rnb1k2r/1p1qp2p/2pp1n1b/p4pp1/1PK3PP/P2P3B/2P1PP2/RNB2QNR b kq - 3 10
FEN state: rnb1k2r/1p1qp2p/2pp1n1b/p4pp1/1PK3PP/P2P3B/2P1PP2/RNB2QNR b kq - 3 10 ; Best move: d7e6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at b7, black queen at d7, black pawn at e7 and black pawn at h7. Black pawn at c6, black pawn at d6, black knight at f6 and black bishop at h6. Black pawn at a5, black pawn at f5 and black pawn at g5. White pawn at b4, white king at c4, white pawn at g4 and white pawn at h4. White pawn at a3, white pawn at d3 and white bishop at h3. White pawn at c2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 10. Black to move.