rn2k2r/1p1nq1bp/4p1p1/p4p2/1P2NP2/2NpP1PP/PB2B3/R4K1R w kq - 5 20
FEN state: rn2k2r/1p1nq1bp/4p1p1/p4p2/1P2NP2/2NpP1PP/PB2B3/R4K1R w kq - 5 20 ; Best move: e4g5
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 b7, black knight at d7, black queen at e7, black bishop at g7 and black pawn at h7. Black pawn at e6 and black pawn at g6. Black pawn at a5 and black pawn at f5. White pawn at b4, white knight at e4 and white pawn at f4. White knight at c3, black pawn at d3, white pawn at e3, white pawn at g3 and white pawn at h3. White pawn at a2, white bishop at b2 and white bishop at e2. White rook at a1, white king at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 5. Full move number is 20. White to move.