r1b1kb2/p2p1pp1/n7/2p1p2n/1pPPP1P1/7B/RP1K1Q2/1N4R1 w q - 2 20
FEN state: r1b1kb2/p2p1pp1/n7/2p1p2n/1pPPP1P1/7B/RP1K1Q2/1N4R1 w q - 2 20 ; Best move: d4e5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at d7, black pawn at f7 and black pawn at g7. Black knight at a6. Black pawn at c5, black pawn at e5 and black knight at h5. Black pawn at b4, white pawn at c4, white pawn at d4, white pawn at e4 and white pawn at g4. White bishop at h3. White rook at a2, white pawn at b2, white king at d2 and white queen at f2. White knight at b1 and white rook at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 20. White to move.