, white knight at e2 and white pawn at g2. White knight at b1, white queen at d1, 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 2. Full move number is 13. Black to move.