1rb1qb1r/pp1pBpp1/4p2p/1N5P/PP1PkP2/4n1n1/2P1PKP1/2RQ1BNR w - - 5 20
FEN state: 1rb1qb1r/pp1pBpp1/4p2p/1N5P/PP1PkP2/4n1n1/2P1PKP1/2RQ1BNR w - - 5 20 ; Best move: d1d3
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, white bishop at e7, black pawn at f7 and black pawn at g7. Black pawn at e6 and black pawn at h6. White knight at b5 and white pawn at h5. White pawn at a4, white pawn at b4, white pawn at d4, black king at e4 and white pawn at f4. Black knight at e3 and black knight at g3. White pawn at c2, white pawn at e2, white king at f2 and white pawn at g2. White rook at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 20. White to move.