r3kbr1/Npp2ppp/4pP1n/7P/p3P1b1/4qQPN/PP2n1K1/R4B2 w q - 5 20
FEN state: r3kbr1/Npp2ppp/4pP1n/7P/p3P1b1/4qQPN/PP2n1K1/R4B2 w q - 5 20 ; Best move: f3e3
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at g8. White knight at a7, black pawn at b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at e6, white pawn at f6 and black knight at h6. White pawn at h5. Black pawn at a4, white pawn at e4 and black bishop at g4. Black queen at e3, white queen at f3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at b2, black knight at e2 and white king at g2. White rook at a1 and white bishop at f1. Black queenside is the only castle move available. Half move number is 5. Full move number is 20. White to move.