r1b2b2/p2pq1r1/npp2p1k/P4ppp/Q7/RP5N/2PP1PPP/1NBK1BR1 w - - 2 20
FEN state: r1b2b2/p2pq1r1/npp2p1k/P4ppp/Q7/RP5N/2PP1PPP/1NBK1BR1 w - - 2 20 ; Best move: a5b6
The current state of the chess board is: Black rook at a8, black bishop at c8 and black bishop at f8. Black pawn at a7, black pawn at d7, black queen at e7 and black rook at g7. Black knight at a6, black pawn at b6, black pawn at c6, black pawn at f6 and black king at h6. White pawn at a5, black pawn at f5, black pawn at g5 and black pawn at h5. White queen at a4. White rook at a3, white pawn at b3 and white knight at h3. White pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. White to move.