rn2k2r/7p/2p3pP/pp1ppp1n/1B2NP2/3P4/PPP1P1BP/R1Q2KR1 w kq - 0 20
FEN state: rn2k2r/7p/2p3pP/pp1ppp1n/1B2NP2/3P4/PPP1P1BP/R1Q2KR1 w kq - 0 20 ; Best move: e4d6
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at h7. Black pawn at c6, black pawn at g6 and white pawn at h6. Black pawn at a5, black pawn at b5, black pawn at d5, black pawn at e5, black pawn at f5 and black knight at h5. White bishop at b4, white knight at e4 and white pawn at f4. White pawn at d3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at e2, white bishop at g2 and white pawn at h2. White rook at a1, white queen at c1, white king at f1 and white rook at g1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 20. White to move.