rnb1qr1k/pp1p1p1n/3Pp3/2p3Bp/P3P1P1/1P3N1P/2P2PR1/b1Q1KBN1 w - - 2 20
FEN state: rnb1qr1k/pp1p1p1n/3Pp3/2p3Bp/P3P1P1/1P3N1P/2P2PR1/b1Q1KBN1 w - - 2 20 ; Best move: c1a1
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at e8, black rook at f8 and black king at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at f7 and black knight at h7. White pawn at d6 and black pawn at e6. Black pawn at c5, white bishop at g5 and black pawn at h5. White pawn at a4, white pawn at e4 and white pawn at g4. White pawn at b3, white knight at f3 and white pawn at h3. White pawn at c2, white pawn at f2 and white rook at g2. Black bishop at a1, white queen at c1, white king at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. White to move.