rn2kb2/p2p1n1r/4p3/2p3pP/bBP3Pq/1PN1PR2/P2P1P2/R1K2B2 w q - 0 20
FEN state: rn2kb2/p2p1n1r/4p3/2p3pP/bBP3Pq/1PN1PR2/P2P1P2/R1K2B2 w q - 0 20 ; Best move: c3e4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at d7, black knight at f7 and black rook at h7. Black pawn at e6. Black pawn at c5, black pawn at g5 and white pawn at h5. Black bishop at a4, white bishop at b4, white pawn at c4, white pawn at g4 and black queen at h4. White pawn at b3, white knight at c3, white pawn at e3 and white rook at f3. White pawn at a2, white pawn at d2 and white pawn at f2. White rook at a1, white king at c1 and white bishop at f1. Black queenside is the only castle move available. Half move number is 0. Full move number is 20. White to move.